upd: TB quick_fix

add: reference signal generation, correlation metrics functions, baseline test task
fix: small fixes of ports and code refactoring

.gitignore

@@ -16,6 +16,7 @@
 .Xil
 xvlog.pb
 *vivado_pid*
+**/work/*
 
 # some generated files (they annoy me)
 update_config.tcl
@@ -26,4 +27,8 @@ run_sim.tcl
 *.bit
 *.xsa
 *.ltx
-*.bin
+*.bin
+
+# slang files
+.slang
+files.f

.gitmodules

@@ -1,6 +0,0 @@
-[submodule "libs/rtl_libs"]
-	path = libs/rtl_libs
-	url = https://git.radiophotonics.ru/baulin.fa/rtl_libs.git
-[submodule "libs/verilog-axi"]
-	path = libs/verilog-axi
-	url = https://github.com/alexforencich/verilog-axi.git

designs/adc_dac_synchoronizer/Makefile

@@ -27,6 +27,7 @@ XDC_FILES += ../../constraints/ax7102.xdc
 XDC_FILES += debug.xdc
 
 SYN_FILES += tb_sync_top.sv
+
 SIM_TOP = tb_top
 
 

designs/adc_dac_synchoronizer/debug.xdc

@@ -1,10 +1,12 @@
 # Primary clocks
-create_clock -name eth_clk -period 8.000  [get_ports dac_clk_in]
+create_clock -name geneartor_clk -period 8.000  [get_ports clk_dac]
-create_clock -name acc_clk -period 15.385  [get_ports adc_clk_in]
+create_clock -name sampler_clk -period 15.385  [get_ports clk_adc]
+set_clock_groups -asynchronous -group [get_clocks geneartor_clk] -group [get_clocks sampler_clk]
 
+# set_false_path -through [get_nets -hierarchical {*dac_signal* *internal_wire_singnal* *adc_singnal*}]
+# set_false_path -through [get_nets {dac_done dac_done_stretched dac_request adc_done adc_request}]
 
-# Asynchronous clock groups
+ set_property DONT_TOUCH true [get_cells -hierarchical -filter {NAME =~ *generator_inst*pulse_height_reg*}]
-
+ set_property DONT_TOUCH true [get_cells -hierarchical -filter {NAME =~ *generator_inst*dac_out_reg*}]
-set_clock_groups -name ASYNC_ETH_ACC -asynchronous \
+# Применяем к самому проводу сигнала CE, чтобы Vivado не дробила его
-    -group [get_clocks eth_clk] \
+# set_property DONT_TOUCH true [get_nets -of_objects [get_pins -hierarchical -filter {PIN_NAME =~ *CE} -of_objects [get_cells *pulse_height_reg*]]]
-    -group [get_clocks acc_clk]

designs/adc_dac_synchoronizer/sync_top.sv

@@ -2,113 +2,137 @@
 
 module sync_top
 #(
-    parameter int unsigned DAC_DATA_WIDTH = 14,
+    parameter int unsigned DAC_DATA_WIDTH = 14, // DAC bit-width
-    parameter int unsigned ADC_DATA_WIDTH = 12,
+    parameter int unsigned ADC_DATA_WIDTH = 12, // ADC bit-width
-    parameter int unsigned PACK_FACTOR    = 1,
+    parameter int unsigned PACK_FACTOR    = 1,  // number of ADC readings per transaction
-    parameter int unsigned PROCESS_MODE   = 0
+    parameter int unsigned PROCESS_MODE   = 0,  // representation format of ADC readings (0 - direct code, 1 - 2's completment)
+    parameter int unsigned ZERO_LEVEL     = 0,
+    parameter int unsigned USE_DELAY_LINE = 0 
 )
 (
-    input  adc_clk_in,
+    input  clk_adc,
-    input  adc_rst,
+    input  rst_adc,
-
+    input  clk_dac,
-    input  dac_clk_in,
+    input  rst_dac,
-    input  dac_rst,
+    input  start,
-
+    input  out_of_range,
-    input  dac_start,
-
     input  [31:0]                 pulse_width,
-    input  [31:0]                 pulse_period,
+    input  [31:0]                 pulse_period, // DAC counter limit
     input  [DAC_DATA_WIDTH-1:0]   pulse_height,
     input  [15:0]                 pulse_num,
-    input  [31:0]                 smp_num,
+    input  [31:0]                 smp_num,      // ADC counter limit
-
+    output [ADC_DATA_WIDTH*PACK_FACTOR-1:0] m_axis_tdata,
-    output logic [ADC_DATA_WIDTH*PACK_FACTOR-1:0] m_axis_tdata,
+    output                                  m_axis_tvalid
-    output logic                                  m_axis_tvalid
 );
 
     //------------------------------------------------------------
     // Internal signals
     //------------------------------------------------------------
+    wire dac_done, dac_request, adc_done, adc_request;
+    wire [DAC_DATA_WIDTH-1:0] dac_signal;
+    wire [ADC_DATA_WIDTH-1:0] internal_wire_signal; 
+    wire [ADC_DATA_WIDTH-1:0] adc_signal;
 
-   (* MARK_DEBUG="true" *) logic sample_req;
+    // 1. Адаптация разрядности и «заземление» лишних бит
-   (* MARK_DEBUG="true" *) logic sample_req_sync1;
+    generate
-   (* MARK_DEBUG="true" *) logic sample_req_sync2;
+        if (ADC_DATA_WIDTH > DAC_DATA_WIDTH) begin : g_pad_zeros
-   (* MARK_DEBUG="true" *) logic sample_req_sync3;
+            // АЦП шире ЦАП: добиваем нулями старшие биты
+            assign internal_wire_signal = { {(ADC_DATA_WIDTH - DAC_DATA_WIDTH){1'b0}}, dac_signal };
+        end
+        else if (ADC_DATA_WIDTH < DAC_DATA_WIDTH) begin : g_truncate
+            // ЦАП шире АЦП (например, 14 -> 12): забираем младшие биты
+            assign internal_wire_signal = dac_signal[DAC_DATA_WIDTH-1:DAC_DATA_WIDTH-ADC_DATA_WIDTH];
+//            (* mark_debug = "true" *) wire dummy;
+//            assign dummy = ^dac_signal;
+        end
+        else begin : g_match
+            // Разрядности равны
+            assign internal_wire_signal = dac_signal;
+        end
+    endgenerate
 
-   (* MARK_DEBUG="true" *) logic sample_done;
+    generate
-   (* MARK_DEBUG="true" *) logic sample_done_sync1;
+        if (USE_DELAY_LINE > 0) begin : g_delay_line
-   (* MARK_DEBUG="true" *) logic sample_done_sync2;
+            localparam int DELAY_LENGTH = USE_DELAY_LINE;
-   (* MARK_DEBUG="true" *) logic sample_done_sync3;
+            // Двумерный массив для линии задержки
-
+            logic [DELAY_LENGTH-1:0][ADC_DATA_WIDTH-1:0] signal_delay_line;
-   (* MARK_DEBUG="true" *) logic pulse;
+            
-   (* MARK_DEBUG="true" *) logic [DAC_DATA_WIDTH-1:0] pulse_height_out;
+            always_ff @(posedge clk_dac) begin
-
+                signal_delay_line[0] <= internal_wire_signal;
-    //------------------------------------------------------------
+                for (int i = 0; i < DELAY_LENGTH-1; i++) begin
-    // Simple DAC -> ADC test source
+                    signal_delay_line[i+1] <= signal_delay_line[i];
-    //
+                end
-    // generator output is directly connected to sampler input
+            end
-    // with width truncation:
+            
-    //
+            // ИСПРАВЛЕНО: читаем из последнего элемента массива
-    // pulse_height_out[13:0] -> data_in[11:0]
+            assign adc_signal = signal_delay_line[DELAY_LENGTH-1];
-    //------------------------------------------------------------
+        end 
-  (* MARK_DEBUG="true" *)  logic [ADC_DATA_WIDTH-1:0] data_in;
+        else begin : g_no_delay
-  (* MARK_DEBUG="true" *)  logic out_of_range;
+            assign adc_signal = internal_wire_signal;
-
+        end
-    assign data_in      = pulse_height_out[ADC_DATA_WIDTH-1:0];
+    endgenerate
-    assign out_of_range = 1'b0;
 
     //------------------------------------------------------------
     // DAC -> ADC CDC
     //------------------------------------------------------------
-    always_ff @(posedge adc_clk_in or posedge adc_rst) begin
+    logic [2:0] stretch;    // 125/65~=2. Чтобы поймать единичный импульс, растянем его во времени
-        if (adc_rst) begin
+    logic [1:0] sync_DA;
-            sample_req <= 1'b0;
+    wire        dac_done_stretched;
-            sample_req_sync2  <= 1'b0;
+    
-            sample_req_sync3 <= 1'b0;
+    always_ff @(posedge clk_dac or posedge rst_dac)
-        end
+    begin
+        if (rst_dac)
+            stretch <= 0;
         else begin
-            sample_req_sync2 <= sample_req_sync1;
+            stretch[0] <= dac_done;
-            sample_req_sync3  <= sample_req_sync2;
+            stretch[1] <= stretch[0];
-            sample_req <= sample_req_sync3;
+            stretch[2] <= stretch[1];
         end
     end
+    assign dac_done_stretched = |stretch;
+
+    always_ff @(posedge clk_adc or posedge rst_adc) begin
+        if (rst_adc)
+            sync_DA <= 0;
+        else begin
+            sync_DA[0] <= dac_done_stretched;
+            sync_DA[1] <= sync_DA[0];
+        end
+    end
+    assign adc_request = sync_DA[1];
 
     //------------------------------------------------------------
     // ADC -> DAC CDC
     //------------------------------------------------------------
-    always_ff @(posedge dac_clk_in or posedge dac_rst) begin
+    logic [1:0] sync_AD;
-        if (dac_rst) begin
+
-            sample_done <= 1'b0;
+    always_ff @(posedge clk_dac or posedge rst_dac) begin
-            sample_done_sync2 <= 1'b0;
+        if (rst_dac)
-            sample_done_sync3 <= 1'b0;
+            sync_AD <= 0;
-        end
         else begin
-            sample_done_sync2 <= sample_done_sync1;
+            sync_AD[0] <= adc_done;
-            sample_done_sync3 <= sample_done_sync2;
+            sync_AD[1] <= sync_AD[0];
-            sample_done <= sample_done_sync3;
         end
     end
+    assign dac_request = sync_AD[1];
 
     //------------------------------------------------------------
     // Generator
     //------------------------------------------------------------
     generator #(
-        .DATA_WIDTH(DAC_DATA_WIDTH)
+        .DATA_WIDTH(DAC_DATA_WIDTH),
+        .ZERO_LEVEL(ZERO_LEVEL)
     ) generator_inst (
-        .clk_in(dac_clk_in),
+        .clk_dac(clk_dac),
-        .rst(dac_rst),
+        .rst(rst_dac),
-        .start(dac_start),
+        .start(start),
-
         .pulse_width(pulse_width),
         .pulse_period(pulse_period),
         .pulse_height(pulse_height),
         .pulse_num(pulse_num),
-
+        .dac_out(dac_signal),
-        .sample_done(sample_done),
+        .request(dac_request),
-
+        .done(dac_done)
-        .pulse(pulse),
-        .pulse_height_out(pulse_height_out),
-        .sample_req(sample_req_sync1)
     );
 
     //------------------------------------------------------------
@@ -119,18 +143,15 @@ module sync_top
         .PACK_FACTOR(PACK_FACTOR),
         .PROCESS_MODE(PROCESS_MODE)
     ) sampler_inst (
-        .clk_in(adc_clk_in),
+        .clk_in(clk_adc),
-        .rst(adc_rst),
+        .rst(rst_adc),
-
+        .data_in(adc_signal),
-        .data_in(data_in),
         .out_of_range(out_of_range),
-
         .smp_num(smp_num),
-        .sample_req(sample_req),
-
         .m_axis_tdata(m_axis_tdata),
         .m_axis_tvalid(m_axis_tvalid),
-        .sample_done(sample_done_sync1)
+        .request(adc_request),
+        .done(adc_done)
     );
 
 endmodule

designs/adc_dac_synchoronizer/tb_sync_top.sv

@@ -2,39 +2,50 @@
 
 module tb_top;
 
-    localparam DAC_DATA_WIDTH = 14;
+    //------------------------------------------------------------
-    localparam ADC_DATA_WIDTH = 12;
+    // Параметры
-    localparam PACK_FACTOR    = 1;
+    //------------------------------------------------------------
-    localparam PROCESS_MODE   = 0;
+    parameter string ZERO_LEVEL_PARAM = "logic"; // "logic" VS "true"
+    parameter VERBOSE = 1;
+    
+    localparam DAC_DATA_WIDTH       = 14;
+    localparam ADC_DATA_WIDTH       = 12;
+    localparam PACK_FACTOR          = 1;
+    localparam PROCESS_MODE         = 0;
+    localparam CLK_DAC_PERIOD       = 8;
+    localparam CLK_ADC_PERIOD       = 15.385;
+    localparam USE_DELAY_LINE       = 0;
+    localparam LOGIC_ZERO_LEVEL     = 0; // DAC -5V for logic zero
+    localparam VOLTAGE_ZERO_LEVEL   = 2**(DAC_DATA_WIDTH-1); // DAC 0V for logic zero
+    localparam ZERO_LEVEL           = (ZERO_LEVEL_PARAM == "logic") ? LOGIC_ZERO_LEVEL : VOLTAGE_ZERO_LEVEL;
+
+    localparam CLOCK_DEVIATION      = 3; // Maximum clock deviation of pulse stats
 
     //------------------------------------------------------------
-    // clocks / reset
+    // Тактовые сигналы и сброс
     //------------------------------------------------------------
-    logic adc_clk_in;
+    logic clk_dac;
-    logic adc_rst;
+    logic rst_dac;
-
+    logic clk_adc;
-    logic dac_clk_in;
+    logic rst_adc;
-    logic dac_rst;
-
     //------------------------------------------------------------
-    // control
+    // Управление и конфиг
     //------------------------------------------------------------
     logic dac_start;
-
+    logic [31:0]                pulse_width;
-    logic [31:0] pulse_width;
+    logic [31:0]                pulse_period;
-    logic [31:0] pulse_period;
+    logic [DAC_DATA_WIDTH-1:0]  pulse_height;
-    logic [DAC_DATA_WIDTH-1:0] pulse_height;
+    logic [15:0]                pulse_num;
-    logic [15:0] pulse_num;
+    logic [31:0]                smp_num;
-    logic [31:0] smp_num;
-
     //------------------------------------------------------------
-    // outputs
+    // Входы
     //------------------------------------------------------------
-    logic [ADC_DATA_WIDTH*PACK_FACTOR-1:0] m_axis_tdata;
+    reg out_of_range;
-    logic                                  m_axis_tvalid;
+    //------------------------------------------------------------
-
+    // Выходы
-    integer valid_count;
+    //------------------------------------------------------------
-
+    wire [ADC_DATA_WIDTH*PACK_FACTOR-1:0] m_axis_tdata;
+    wire                                  m_axis_tvalid;
     //------------------------------------------------------------
     // DUT
     //------------------------------------------------------------
@@ -42,127 +53,521 @@ module tb_top;
         .DAC_DATA_WIDTH(DAC_DATA_WIDTH),
         .ADC_DATA_WIDTH(ADC_DATA_WIDTH),
         .PACK_FACTOR(PACK_FACTOR),
-        .PROCESS_MODE(PROCESS_MODE)
+        .PROCESS_MODE(PROCESS_MODE),
+        .ZERO_LEVEL(ZERO_LEVEL),
+        .USE_DELAY_LINE(USE_DELAY_LINE)
     ) dut (
-        .adc_clk_in(adc_clk_in),
+        .clk_adc(clk_adc),
-        .adc_rst(adc_rst),
+        .clk_dac(clk_dac),
-
+        .rst_adc(rst_adc),
-        .dac_clk_in(dac_clk_in),
+        .rst_dac(rst_dac),
-        .dac_rst(dac_rst),
+        .start(dac_start),
-
-        .dac_start(dac_start),
-
         .pulse_width(pulse_width),
         .pulse_period(pulse_period),
         .pulse_height(pulse_height),
         .pulse_num(pulse_num),
         .smp_num(smp_num),
-
         .m_axis_tdata(m_axis_tdata),
-        .m_axis_tvalid(m_axis_tvalid)
+        .m_axis_tvalid(m_axis_tvalid),
+        .out_of_range(out_of_range)
     );
 
-    //------------------------------------------------------------
+    // Тактовые сигналы
-    // ADC clock
-    //------------------------------------------------------------
     initial begin
-        adc_clk_in = 1'b0;
+        clk_adc = 0;
-        forever #5 adc_clk_in = ~adc_clk_in;   // 100 MHz
+        forever #(CLK_ADC_PERIOD/2) clk_adc = ~clk_adc;
+    end
+    initial begin
+        clk_dac = 0;
+        forever #(CLK_DAC_PERIOD/2) clk_dac = ~clk_dac;
     end
 
-    //------------------------------------------------------------
+    // === Таски для тестирования ===
-    // DAC clock
+    // Функция модуля
-    //------------------------------------------------------------
+    function automatic real fabs(real val);
-    initial begin
+        return (val < 0.0) ? -val : val;
-        dac_clk_in = 1'b0;
+    endfunction
-        forever #8 dac_clk_in = ~dac_clk_in;   // slower domain
-    end
 
-    //------------------------------------------------------------
+    `define MIN(x, y) (((x) < (y)) ? (x) : (y))
-    // monitor output stream
-    //------------------------------------------------------------
-    always @(posedge adc_clk_in) begin
-        if (m_axis_tvalid) begin
-            valid_count = valid_count + 1;
 
-            $display("[%0t] VALID: data=%0d",
+    // Таска сброса DAC DUT
-                     $time,
+    task automatic reset_dut_dac(
-                     m_axis_tdata);
+        input int rst_duration    // сколько тактов держать сброс
+    );
+        @(negedge clk_dac);
+        rst_dac <= 1;
+        repeat(rst_duration) @(negedge clk_dac);
+        rst_dac <= 0;
+    endtask
+
+    // Таска сброса ADC DUT
+    task automatic reset_dut_adc(
+        input int rst_duration    // сколько тактов держать сброс
+    );
+        @(negedge clk_adc);
+        rst_adc <= 1;
+        repeat(rst_duration) @(negedge clk_adc);
+        rst_adc <= 0;
+    endtask
+
+    // Таска запуска DUT
+    task automatic start_dut(
+        input int start_duration    // сколько тактов держать импульс
+    );
+        @(negedge clk_dac); // to make signal stable
+        dac_start <= 1;
+        repeat(start_duration) @(negedge clk_dac);
+        dac_start <= 0;
+    endtask
+
+    // Таска конфигурации DUT
+    task automatic set_config(
+        input logic [31:0]                  w,  // ширина импульса
+        input logic [31:0]                  p,  // период импульса
+        input logic [15:0]                  n,  // количество импульсов
+        input logic [DAC_DATA_WIDTH-1:0]    h,  // высота импульса
+        input logic [31:0]                  sn  // число сэмплов
+    );
+        // Задаем конфигурационные регистры
+        pulse_width  <= w;
+        pulse_period <= p;
+        pulse_num    <= n;
+        pulse_height <= h;
+        smp_num      <= sn;
+    endtask
+    
+    // Основная таска проверки DUT
+    task automatic run_test_case(
+        input int pulse_width,
+        input int pulse_period,
+        input int pulse_height,
+        input int pulse_num,
+        input int sample_num,
+        input bit skip_reset,
+        input bit randomize_start_timing,
+        input bit out_of_range_val,
+        input bit randomize_out_of_range
+    );
+        int error_flag = 0;
+        int start_hold_time = 1;
+        realtime sync_start_time, pulse_start_time, pulse_update_val_time;
+        realtime sync_time_stats[$], pulse_width_time_stats[$], pulse_period_time_stats[$], pulse_delay_time_stats[$];
+        realtime avearge_pulse_delay, average_pulse_width, average_pulse_period, average_sync_time;
+
+        out_of_range = out_of_range_val;
+
+        if (VERBOSE >= 2) begin
+            $display("[TB] -run_test_case- Starting test case");
         end
-    end
 
-    //------------------------------------------------------------
+        if (randomize_out_of_range)
-    // test
+            fork
-    //------------------------------------------------------------
+                begin : randomize_out_of_range_proc
+                    forever begin
+                        @(posedge clk_adc);
+                        out_of_range = $urandom_range(0, 1);
+                    end
+                end
+            join_none
+
+        if (!skip_reset) 
+            fork
+                reset_dut_adc(1);
+                reset_dut_dac(1);
+            join
+
+        set_config(
+            .w(pulse_width),
+            .p(pulse_period),
+            .n(pulse_num),
+            .h(pulse_height),
+            .sn(sample_num)
+        );
+        @(posedge clk_dac);
+        @(posedge clk_dac);
+
+        if (randomize_start_timing)
+            start_hold_time = $urandom_range(1, 15);
+        fork    // warning: check not forever
+            start_dut(start_hold_time);
+            begin
+                @(posedge clk_dac);
+                //  старт первой синхронизации
+                sync_start_time = $realtime;
+            end
+        join_none
+
+        if (VERBOSE >= 2) begin
+            $display("[TB] -run_test_case- Starting pulse generation");
+        end
+
+        for (int i = 0; i < pulse_num; i++) begin
+            if (VERBOSE >= 3) begin
+                $display("[TB] -run_test_case- Start sync for pulse #%d", i);
+            end
+            @(posedge m_axis_tvalid);
+            if (VERBOSE >= 3) begin
+                $display("[TB] -run_test_case- Found valid pulse response data positive front");
+            end
+            // Старт цикла. Завершение синхронизации
+            sync_time_stats.push_back($realtime - sync_start_time);
+            pulse_start_time = $realtime;
+            
+            fork
+                // Поток будет запущен для ненулевых импульсов и гарантированно завершится как только зафиксирует статистику импульса
+                // Начало импульса
+                if (pulse_height != ZERO_LEVEL && pulse_width != 0) begin
+                    if (VERBOSE >= 4) begin
+                        $display("[TB] -run_test_case- Wait until pulse become high");
+                    end
+                    wait(m_axis_tdata != ZERO_LEVEL);
+                    // Фактическое начало импульса. Поступление высокого уровня
+                    pulse_update_val_time = $realtime;
+                    pulse_delay_time_stats.push_back(pulse_update_val_time - pulse_start_time);
+                    
+                    // Проверим что высота импульса совпала с заданной. Т.к. OTR != 0 влияет на выходные данные сэмплера, то не будем проверять такие случаи.
+                    @(posedge clk_adc);
+                    #1.5;   //  Ожидание завершения переходных процессов
+                    // Будем считать что из-за OTR данные изменились (по условию OTR + MSB), проверка пропускается, т.к. сложно понять точное значение OTR в момент обработки данных от tdata
+                    if (m_axis_tdata != (pulse_height >> 2) && (randomize_out_of_range || out_of_range_val)) begin
+                        $display("[ERROR] -run_test_case- Wrong pulse height: %d. Must be: %d", m_axis_tdata, pulse_height >> 2);
+                        $finish;
+                    end
+                    
+                    if (VERBOSE >= 4) begin
+                        $display("[TB] -run_test_case- Wait until pulse become low");
+                    end
+                    wait(m_axis_tdata == ZERO_LEVEL);
+                    pulse_width_time_stats.push_back($realtime - pulse_update_val_time);
+                end
+                // Конец импульса
+            join_none
+            
+            @(negedge m_axis_tvalid);
+            if (VERBOSE >= 3) begin
+                $display("[TB] -run_test_case- Found valid pulse response data negative front");
+            end
+            // Завершение цикла. Старт синхронизации
+            pulse_period_time_stats.push_back($realtime - pulse_start_time);
+            sync_start_time = $realtime;
+        end
+
+        if (VERBOSE >= 2) begin
+            $display("[TB] -run_test_case- Stop pulse generation");
+        end
+
+        fork    //  Проверка с таймаутом на лишние циклы
+            @(posedge m_axis_tvalid);
+            repeat(30) @(posedge clk_adc);
+        join_any
+        if (m_axis_tvalid == 1) begin
+            $display("[ERROR] -run_test_case- Extra pulse cycle num. More than must be.");
+            $finish;
+        end
+
+        if (VERBOSE >= 2) begin
+            $display("[TB] -run_test_case- Exit waiting via timeout");
+        end
+
+        if (randomize_out_of_range) begin
+            disable randomize_out_of_range_proc;
+            if (VERBOSE >= 2) begin
+                $display("[TB] -run_test_case- Stop randomize_out_of_range_proc");
+            end
+        end
+        out_of_range = 0;
+
+        // Проверка по статистике. Подсчет средних значений
+        if (pulse_delay_time_stats.size() != pulse_num && pulse_height != ZERO_LEVEL && pulse_width != 0 && !(randomize_out_of_range || out_of_range_val)) begin //  Detected with pulse level. Skip if pulse level undetectable
+            $display("[ERROR] -run_test_case- Size of pulse_delay_time_stats samples not equal to pulse_num: %d VS %d", pulse_delay_time_stats.size(), pulse_num);
+            $finish;
+        end
+        if (pulse_width_time_stats.size() != pulse_num && pulse_height != ZERO_LEVEL && pulse_width != 0 && !(randomize_out_of_range || out_of_range_val)) begin //  Detected with pulse level. Skip if pulse level undetectable
+            $display("[ERROR] -run_test_case- Size of pulse_width_time_stats samples not equal to pulse_num: %d VS %d", pulse_width_time_stats.size(), pulse_num);
+            $finish;
+        end
+        if (pulse_period_time_stats.size() != pulse_num) begin
+            $display("[ERROR] -run_test_case- Size of pulse_period_time_stats samples not equal to pulse_num: %d VS %d", pulse_period_time_stats.size(), pulse_num);
+            $finish;
+        end
+        if (sync_time_stats.size() != pulse_num) begin
+            $display("[ERROR] -run_test_case- Size of sync_time_stats samples not equal to pulse_num: %d VS %d", sync_time_stats.size(), pulse_num);
+            $finish;
+        end
+
+        avearge_pulse_delay = 0;
+        foreach (pulse_delay_time_stats[i])
+            avearge_pulse_delay += pulse_delay_time_stats[i];
+        avearge_pulse_delay /= pulse_num;
+
+        average_pulse_width = 0;
+        foreach (pulse_width_time_stats[i])
+            average_pulse_width += pulse_width_time_stats[i];
+        average_pulse_width /= pulse_num;
+
+        average_pulse_period = 0;
+        foreach (pulse_period_time_stats[i])
+            average_pulse_period += pulse_period_time_stats[i];
+        average_pulse_period /= pulse_num;
+
+        average_sync_time = 0;
+        foreach (sync_time_stats[i])
+            average_sync_time += sync_time_stats[i];
+        average_sync_time /= pulse_num;
+        
+        if (VERBOSE >= 1) begin
+            $display("[TB] -run_test_case- Pulse test stats:\n\tavearge_pulse_delay: %0.3f\n\taverage_pulse_width: %0.3f\n\taverage_pulse_period: %0.3f\n\taverage_sync_time: %0.3f", avearge_pulse_delay, average_pulse_width, average_pulse_period, average_sync_time);
+        end
+
+        if (avearge_pulse_delay > CLOCK_DEVIATION * CLK_ADC_PERIOD) begin
+            $display("[ERROR] -run_test_case- avearge_pulse_delay too big: %0.3f", avearge_pulse_delay);
+            error_flag = 1;
+        end
+        if (fabs(average_pulse_width - pulse_width * CLK_DAC_PERIOD * (pulse_height != ZERO_LEVEL)) > CLOCK_DEVIATION * CLK_ADC_PERIOD && sample_num * CLK_ADC_PERIOD >= pulse_width * CLK_DAC_PERIOD) begin
+            $display("[ERROR] -run_test_case- average_pulse_width deviates from choosen pulse_width. Deviation: %0.3f > %0.3f ns", fabs(average_pulse_width - pulse_width * CLK_DAC_PERIOD), CLOCK_DEVIATION * CLK_ADC_PERIOD);
+            error_flag = 1;
+        end
+        if (fabs(average_pulse_period - sample_num * CLK_ADC_PERIOD) > CLOCK_DEVIATION * CLK_ADC_PERIOD) begin
+            $display("[ERROR] -run_test_case- average_pulse_period deviates from choosen pulse_width. Deviation: %0.3f > %0.3f ns", fabs(average_pulse_period - sample_num * CLK_ADC_PERIOD), CLOCK_DEVIATION * CLK_ADC_PERIOD);
+            error_flag = 1;
+        end
+
+        if (VERBOSE >= 2) begin
+            $display("[TB] -run_test_case- Pass error processing");
+        end
+
+        if (error_flag)
+            $finish;
+
+        if (VERBOSE >= 2) begin
+            $display("[TB] -run_test_case- Passed checks");
+        end
+    endtask
+    // Таска 
+
+    // --- ОСНОВНОЙ ПРОЦЕСС ТЕСТИРОВАНИЯ ---
     initial begin
+        $display("[TB] Tests start");
 
-        adc_rst      = 1'b1;
+        // Инициализация
-        dac_rst      = 1'b1;
+        dac_start    = 0;
-
-        dac_start    = 1'b0;
-
         pulse_width  = 0;
         pulse_period = 0;
         pulse_height = 0;
         pulse_num    = 0;
         smp_num      = 0;
+        out_of_range = 0;
+        rst_adc      = 0;
+        rst_dac      = 0;
 
-        valid_count  = 0;
+        #100; // init
 
-        //--------------------------------------------------------
+        $display("[TB] Test 1. Simple test. (1/4)");
-        // reset
+        run_test_case(
-        //--------------------------------------------------------
+            .pulse_width(50),
-        repeat (10) @(posedge adc_clk_in);
+            .pulse_period(125),
-        repeat (10) @(posedge dac_clk_in);
+            .pulse_height(2**DAC_DATA_WIDTH-1),
+            .pulse_num(5),
+            .sample_num(65),
+            .skip_reset(0),
+            .randomize_start_timing(1),
+            .out_of_range_val(0),
+            .randomize_out_of_range(0)
+        );
+        $display("[TB] Test 1. Simple test. (2/4)");
+        run_test_case(
+            .pulse_width(25),
+            .pulse_period(125),
+            .pulse_height(2**(ADC_DATA_WIDTH-1)),
+            .pulse_num(10),
+            .sample_num(65),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(0),
+            .randomize_out_of_range(0)
+        );
+        $display("[TB] Test 1. Simple test. (3/4)");
+        run_test_case(
+            .pulse_width(10),
+            .pulse_period(50),
+            .pulse_height(ZERO_LEVEL),
+            .pulse_num(4),
+            .sample_num(25),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(0),
+            .randomize_out_of_range(0)
+        );
 
-        adc_rst = 1'b0;
+        $display("[TB] Test 1. Simple test. (4/4)");
-        dac_rst = 1'b0;
+        run_test_case(
+            .pulse_width(25),
+            .pulse_period(125),
+            .pulse_height(2**(DAC_DATA_WIDTH-1)),
+            .pulse_num(10),
+            .sample_num(65),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(0),
+            .randomize_out_of_range(0)
+        );
+        $display("[TB] Test 1 complete");
+        
+        $display("[TB] Test 2. Edge cases. Pulse width 0%%. (1/7)");
+        run_test_case(
+            .pulse_width(0),
+            .pulse_period(125),
+            .pulse_height(2**(ADC_DATA_WIDTH-1)),
+            .pulse_num(5),
+            .sample_num(65),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(0),
+            .randomize_out_of_range(0)
+        );
+        $display("[TB] Test 2. Edge cases. Pulse width 100%%. (2/7)");
+        run_test_case(
+            .pulse_width(10),
+            .pulse_period(10),
+            .pulse_height(2**(ADC_DATA_WIDTH-1)),
+            .pulse_num(5),
+            .sample_num(65),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(0),
+            .randomize_out_of_range(0)
+        );
+        $display("[TB] Test 2. Edge cases. Pulse height == ZERO_LEVEL. (3/7)");
+        run_test_case(
+            .pulse_width(10),
+            .pulse_period(125),
+            .pulse_height(ZERO_LEVEL),
+            .pulse_num(5),
+            .sample_num(65),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(0),
+            .randomize_out_of_range(0)
+        );
+        $display("[TB] Test 2. Edge cases. Pulse num == 0. (4/7)");
+        run_test_case(
+            .pulse_width(10),
+            .pulse_period(125),
+            .pulse_height(2**(ADC_DATA_WIDTH-3)),
+            .pulse_num(0),
+            .sample_num(65),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(0),
+            .randomize_out_of_range(0)
+        );
 
-        repeat (5) @(posedge dac_clk_in);
+        $display("[TB] Test 2. Edge cases. Sample num time << Pulse width time. (5/7)");
+        run_test_case(
+            .pulse_width(10),
+            .pulse_period(125),
+            .pulse_height(2**(ADC_DATA_WIDTH-1)),
+            .pulse_num(5),
+            .sample_num(2),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(0),
+            .randomize_out_of_range(0)
+        );
 
-        //--------------------------------------------------------
+        // Ожидание окончания работы генератора. Т.к. конец работы определяется по tvalid сэмплера, а он завершается сильно раньше. Чтобы не пропустить start следующей таски, ждем
-        // config
+        wait(dut.generator_inst.enable == 0);
-        //--------------------------------------------------------
+        #50;
-        pulse_width  = 32'd3;
-        pulse_period = 32'd8;
-        pulse_height = 14'd200;
-        pulse_num    = 16'd4;
-        smp_num      = 32'd8;
 
-        //--------------------------------------------------------
+        $display("[TB] Test 2. Edge cases. Sample num == 0. (6/7)");
-        // start
+        // Запустим в работу вручную, т.к. run_test_case обязательно ждет pulse num циклов. Детекция цикла производится по активности сэплера. Ее не должно быть при sample num = 0
-        //--------------------------------------------------------
+        set_config(
-        @(posedge dac_clk_in);
+            .w(10),
-        dac_start = 1'b1;
+            .p(125),
+            .h(2**(ADC_DATA_WIDTH-1)),
+            .n(5),
+            .sn(0)
+        );
+        start_dut(3);
+        fork
+            begin : wait_sampler_active_proc
+                @(posedge m_axis_tvalid);
+                $display("[ERROR] Sampler active with sample num == 0");
+                $finish;
+            end
+            begin
+                @(negedge dut.generator_inst.enable);
+            end
+        join_any
+        disable wait_sampler_active_proc;
+        repeat(30) @(posedge clk_adc);
+        
+        // Данный тест должен приводить к тому, что сэмплер будет давать крайние значения вместо заданного pulse height из-за OTR=1
+        // Дописать авто тест
+        $display("[TB] Test 2. Edge cases. OTR == 1. (7/7)");
+        run_test_case(
+            .pulse_width(10),
+            .pulse_period(125),
+            .pulse_height(10), // goes to 0x0..
+            .pulse_num(5),
+            .sample_num(65),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(1),
+            .randomize_out_of_range(0)
+        );
+        $display("[TB] Test 2. Edge cases. OTR == 1. (7-2/7)");
+        run_test_case(
+            .pulse_width(10),
+            .pulse_period(125),
+            .pulse_height(14'b11010000000000), // goes to 0xff..
+            .pulse_num(5),
+            .sample_num(65),
+            .skip_reset(1),
+            .randomize_start_timing(1),
+            .out_of_range_val(1),
+            .randomize_out_of_range(0)
+        );
+        $display("[TB] Test 2 complete");
 
-        @(posedge dac_clk_in);
+        $display("[TB] Test 3. Random tests");
-        dac_start = 1'b0;
+        for (int i = 0; i < 100; i++) begin
+            int r_w, r_p, r_n, r_h, r_sn;
+            bit r_skip, r_otr, r_otr_rand;
 
-        $display("==================================");
+            // Генерируем параметры
-        $display("TEST START");
+            r_p    = $urandom_range(50, 150);          // Период от 5 до 50
-        $display("==================================");
+            r_w    = $urandom_range(10, r_p);         // Ширина не больше периода
+            r_n    = $urandom_range(1, 10);          // Количество импульсов
+            r_h    = $urandom_range(0, 2**(`MIN(ADC_DATA_WIDTH, DAC_DATA_WIDTH))-1);       // Высота импульса
+            r_sn   = $urandom_range(2, 40);          // Число сэмплов
+            r_skip = $urandom_range(0, 1);           // Случайный сброс (0 - сброс, 1 - пропуск)
+            r_otr  = 0;           // Out Of Range стартовое значение
+            r_otr_rand = 0;       // Сделать OTR случайным
 
-        //--------------------------------------------------------
+            if (VERBOSE >= 1)
-        // wait
+                $display("[TB] --- Test #%0d (Config: W=%0d, P=%0d, N=%0d, H=%0d, SN=%0d, SkipReset=%0b) ---", 
-        //--------------------------------------------------------
+                        i+1, r_w, r_p, r_n, r_h, r_sn, r_skip);
-        repeat (600) @(posedge adc_clk_in);
+                
+            run_test_case(
+                .pulse_width(r_w),
+                .pulse_period(r_p),
+                .pulse_height(r_h),
+                .pulse_num(r_n),
+                .sample_num(r_sn),
+                .skip_reset(r_skip),
+                .randomize_start_timing(0),
+                .out_of_range_val(r_otr),
+                .randomize_out_of_range(r_otr_rand)
+            );
 
-        //--------------------------------------------------------
+            wait(dut.generator_inst.enable == 0);   //  Проверка на завершение работы
-        // check
+            #50;
-        //--------------------------------------------------------
-        if (valid_count > 0) begin
-            $display("==================================");
-            $display("TEST PASSED");
-            $display("valid_count = %0d", valid_count);
-            $display("==================================");
         end
-        else begin
+        $display("[TB] Test 3 complete");
-            $display("==================================");
+        
-            $display("TEST FAILED");
+        $display("[TB] ALL PASSED");
-            $display("No valid output detected");
+        $display("[TB] Maximum clock deviation of stats %0.2f", CLOCK_DEVIATION);
-            $display("==================================");
-        end
-
         $finish;
     end
 

designs/reflectometer_base/Makefile

@@ -10,13 +10,21 @@
 FPGA_PART = xc7a100tfgg484-2
 FPGA_TOP = reflectometer_top
 FPGA_ARCH = artix7
+SIM_TOP = reflectometer_tb
 
 RTL_DIR = ../../rtl
 
 
 include ../../scripts/vivado.mk
 
+
+INC_FILES += interfaces.svh
+
+TB_FILES  += reflectometer_tb.sv
 SYN_FILES += reflectometer.sv
+SYN_FILES += dac_model.sv
+SYN_FILES += adc_model.sv
+SYN_FILES += reflectometer_tb.sv
 SYN_FILES += $(sort $(shell find ../../rtl -type f \( -name '*.v' -o -name '*.sv' \)))
 
 XCI_FILES = $(sort $(shell find ../../rtl/ethernet-udp/src -type f -name '*.xci'))

designs/reflectometer_base/README.md

@@ -86,15 +86,15 @@
 
 Система работает в нескольких тактовых доменах:
 
-- Ethernet RX (`gmii_rx_clk`)
+- Ethernet RX (`clk_axis_control`)
-- Ethernet TX (`gmii_tx_clk`)
+- Ethernet TX (`clk_axis_accumulator`)
-- DAC (`dac_clk`)
+- DAC (`clk_generator`)
-- ADC (`adc_clk`)
+- ADC (`clk_sampler`)
 
 Для корректной синхронизации между DAC и ADC используются специальные CDC-регистры для сигналов:
 
-- `sample_req`
+- `done`
-- `sample_done`
+- `request`
 
 Это обеспечивает безопасную передачу handshake-сигналов между тактовыми доменами.
 
@@ -110,8 +110,8 @@
 
 Типовые значения:
 
-- `8192` — середина диапазона ЦАП
+- `8192` — середина диапазона ЦАП (0V)
-- `0` — нулевой уровень
+- `0` — нулевой уровень (-5V)
 
 ### ADC_DATA_WIDTH
 Ширина входных данных, получаемых с АЦП.
@@ -143,3 +143,5 @@
 ```make all``` - собрать все до битстрима
 
 ```make vivado``` - открыть проект в Vivado
+
+```make sim``` - симуляция и верификация проекта

designs/reflectometer_base/adc_model.sv

@@ -0,0 +1,59 @@
+// AN9238 virtual ADC model (1 port)
+
+module virtual_adc_model #(
+    parameter int unsigned ADC_DATA_WIDTH = 12,
+
+    // Bipolar input range: +/- VOLTAGE_RANGE
+    parameter real VOLTAGE_RANGE = 1.0,
+
+    // Analog input correction
+    parameter real VOLTAGE_GAIN  = 0.2,
+    parameter real GROUND_BIAS   = 0.0,
+
+    // ADC timing parameters
+    parameter time CONVERSION_DELAY = 250ps
+)(
+    input  logic                         clk_i,
+    input  real                          voltage_i,
+
+    output logic                         otr_o,
+    output logic [ADC_DATA_WIDTH-1:0]    data_o
+);
+
+    localparam int unsigned ZERO_CODE = (1 << (ADC_DATA_WIDTH - 1));
+    localparam real VOLTAGE_STEP = (2 * VOLTAGE_RANGE) / real'((1 << ADC_DATA_WIDTH) - 1);
+
+    real voltage_corrected;
+
+    //------------------------------------------------------------
+    // Convert analog voltage to ADC code
+    //------------------------------------------------------------
+    function automatic logic [ADC_DATA_WIDTH-1:0] voltage_to_code( input real voltage );
+        if (voltage <= -VOLTAGE_RANGE) return '0;
+        if (voltage >=  VOLTAGE_RANGE) return {ADC_DATA_WIDTH{1'b1}};
+        return $rtoi(voltage / VOLTAGE_STEP + real'((ZERO_CODE)) + 0.5);
+    endfunction
+
+    function automatic logic range_check( input real voltage );
+        real v_abs = (voltage < 0.0) ? -voltage : voltage;
+        return v_abs >= VOLTAGE_RANGE;
+    endfunction
+
+    //------------------------------------------------------------
+    // Initial state
+    //------------------------------------------------------------
+    initial begin
+        data_o = ZERO_CODE; // 0V
+        otr_o  = 0;
+    end
+
+    //------------------------------------------------------------
+    // Update analog output
+    //------------------------------------------------------------
+    always @(posedge clk_i) begin
+        voltage_corrected = (voltage_i - GROUND_BIAS) * VOLTAGE_GAIN;
+        data_o  <= #(CONVERSION_DELAY) voltage_to_code(voltage_corrected);
+        otr_o   <= #(CONVERSION_DELAY) range_check(voltage_corrected);
+    end
+
+endmodule

designs/reflectometer_base/dac_model.sv

@@ -0,0 +1,58 @@
+// AN9767 model (1 port)
+
+module virtual_dac_model #(
+    parameter int unsigned DAC_DATA_WIDTH = 14,
+
+    // Bipolar output range: +/- VOLTAGE_RANGE
+    parameter real VOLTAGE_RANGE = 5.0,
+
+    // Analog output correction
+    parameter real VOLTAGE_GAIN  = 1.0,
+    parameter real GROUND_BIAS   = 0.0,
+
+    // DAC timing parameters
+    parameter time TRANSMISSION_DELAY = 150ps,
+    parameter time CONVERSION_DELAY   = 150ps
+)(
+    input  logic                      clk_i,
+    input  logic                      wrt_i,
+    input  logic [DAC_DATA_WIDTH-1:0] data_i,
+
+    output real                       voltage_o
+);
+
+    localparam int unsigned ZERO_CODE = (1 << (DAC_DATA_WIDTH - 1));
+    localparam real VOLTAGE_STEP = (2 * VOLTAGE_RANGE) / real'((1 << DAC_DATA_WIDTH) - 1);
+
+    logic [DAC_DATA_WIDTH-1:0] dac_code;
+
+    //------------------------------------------------------------
+    // Convert DAC code to analog voltage
+    //------------------------------------------------------------
+    function automatic real code_to_voltage( input logic [DAC_DATA_WIDTH-1:0] code);
+        return (int'(code) - int'(ZERO_CODE)) * VOLTAGE_STEP;
+    endfunction
+
+    //------------------------------------------------------------
+    // Initial state
+    //------------------------------------------------------------
+    initial begin
+        dac_code  = '0;
+        voltage_o = code_to_voltage('0) * VOLTAGE_GAIN + GROUND_BIAS;
+    end
+
+    //------------------------------------------------------------
+    // Latch new DAC code
+    //------------------------------------------------------------
+    always @(posedge wrt_i) begin
+        dac_code <= #(TRANSMISSION_DELAY) data_i;
+    end
+
+    //------------------------------------------------------------
+    // Update analog output
+    //------------------------------------------------------------
+    always @(posedge clk_i) begin
+        voltage_o <= #(CONVERSION_DELAY) code_to_voltage(dac_code) * VOLTAGE_GAIN + GROUND_BIAS;
+    end
+
+endmodule

designs/reflectometer_base/debug.xdc

@@ -1 +1,9 @@
-set_clock_groups -name ASYNC_UDP_CTRL -asynchronous -group [get_clocks rgmii_rxc] -group [get_clocks clk_out1_clk_wiz_ctrl_inst] -group [get_clocks clk_out2_clk_wiz_ctrl_inst]
+# Primary clocks
+create_clock -name ref_clock    -period 5.000  [get_ports clk_in]
+create_clock -name phy_rx_clock -period 8.000  [get_ports clk_m_axis]
+create_clock -name phy_tx_clock -period 8.000  [get_ports clk_s_axis]
+
+set clk_125_name [get_clocks -of_objects [get_pins generator_inst/clk_dac_125]]
+set clk_65_name  [get_clocks -of_objects [get_pins accumulator_top_dut/clk_adc_65]]
+
+set_clock_groups -asynchronous -group $clk_125_name -group $clk_65_name

designs/reflectometer_base/interfaces.svh

@@ -0,0 +1,130 @@
+`ifndef AXIS_INTERFACE_SVH
+`define AXIS_INTERFACE_SVH
+
+interface axis_if #(
+    parameter int DATA_WIDTH = 8
+)(
+    input logic clk,
+    input logic rst_n
+);
+
+    // Сигналы шины AXI-Stream
+    logic [DATA_WIDTH-1:0] tdata;
+    logic tvalid;
+    logic tlast;
+    logic tready;
+
+    initial begin // Default values
+        tdata  = 'x;
+        tvalid = 1'b0;
+        tlast  = 1'b0;
+        tready = 1'b0;
+    end
+
+    // Master Clocking Block (для отправки данных из TB)
+    clocking drv_cb @(posedge clk);
+        default input #1step output #100ps;
+        output tdata, tvalid, tlast;
+        input  tready;
+    endclocking
+
+    // Slave Clocking Block (для приема данных в TB с генерацией tready)
+    clocking slv_cb @(posedge clk);
+        default input #1step output #100ps;
+        input  tdata, tvalid, tlast;
+        output tready;
+    endclocking
+
+    // Passive Monitor Clocking Block
+    clocking mon_cb @(posedge clk);
+        default input #1step;
+        input tdata, tvalid, tlast, tready;
+    endclocking
+
+    modport master (output tdata, tvalid, tlast, input  tready);
+    modport slave  (input  tdata, tvalid, tlast, output tready);
+    
+    // Модпорт для тестбенча с тасками
+    modport tb (
+        clocking drv_cb,
+        clocking slv_cb,
+        clocking mon_cb,
+        import master_send,
+        import slave_recv,
+        import monitor_recv
+    );
+
+    // Отправка пакета (Тестбенч выступает как Master)
+    task automatic master_send(input logic [DATA_WIDTH-1:0] payload[]);
+        if (payload.size() == 0) return;
+
+        @(drv_cb);
+        
+        for (int i = 0; i < payload.size(); i++) begin
+            drv_cb.tdata  <= payload[i];
+            drv_cb.tvalid <= 1'b1;
+            drv_cb.tlast  <= (i == payload.size() - 1);
+        
+            forever begin // Ждем подтверждение от слейва пока не получим
+                @(drv_cb);
+                if (drv_cb.tready === 1'b1) begin
+                    break;
+                end
+            end
+        end
+        // Сбрасываем сигналы после отправки пакета
+        drv_cb.tvalid <= 1'b0;
+        drv_cb.tlast  <= 1'b0;
+        drv_cb.tdata  <= 'x;
+    endtask
+
+    // Прием пакета (Тестбенч выступает как Slave и управляет tready). Не применять если есть реальный Slave (его tready опустится насильно)
+    task automatic slave_recv(output logic [DATA_WIDTH-1:0] payload[]);
+        logic [DATA_WIDTH-1:0] local_queue[$]; // Внутри таски очередь использовать можно
+        
+        slv_cb.tready <= 1'b1; // Показываем, что готовы принимать
+        
+        forever begin
+            @(slv_cb);
+            if (slv_cb.tvalid === 1'b1) begin
+                local_queue.push_back(slv_cb.tdata);
+                if (slv_cb.tlast === 1'b1) begin
+                    break; // Пакет закончился
+                end
+            end
+        end
+        
+        slv_cb.tready <= 1'b0; // Снимаем готовность
+        
+        // Перекладываем из очереди в динамический массив
+        payload = new[local_queue.size()](local_queue);
+    endtask
+
+    // Прием пакета (Тестбенч выступает как пассивный наблюдатель без tready)
+    task automatic monitor_recv(output logic [DATA_WIDTH-1:0] payload[]);
+        logic [DATA_WIDTH-1:0] local_queue[$]; // Внутри таски очередь использовать можно
+        
+        forever begin
+            if (mon_cb.tready === 1'b1) begin
+                break; // Дождались слейва
+            end
+            @(slv_cb);
+        end
+        
+        forever begin
+            @(mon_cb);
+            if (mon_cb.tvalid === 1'b1) begin
+                local_queue.push_back(mon_cb.tdata);
+                if (mon_cb.tlast === 1'b1) begin
+                    break; // Пакет закончился
+                end
+            end
+        end
+        
+        // Перекладываем из очереди в динамический массив
+        payload = new[local_queue.size()](local_queue);
+    endtask
+
+endinterface
+
+`endif // AXIS_INTERFACE_SVH`

designs/reflectometer_base/ip/clk_wiz_ctrl_inst.xci

@@ -3,8 +3,8 @@
   "ip_inst": {
     "xci_name": "clk_wiz_ctrl_inst",
     "component_reference": "xilinx.com:ip:clk_wiz:6.0",
-    "ip_revision": "16",
+    "ip_revision": "17",
-    "gen_directory": "../../../../eth_generator_top.gen/sources_1/ip/clk_wiz_ctrl_inst",
+    "gen_directory": "../../../../reflectometer_top.gen/sources_1/ip/clk_wiz_ctrl_inst",
     "parameters": {
       "component_parameters": {
         "Component_Name": [ { "value": "clk_wiz_ctrl_inst", "resolve_type": "user", "usage": "all" } ],
@@ -31,7 +31,7 @@
         "USE_MIN_POWER": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "USE_DYN_PHASE_SHIFT": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "USE_DYN_RECONFIG": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "JITTER_SEL": [ { "value": "No_Jitter", "resolve_type": "user", "usage": "all" } ],
+        "JITTER_SEL": [ { "value": "Min_O_Jitter", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
         "PRIM_IN_FREQ": [ { "value": "200.000", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "PRIM_IN_TIMEPERIOD": [ { "value": "10.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "IN_FREQ_UNITS": [ { "value": "Units_MHz", "resolve_type": "user", "usage": "all" } ],
@@ -52,12 +52,12 @@
         "CLKIN2_JITTER_PS": [ { "value": "100.0", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT1_USED": [ { "value": "true", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLKOUT2_USED": [ { "value": "true", "value_src": "user", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "CLKOUT3_USED": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
+        "CLKOUT3_USED": [ { "value": "true", "value_src": "user", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "CLKOUT4_USED": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
+        "CLKOUT4_USED": [ { "value": "true", "value_src": "user", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLKOUT5_USED": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLKOUT6_USED": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLKOUT7_USED": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "NUM_OUT_CLKS": [ { "value": "2", "value_src": "user", "resolve_type": "user", "format": "long", "usage": "all" } ],
+        "NUM_OUT_CLKS": [ { "value": "4", "value_src": "user", "resolve_type": "user", "format": "long", "usage": "all" } ],
         "CLK_OUT1_USE_FINE_PS_GUI": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLK_OUT2_USE_FINE_PS_GUI": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLK_OUT3_USE_FINE_PS_GUI": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
@@ -65,11 +65,11 @@
         "CLK_OUT5_USE_FINE_PS_GUI": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLK_OUT6_USE_FINE_PS_GUI": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLK_OUT7_USE_FINE_PS_GUI": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "PRIMARY_PORT": [ { "value": "clk_in1", "resolve_type": "user", "usage": "all" } ],
+        "PRIMARY_PORT": [ { "value": "clk_200", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLK_OUT1_PORT": [ { "value": "clk_out1", "resolve_type": "user", "usage": "all" } ],
+        "CLK_OUT1_PORT": [ { "value": "clk_adc_65", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLK_OUT2_PORT": [ { "value": "clk_out2", "resolve_type": "user", "usage": "all" } ],
+        "CLK_OUT2_PORT": [ { "value": "clk_adc_65_180", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLK_OUT3_PORT": [ { "value": "clk_out3", "resolve_type": "user", "usage": "all" } ],
+        "CLK_OUT3_PORT": [ { "value": "clk_dac_125", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLK_OUT4_PORT": [ { "value": "clk_out4", "resolve_type": "user", "usage": "all" } ],
+        "CLK_OUT4_PORT": [ { "value": "clk_dac_125_180", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
         "CLK_OUT5_PORT": [ { "value": "clk_out5", "resolve_type": "user", "usage": "all" } ],
         "CLK_OUT6_PORT": [ { "value": "clk_out6", "resolve_type": "user", "usage": "all" } ],
         "CLK_OUT7_PORT": [ { "value": "clk_out7", "resolve_type": "user", "usage": "all" } ],
@@ -84,17 +84,17 @@
         "PSEN_PORT": [ { "value": "psen", "resolve_type": "user", "usage": "all" } ],
         "PSINCDEC_PORT": [ { "value": "psincdec", "resolve_type": "user", "usage": "all" } ],
         "PSDONE_PORT": [ { "value": "psdone", "resolve_type": "user", "usage": "all" } ],
-        "CLKOUT1_REQUESTED_OUT_FREQ": [ { "value": "125", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT1_REQUESTED_OUT_FREQ": [ { "value": "65", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT1_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT1_REQUESTED_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT2_REQUESTED_OUT_FREQ": [ { "value": "65.000", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT2_REQUESTED_OUT_FREQ": [ { "value": "65", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT2_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT2_REQUESTED_PHASE": [ { "value": "180", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT2_REQUESTED_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT3_REQUESTED_OUT_FREQ": [ { "value": "100.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT3_REQUESTED_OUT_FREQ": [ { "value": "125", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT3_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT3_REQUESTED_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT4_REQUESTED_OUT_FREQ": [ { "value": "100.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT4_REQUESTED_OUT_FREQ": [ { "value": "125", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT4_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT4_REQUESTED_PHASE": [ { "value": "180", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT4_REQUESTED_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT5_REQUESTED_OUT_FREQ": [ { "value": "100.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT5_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
@@ -115,14 +115,14 @@
         "CLKOUT6_MATCHED_ROUTING": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLKOUT7_MATCHED_ROUTING": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "PRIM_SOURCE": [ { "value": "Single_ended_clock_capable_pin", "resolve_type": "user", "usage": "all" } ],
-        "CLKOUT1_DRIVES": [ { "value": "BUFG", "resolve_type": "user", "usage": "all" } ],
+        "CLKOUT1_DRIVES": [ { "value": "BUFGCE", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLKOUT2_DRIVES": [ { "value": "BUFG", "resolve_type": "user", "usage": "all" } ],
+        "CLKOUT2_DRIVES": [ { "value": "BUFGCE", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLKOUT3_DRIVES": [ { "value": "BUFG", "resolve_type": "user", "usage": "all" } ],
+        "CLKOUT3_DRIVES": [ { "value": "BUFGCE", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLKOUT4_DRIVES": [ { "value": "BUFG", "resolve_type": "user", "usage": "all" } ],
+        "CLKOUT4_DRIVES": [ { "value": "BUFGCE", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLKOUT5_DRIVES": [ { "value": "BUFG", "resolve_type": "user", "usage": "all" } ],
+        "CLKOUT5_DRIVES": [ { "value": "BUFGCE", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLKOUT6_DRIVES": [ { "value": "BUFG", "resolve_type": "user", "usage": "all" } ],
+        "CLKOUT6_DRIVES": [ { "value": "BUFGCE", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "CLKOUT7_DRIVES": [ { "value": "BUFG", "resolve_type": "user", "usage": "all" } ],
+        "CLKOUT7_DRIVES": [ { "value": "BUFGCE", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "FEEDBACK_SOURCE": [ { "value": "FDBK_AUTO", "resolve_type": "user", "usage": "all" } ],
+        "FEEDBACK_SOURCE": [ { "value": "FDBK_AUTO", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
         "CLKFB_IN_SIGNALING": [ { "value": "SINGLE", "resolve_type": "user", "usage": "all" } ],
         "CLKFB_IN_PORT": [ { "value": "clkfb_in", "resolve_type": "user", "usage": "all" } ],
         "CLKFB_IN_P_PORT": [ { "value": "clkfb_in_p", "resolve_type": "user", "usage": "all" } ],
@@ -141,7 +141,7 @@
         "USE_CLK_VALID": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "USE_INCLK_STOPPED": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "USE_CLKFB_STOPPED": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "RESET_PORT": [ { "value": "reset", "resolve_type": "user", "usage": "all" } ],
+        "RESET_PORT": [ { "value": "resetn", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
         "LOCKED_PORT": [ { "value": "locked", "resolve_type": "user", "usage": "all" } ],
         "POWER_DOWN_PORT": [ { "value": "power_down", "resolve_type": "user", "usage": "all" } ],
         "CLK_VALID_PORT": [ { "value": "CLK_VALID", "resolve_type": "user", "usage": "all" } ],
@@ -154,34 +154,34 @@
         "SS_MOD_TIME": [ { "value": "0.004", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "OVERRIDE_MMCM": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "MMCM_NOTES": [ { "value": "None", "resolve_type": "user", "usage": "all" } ],
-        "MMCM_DIVCLK_DIVIDE": [ { "value": "4", "value_src": "user", "resolve_type": "user", "format": "long", "usage": "all" } ],
+        "MMCM_DIVCLK_DIVIDE": [ { "value": "5", "value_src": "user", "resolve_type": "user", "format": "long", "usage": "all" } ],
-        "MMCM_BANDWIDTH": [ { "value": "OPTIMIZED", "resolve_type": "user", "usage": "all" } ],
+        "MMCM_BANDWIDTH": [ { "value": "HIGH", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "MMCM_CLKFBOUT_MULT_F": [ { "value": "16.875", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "MMCM_CLKFBOUT_MULT_F": [ { "value": "34.125", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKFBOUT_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKFBOUT_USE_FINE_PS": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "MMCM_CLKIN1_PERIOD": [ { "value": "5.000", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "MMCM_CLKIN2_PERIOD": [ { "value": "10.0", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "MMCM_CLKIN2_PERIOD": [ { "value": "10.000", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKOUT4_CASCADE": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "MMCM_CLOCK_HOLD": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "MMCM_COMPENSATION": [ { "value": "ZHOLD", "resolve_type": "user", "usage": "all" } ],
         "MMCM_REF_JITTER1": [ { "value": "0.010", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_REF_JITTER2": [ { "value": "0.010", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_STARTUP_WAIT": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "MMCM_CLKOUT0_DIVIDE_F": [ { "value": "6.750", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "MMCM_CLKOUT0_DIVIDE_F": [ { "value": "21.000", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKOUT0_DUTY_CYCLE": [ { "value": "0.500", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKOUT0_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKOUT0_USE_FINE_PS": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "MMCM_CLKOUT1_DIVIDE": [ { "value": "13", "value_src": "user", "resolve_type": "user", "format": "long", "usage": "all" } ],
+        "MMCM_CLKOUT1_DIVIDE": [ { "value": "21", "value_src": "user", "resolve_type": "user", "format": "long", "usage": "all" } ],
         "MMCM_CLKOUT1_DUTY_CYCLE": [ { "value": "0.500", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "MMCM_CLKOUT1_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "MMCM_CLKOUT1_PHASE": [ { "value": "180.000", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKOUT1_USE_FINE_PS": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "MMCM_CLKOUT2_DIVIDE": [ { "value": "1", "resolve_type": "user", "format": "long", "usage": "all" } ],
+        "MMCM_CLKOUT2_DIVIDE": [ { "value": "11", "value_src": "user", "resolve_type": "user", "format": "long", "usage": "all" } ],
         "MMCM_CLKOUT2_DUTY_CYCLE": [ { "value": "0.500", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKOUT2_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKOUT2_USE_FINE_PS": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
-        "MMCM_CLKOUT3_DIVIDE": [ { "value": "1", "resolve_type": "user", "format": "long", "usage": "all" } ],
+        "MMCM_CLKOUT3_DIVIDE": [ { "value": "11", "value_src": "user", "resolve_type": "user", "format": "long", "usage": "all" } ],
         "MMCM_CLKOUT3_DUTY_CYCLE": [ { "value": "0.500", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "MMCM_CLKOUT3_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "MMCM_CLKOUT3_PHASE": [ { "value": "180.000", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "MMCM_CLKOUT3_USE_FINE_PS": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "MMCM_CLKOUT4_DIVIDE": [ { "value": "1", "resolve_type": "user", "format": "long", "usage": "all" } ],
         "MMCM_CLKOUT4_DUTY_CYCLE": [ { "value": "0.500", "resolve_type": "user", "format": "float", "usage": "all" } ],
@@ -223,8 +223,8 @@
         "PLL_CLKOUT5_DIVIDE": [ { "value": "1", "resolve_type": "user", "format": "long", "usage": "all" } ],
         "PLL_CLKOUT5_DUTY_CYCLE": [ { "value": "0.500", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "PLL_CLKOUT5_PHASE": [ { "value": "0.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "RESET_TYPE": [ { "value": "ACTIVE_HIGH", "resolve_type": "user", "usage": "all" } ],
+        "RESET_TYPE": [ { "value": "ACTIVE_LOW", "value_src": "user", "resolve_type": "user", "usage": "all" } ],
-        "USE_SAFE_CLOCK_STARTUP": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
+        "USE_SAFE_CLOCK_STARTUP": [ { "value": "true", "value_src": "user", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "USE_CLOCK_SEQUENCING": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLKOUT1_SEQUENCE_NUMBER": [ { "value": "1", "resolve_type": "user", "format": "long", "usage": "all" } ],
         "CLKOUT2_SEQUENCE_NUMBER": [ { "value": "1", "resolve_type": "user", "format": "long", "usage": "all" } ],
@@ -245,14 +245,14 @@
         "CDDCREQ_PORT": [ { "value": "cddcreq", "resolve_type": "user", "usage": "all" } ],
         "ENABLE_CLKOUTPHY": [ { "value": "false", "resolve_type": "user", "format": "bool", "usage": "all" } ],
         "CLKOUTPHY_REQUESTED_FREQ": [ { "value": "600.000", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT1_JITTER": [ { "value": "162.582", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT1_JITTER": [ { "value": "137.256", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT1_PHASE_ERROR": [ { "value": "137.238", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT1_PHASE_ERROR": [ { "value": "148.044", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT2_JITTER": [ { "value": "185.296", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT2_JITTER": [ { "value": "137.256", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT2_PHASE_ERROR": [ { "value": "137.238", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT2_PHASE_ERROR": [ { "value": "148.044", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT3_JITTER": [ { "value": "0.0", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT3_JITTER": [ { "value": "123.850", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT3_PHASE_ERROR": [ { "value": "0.0", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT3_PHASE_ERROR": [ { "value": "148.044", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT4_JITTER": [ { "value": "0.0", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT4_JITTER": [ { "value": "123.850", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
-        "CLKOUT4_PHASE_ERROR": [ { "value": "0.0", "resolve_type": "user", "format": "float", "usage": "all" } ],
+        "CLKOUT4_PHASE_ERROR": [ { "value": "148.044", "value_src": "user", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT5_JITTER": [ { "value": "0.0", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT5_PHASE_ERROR": [ { "value": "0.0", "resolve_type": "user", "format": "float", "usage": "all" } ],
         "CLKOUT6_JITTER": [ { "value": "0.0", "resolve_type": "user", "format": "float", "usage": "all" } ],
@@ -280,8 +280,8 @@
         "C_Enable_PLL1": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_REF_CLK_FREQ": [ { "value": "100.0", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_PRECISION": [ { "value": "1", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT3_USED": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_CLKOUT3_USED": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
-        "C_CLKOUT4_USED": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_CLKOUT4_USED": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_CLKOUT5_USED": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_CLKOUT6_USED": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_CLKOUT7_USED": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
@@ -295,9 +295,9 @@
         "C_USE_PHASE_ALIGNMENT": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_PRIM_IN_JITTER": [ { "value": "0.010", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_SECONDARY_IN_JITTER": [ { "value": "0.010", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_JITTER_SEL": [ { "value": "No_Jitter", "resolve_type": "generated", "usage": "all" } ],
+        "C_JITTER_SEL": [ { "value": "Min_O_Jitter", "resolve_type": "generated", "usage": "all" } ],
         "C_USE_MIN_POWER": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
-        "C_USE_MIN_O_JITTER": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_USE_MIN_O_JITTER": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_USE_MAX_I_JITTER": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_USE_DYN_PHASE_SHIFT": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_OPTIMIZE_CLOCKING_STRUCTURE_EN": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
@@ -318,44 +318,44 @@
         "C_SECONDARY_SOURCE": [ { "value": "Single_ended_clock_capable_pin", "resolve_type": "generated", "usage": "all" } ],
         "C_CLKFB_IN_SIGNALING": [ { "value": "SINGLE", "resolve_type": "generated", "usage": "all" } ],
         "C_USE_RESET": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
-        "C_RESET_LOW": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_RESET_LOW": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_USE_LOCKED": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_USE_INCLK_STOPPED": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_USE_CLKFB_STOPPED": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_USE_POWER_DOWN": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_USE_STATUS": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_USE_FREEZE": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
-        "C_NUM_OUT_CLKS": [ { "value": "2", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_NUM_OUT_CLKS": [ { "value": "4", "resolve_type": "generated", "format": "long", "usage": "all" } ],
-        "C_CLKOUT1_DRIVES": [ { "value": "BUFG", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT1_DRIVES": [ { "value": "BUFGCE", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT2_DRIVES": [ { "value": "BUFG", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT2_DRIVES": [ { "value": "BUFGCE", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT3_DRIVES": [ { "value": "BUFG", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT3_DRIVES": [ { "value": "BUFGCE", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT4_DRIVES": [ { "value": "BUFG", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT4_DRIVES": [ { "value": "BUFGCE", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT5_DRIVES": [ { "value": "BUFG", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT5_DRIVES": [ { "value": "BUFGCE", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT6_DRIVES": [ { "value": "BUFG", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT6_DRIVES": [ { "value": "BUFGCE", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT7_DRIVES": [ { "value": "BUFG", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT7_DRIVES": [ { "value": "BUFGCE", "resolve_type": "generated", "usage": "all" } ],
         "C_INCLK_SUM_ROW0": [ { "value": "Input Clock   Freq (MHz)    Input Jitter (UI)", "resolve_type": "generated", "usage": "all" } ],
         "C_INCLK_SUM_ROW1": [ { "value": "__primary_________200.000____________0.010", "resolve_type": "generated", "usage": "all" } ],
         "C_INCLK_SUM_ROW2": [ { "value": "no_secondary_input_clock ", "resolve_type": "generated", "usage": "all" } ],
         "C_OUTCLK_SUM_ROW0A": [ { "value": " Output     Output      Phase    Duty Cycle   Pk-to-Pk     Phase", "resolve_type": "generated", "usage": "all" } ],
         "C_OUTCLK_SUM_ROW0B": [ { "value": "  Clock     Freq (MHz)  (degrees)    (%)     Jitter (ps)  Error (ps)", "resolve_type": "generated", "usage": "all" } ],
-        "C_OUTCLK_SUM_ROW1": [ { "value": "clk_out1__125.00000______0.000______50.0______162.582____137.238", "resolve_type": "generated", "usage": "all" } ],
+        "C_OUTCLK_SUM_ROW1": [ { "value": "clk_adc_65__65.00000______0.000______50.0______137.256____148.044", "resolve_type": "generated", "usage": "all" } ],
-        "C_OUTCLK_SUM_ROW2": [ { "value": "clk_out2__64.90385______0.000______50.0______185.296____137.238", "resolve_type": "generated", "usage": "all" } ],
+        "C_OUTCLK_SUM_ROW2": [ { "value": "clk_adc_65_180__65.00000____180.000______50.0______137.256____148.044", "resolve_type": "generated", "usage": "all" } ],
-        "C_OUTCLK_SUM_ROW3": [ { "value": "no_CLK_OUT3_output", "resolve_type": "generated", "usage": "all" } ],
+        "C_OUTCLK_SUM_ROW3": [ { "value": "clk_dac_125__124.09091______0.000______50.0______123.850____148.044", "resolve_type": "generated", "usage": "all" } ],
-        "C_OUTCLK_SUM_ROW4": [ { "value": "no_CLK_OUT4_output", "resolve_type": "generated", "usage": "all" } ],
+        "C_OUTCLK_SUM_ROW4": [ { "value": "clk_dac_125_180__124.09091____180.000______50.0______123.850____148.044", "resolve_type": "generated", "usage": "all" } ],
         "C_OUTCLK_SUM_ROW5": [ { "value": "no_CLK_OUT5_output", "resolve_type": "generated", "usage": "all" } ],
         "C_OUTCLK_SUM_ROW6": [ { "value": "no_CLK_OUT6_output", "resolve_type": "generated", "usage": "all" } ],
         "C_OUTCLK_SUM_ROW7": [ { "value": "no_CLK_OUT7_output", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT1_REQUESTED_OUT_FREQ": [ { "value": "125", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT1_REQUESTED_OUT_FREQ": [ { "value": "65", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT2_REQUESTED_OUT_FREQ": [ { "value": "65.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT2_REQUESTED_OUT_FREQ": [ { "value": "65", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT3_REQUESTED_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT3_REQUESTED_OUT_FREQ": [ { "value": "125", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT4_REQUESTED_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT4_REQUESTED_OUT_FREQ": [ { "value": "125", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT5_REQUESTED_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT6_REQUESTED_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT7_REQUESTED_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT1_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT2_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT2_REQUESTED_PHASE": [ { "value": "180", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT3_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT4_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT4_REQUESTED_PHASE": [ { "value": "180", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT5_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT6_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT7_REQUESTED_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
@@ -366,28 +366,28 @@
         "C_CLKOUT5_REQUESTED_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT6_REQUESTED_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT7_REQUESTED_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT1_OUT_FREQ": [ { "value": "125.00000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT1_OUT_FREQ": [ { "value": "65.00000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT2_OUT_FREQ": [ { "value": "64.90385", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT2_OUT_FREQ": [ { "value": "65.00000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT3_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT3_OUT_FREQ": [ { "value": "124.09091", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT4_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT4_OUT_FREQ": [ { "value": "124.09091", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT5_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT6_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT7_OUT_FREQ": [ { "value": "100.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT1_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT2_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT2_PHASE": [ { "value": "180.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT3_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT4_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT4_PHASE": [ { "value": "180.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT5_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT6_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT7_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT1_DUTY_CYCLE": [ { "value": "50.0", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT2_DUTY_CYCLE": [ { "value": "50.0", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT3_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT3_DUTY_CYCLE": [ { "value": "50.0", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_CLKOUT4_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_CLKOUT4_DUTY_CYCLE": [ { "value": "50.0", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT5_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT6_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_CLKOUT7_DUTY_CYCLE": [ { "value": "50.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_USE_SAFE_CLOCK_STARTUP": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_USE_SAFE_CLOCK_STARTUP": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_USE_CLOCK_SEQUENCING": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_CLKOUT1_SEQUENCE_NUMBER": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_CLKOUT2_SEQUENCE_NUMBER": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
@@ -397,21 +397,21 @@
         "C_CLKOUT6_SEQUENCE_NUMBER": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_CLKOUT7_SEQUENCE_NUMBER": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_MMCM_NOTES": [ { "value": "None", "resolve_type": "generated", "usage": "all" } ],
-        "C_MMCM_BANDWIDTH": [ { "value": "OPTIMIZED", "resolve_type": "generated", "usage": "all" } ],
+        "C_MMCM_BANDWIDTH": [ { "value": "HIGH", "resolve_type": "generated", "usage": "all" } ],
-        "C_MMCM_CLKFBOUT_MULT_F": [ { "value": "16.875", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_MMCM_CLKFBOUT_MULT_F": [ { "value": "34.125", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_CLKIN1_PERIOD": [ { "value": "5.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_MMCM_CLKIN2_PERIOD": [ { "value": "10.0", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_MMCM_CLKIN2_PERIOD": [ { "value": "10.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_CLKOUT4_CASCADE": [ { "value": "FALSE", "resolve_type": "generated", "format": "bool", "usage": "all" } ],
         "C_MMCM_CLOCK_HOLD": [ { "value": "FALSE", "resolve_type": "generated", "format": "bool", "usage": "all" } ],
         "C_MMCM_COMPENSATION": [ { "value": "ZHOLD", "resolve_type": "generated", "usage": "all" } ],
-        "C_MMCM_DIVCLK_DIVIDE": [ { "value": "4", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_MMCM_DIVCLK_DIVIDE": [ { "value": "5", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_MMCM_REF_JITTER1": [ { "value": "0.010", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_REF_JITTER2": [ { "value": "0.010", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_STARTUP_WAIT": [ { "value": "FALSE", "resolve_type": "generated", "usage": "all" } ],
-        "C_MMCM_CLKOUT0_DIVIDE_F": [ { "value": "6.750", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_MMCM_CLKOUT0_DIVIDE_F": [ { "value": "21.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_MMCM_CLKOUT1_DIVIDE": [ { "value": "13", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_MMCM_CLKOUT1_DIVIDE": [ { "value": "21", "resolve_type": "generated", "format": "long", "usage": "all" } ],
-        "C_MMCM_CLKOUT2_DIVIDE": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_MMCM_CLKOUT2_DIVIDE": [ { "value": "11", "resolve_type": "generated", "format": "long", "usage": "all" } ],
-        "C_MMCM_CLKOUT3_DIVIDE": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
+        "C_MMCM_CLKOUT3_DIVIDE": [ { "value": "11", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_MMCM_CLKOUT4_DIVIDE": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_MMCM_CLKOUT5_DIVIDE": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_MMCM_CLKOUT6_DIVIDE": [ { "value": "1", "resolve_type": "generated", "format": "long", "usage": "all" } ],
@@ -424,9 +424,9 @@
         "C_MMCM_CLKOUT6_DUTY_CYCLE": [ { "value": "0.500", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_CLKFBOUT_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_CLKOUT0_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_MMCM_CLKOUT1_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_MMCM_CLKOUT1_PHASE": [ { "value": "180.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_CLKOUT2_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_MMCM_CLKOUT3_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_MMCM_CLKOUT3_PHASE": [ { "value": "180.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_CLKOUT4_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_CLKOUT5_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_MMCM_CLKOUT6_PHASE": [ { "value": "0.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
@@ -468,16 +468,16 @@
         "C_CLOCK_MGR_TYPE": [ { "value": "NA", "resolve_type": "generated", "usage": "all" } ],
         "C_OVERRIDE_MMCM": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
         "C_OVERRIDE_PLL": [ { "value": "0", "resolve_type": "generated", "format": "long", "usage": "all" } ],
-        "C_PRIMARY_PORT": [ { "value": "clk_in1", "resolve_type": "generated", "usage": "all" } ],
+        "C_PRIMARY_PORT": [ { "value": "clk_200", "resolve_type": "generated", "usage": "all" } ],
         "C_SECONDARY_PORT": [ { "value": "clk_in2", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLK_OUT1_PORT": [ { "value": "clk_out1", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLK_OUT1_PORT": [ { "value": "clk_adc_65", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLK_OUT2_PORT": [ { "value": "clk_out2", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLK_OUT2_PORT": [ { "value": "clk_adc_65_180", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLK_OUT3_PORT": [ { "value": "clk_out3", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLK_OUT3_PORT": [ { "value": "clk_dac_125", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLK_OUT4_PORT": [ { "value": "clk_out4", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLK_OUT4_PORT": [ { "value": "clk_dac_125_180", "resolve_type": "generated", "usage": "all" } ],
         "C_CLK_OUT5_PORT": [ { "value": "clk_out5", "resolve_type": "generated", "usage": "all" } ],
         "C_CLK_OUT6_PORT": [ { "value": "clk_out6", "resolve_type": "generated", "usage": "all" } ],
         "C_CLK_OUT7_PORT": [ { "value": "clk_out7", "resolve_type": "generated", "usage": "all" } ],
-        "C_RESET_PORT": [ { "value": "reset", "resolve_type": "generated", "usage": "all" } ],
+        "C_RESET_PORT": [ { "value": "resetn", "resolve_type": "generated", "usage": "all" } ],
         "C_LOCKED_PORT": [ { "value": "locked", "resolve_type": "generated", "usage": "all" } ],
         "C_CLKFB_IN_PORT": [ { "value": "clkfb_in", "resolve_type": "generated", "usage": "all" } ],
         "C_CLKFB_IN_P_PORT": [ { "value": "clkfb_in_p", "resolve_type": "generated", "usage": "all" } ],
@@ -540,12 +540,12 @@
         "C_FILTER_1": [ { "value": "0000", "resolve_type": "generated", "usage": "all" } ],
         "C_FILTER_2": [ { "value": "0000", "resolve_type": "generated", "usage": "all" } ],
         "C_DIVIDE1_AUTO": [ { "value": "1", "resolve_type": "generated", "usage": "all" } ],
-        "C_DIVIDE2_AUTO": [ { "value": "1.9259259259259258", "resolve_type": "generated", "usage": "all" } ],
+        "C_DIVIDE2_AUTO": [ { "value": "1.0", "resolve_type": "generated", "usage": "all" } ],
-        "C_DIVIDE3_AUTO": [ { "value": "0.14814814814814814", "resolve_type": "generated", "usage": "all" } ],
+        "C_DIVIDE3_AUTO": [ { "value": "0.5238095238095238", "resolve_type": "generated", "usage": "all" } ],
-        "C_DIVIDE4_AUTO": [ { "value": "0.14814814814814814", "resolve_type": "generated", "usage": "all" } ],
+        "C_DIVIDE4_AUTO": [ { "value": "0.5238095238095238", "resolve_type": "generated", "usage": "all" } ],
-        "C_DIVIDE5_AUTO": [ { "value": "0.14814814814814814", "resolve_type": "generated", "usage": "all" } ],
+        "C_DIVIDE5_AUTO": [ { "value": "0.047619047619047616", "resolve_type": "generated", "usage": "all" } ],
-        "C_DIVIDE6_AUTO": [ { "value": "0.14814814814814814", "resolve_type": "generated", "usage": "all" } ],
+        "C_DIVIDE6_AUTO": [ { "value": "0.047619047619047616", "resolve_type": "generated", "usage": "all" } ],
-        "C_DIVIDE7_AUTO": [ { "value": "0.14814814814814814", "resolve_type": "generated", "usage": "all" } ],
+        "C_DIVIDE7_AUTO": [ { "value": "0.047619047619047616", "resolve_type": "generated", "usage": "all" } ],
         "C_PLLBUFGCEDIV": [ { "value": "false", "resolve_type": "generated", "usage": "all" } ],
         "C_MMCMBUFGCEDIV": [ { "value": "false", "resolve_type": "generated", "usage": "all" } ],
         "C_PLLBUFGCEDIV1": [ { "value": "false", "resolve_type": "generated", "usage": "all" } ],
@@ -566,66 +566,68 @@
         "C_CLKOUT5_MATCHED_ROUTING": [ { "value": "false", "resolve_type": "generated", "usage": "all" } ],
         "C_CLKOUT6_MATCHED_ROUTING": [ { "value": "false", "resolve_type": "generated", "usage": "all" } ],
         "C_CLKOUT7_MATCHED_ROUTING": [ { "value": "false", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT0_ACTUAL_FREQ": [ { "value": "125.00000", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT0_ACTUAL_FREQ": [ { "value": "65.00000", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT1_ACTUAL_FREQ": [ { "value": "64.90385", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT1_ACTUAL_FREQ": [ { "value": "65.00000", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT2_ACTUAL_FREQ": [ { "value": "100.000", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT2_ACTUAL_FREQ": [ { "value": "124.09091", "resolve_type": "generated", "usage": "all" } ],
-        "C_CLKOUT3_ACTUAL_FREQ": [ { "value": "100.000", "resolve_type": "generated", "usage": "all" } ],
+        "C_CLKOUT3_ACTUAL_FREQ": [ { "value": "124.09091", "resolve_type": "generated", "usage": "all" } ],
         "C_CLKOUT4_ACTUAL_FREQ": [ { "value": "100.000", "resolve_type": "generated", "usage": "all" } ],
         "C_CLKOUT5_ACTUAL_FREQ": [ { "value": "100.000", "resolve_type": "generated", "usage": "all" } ],
         "C_CLKOUT6_ACTUAL_FREQ": [ { "value": "100.000", "resolve_type": "generated", "usage": "all" } ],
         "C_M_MAX": [ { "value": "64.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_M_MIN": [ { "value": "2.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_D_MAX": [ { "value": "80.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
+        "C_D_MAX": [ { "value": "93.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_D_MIN": [ { "value": "1.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_O_MAX": [ { "value": "128.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_O_MIN": [ { "value": "1.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
         "C_VCO_MIN": [ { "value": "600.000", "resolve_type": "generated", "format": "float", "usage": "all" } ],
-        "C_VCO_MAX": [ { "value": "1200.000", "resolve_type": "generated", "format": "float", "usage": "all" } ]
+        "C_VCO_MAX": [ { "value": "1440.000", "resolve_type": "generated", "format": "float", "usage": "all" } ]
       },
       "project_parameters": {
-        "ARCHITECTURE": [ { "value": "artix7" } ],
+        "ARCHITECTURE": [ { "value": "artix7", "resolve_type": "generated", "usage": "all" } ],
-        "BASE_BOARD_PART": [ { "value": "" } ],
+        "BASE_BOARD_PART": [ { "value": "", "resolve_type": "generated", "usage": "all" } ],
-        "BOARD_CONNECTIONS": [ { "value": "" } ],
+        "BOARD_CONNECTIONS": [ { "value": "", "resolve_type": "generated", "usage": "all" } ],
-        "DEVICE": [ { "value": "xc7a35t" } ],
+        "DEVICE": [ { "value": "xc7a100t", "resolve_type": "generated", "usage": "all" } ],
-        "PACKAGE": [ { "value": "fgg484" } ],
+        "PACKAGE": [ { "value": "fgg484", "resolve_type": "generated", "usage": "all" } ],
-        "PREFHDL": [ { "value": "VERILOG" } ],
+        "PREFHDL": [ { "value": "VERILOG", "resolve_type": "generated", "usage": "all" } ],
-        "SILICON_REVISION": [ { "value": "" } ],
+        "SILICON_REVISION": [ { "value": "", "resolve_type": "generated", "usage": "all" } ],
-        "SIMULATOR_LANGUAGE": [ { "value": "MIXED" } ],
+        "SIMULATOR_LANGUAGE": [ { "value": "MIXED", "resolve_type": "generated", "usage": "all" } ],
-        "SPEEDGRADE": [ { "value": "-1" } ],
+        "SPEEDGRADE": [ { "value": "-2", "resolve_type": "generated", "usage": "all" } ],
-        "STATIC_POWER": [ { "value": "" } ],
+        "STATIC_POWER": [ { "value": "", "resolve_type": "generated", "usage": "all" } ],
-        "TEMPERATURE_GRADE": [ { "value": "" } ]
+        "TEMPERATURE_GRADE": [ { "value": "", "resolve_type": "generated", "usage": "all" } ]
       },
       "runtime_parameters": {
         "IPCONTEXT": [ { "value": "IP_Flow" } ],
-        "IPREVISION": [ { "value": "16" } ],
+        "IPREVISION": [ { "value": "17" } ],
         "MANAGED": [ { "value": "TRUE" } ],
-        "OUTPUTDIR": [ { "value": "../../../../eth_generator_top.gen/sources_1/ip/clk_wiz_ctrl_inst" } ],
+        "OUTPUTDIR": [ { "value": "../../../../reflectometer_top.gen/sources_1/ip/clk_wiz_ctrl_inst" } ],
         "SELECTEDSIMMODEL": [ { "value": "" } ],
         "SHAREDDIR": [ { "value": "." } ],
-        "SWVERSION": [ { "value": "2025.1" } ],
+        "SWVERSION": [ { "value": "2025.2" } ],
         "SYNTHESISFLOW": [ { "value": "OUT_OF_CONTEXT" } ]
       }
     },
     "boundary": {
       "ports": {
-        "reset": [ { "direction": "in", "driver_value": "0" } ],
+        "resetn": [ { "direction": "in", "driver_value": "0" } ],
-        "clk_in1": [ { "direction": "in" } ],
+        "clk_200": [ { "direction": "in" } ],
-        "clk_out1": [ { "direction": "out" } ],
+        "clk_adc_65": [ { "direction": "out" } ],
-        "clk_out2": [ { "direction": "out" } ],
+        "clk_adc_65_180": [ { "direction": "out" } ],
+        "clk_dac_125": [ { "direction": "out" } ],
+        "clk_dac_125_180": [ { "direction": "out" } ],
         "locked": [ { "direction": "out" } ]
       },
       "interfaces": {
-        "reset": {
+        "resetn": {
           "vlnv": "xilinx.com:signal:reset:1.0",
           "abstraction_type": "xilinx.com:signal:reset_rtl:1.0",
           "mode": "slave",
           "parameters": {
-            "POLARITY": [ { "value": "ACTIVE_HIGH", "value_src": "constant", "usage": "all" } ],
+            "POLARITY": [ { "value": "ACTIVE_LOW", "value_src": "constant", "usage": "all" } ],
             "BOARD.ASSOCIATED_PARAM": [ { "value": "RESET_BOARD_INTERFACE", "value_src": "constant", "usage": "all" } ],
             "INSERT_VIP": [ { "value": "0", "resolve_type": "user", "format": "long", "usage": "simulation.rtl", "is_ips_inferred": true, "is_static_object": false } ]
           },
           "port_maps": {
-            "RST": [ { "physical_name": "reset" } ]
+            "RST": [ { "physical_name": "resetn" } ]
           }
         },
         "clock_CLK_IN1": {
@@ -644,7 +646,7 @@
             "BOARD.ASSOCIATED_PARAM": [ { "value": "CLK_IN1_BOARD_INTERFACE", "usage": "all", "is_static_object": false } ]
           },
           "port_maps": {
-            "CLK_IN1": [ { "physical_name": "clk_in1" } ]
+            "CLK_IN1": [ { "physical_name": "clk_200" } ]
           }
         },
         "clock_CLK_OUT1": {
@@ -662,7 +664,7 @@
             "INSERT_VIP": [ { "value": "0", "resolve_type": "user", "format": "long", "usage": "simulation.rtl", "is_ips_inferred": true, "is_static_object": false } ]
           },
           "port_maps": {
-            "CLK_OUT1": [ { "physical_name": "clk_out1" } ]
+            "CLK_OUT1": [ { "physical_name": "clk_adc_65" } ]
           }
         },
         "clock_CLK_OUT2": {
@@ -680,10 +682,47 @@
             "INSERT_VIP": [ { "value": "0", "resolve_type": "user", "format": "long", "usage": "simulation.rtl", "is_ips_inferred": true, "is_static_object": false } ]
           },
           "port_maps": {
-            "CLK_OUT2": [ { "physical_name": "clk_out2" } ]
+            "CLK_OUT2": [ { "physical_name": "clk_adc_65_180" } ]
+          }
+        },
+        "clock_CLK_OUT3": {
+          "vlnv": "xilinx.com:signal:clock:1.0",
+          "abstraction_type": "xilinx.com:signal:clock_rtl:1.0",
+          "mode": "master",
+          "parameters": {
+            "FREQ_HZ": [ { "value": "100000000", "resolve_type": "generated", "format": "long", "is_ips_inferred": true, "is_static_object": false } ],
+            "FREQ_TOLERANCE_HZ": [ { "value": "0", "resolve_type": "generated", "format": "long", "is_ips_inferred": true, "is_static_object": false } ],
+            "PHASE": [ { "value": "0.0", "resolve_type": "generated", "format": "float", "is_ips_inferred": true, "is_static_object": false } ],
+            "CLK_DOMAIN": [ { "value": "", "resolve_type": "generated", "is_ips_inferred": true, "is_static_object": false } ],
+            "ASSOCIATED_BUSIF": [ { "value": "", "resolve_type": "generated", "is_ips_inferred": true, "is_static_object": false } ],
+            "ASSOCIATED_PORT": [ { "value": "", "resolve_type": "generated", "is_ips_inferred": true, "is_static_object": false } ],
+            "ASSOCIATED_RESET": [ { "value": "", "resolve_type": "generated", "is_ips_inferred": true, "is_static_object": false } ],
+            "INSERT_VIP": [ { "value": "0", "resolve_type": "user", "format": "long", "usage": "simulation.rtl", "is_ips_inferred": true, "is_static_object": false } ]
+          },
+          "port_maps": {
+            "CLK_OUT3": [ { "physical_name": "clk_dac_125" } ]
+          }
+        },
+        "clock_CLK_OUT4": {
+          "vlnv": "xilinx.com:signal:clock:1.0",
+          "abstraction_type": "xilinx.com:signal:clock_rtl:1.0",
+          "mode": "master",
+          "parameters": {
+            "FREQ_HZ": [ { "value": "100000000", "resolve_type": "generated", "format": "long", "is_ips_inferred": true, "is_static_object": false } ],
+            "FREQ_TOLERANCE_HZ": [ { "value": "0", "resolve_type": "generated", "format": "long", "is_ips_inferred": true, "is_static_object": false } ],
+            "PHASE": [ { "value": "0.0", "resolve_type": "generated", "format": "float", "is_ips_inferred": true, "is_static_object": false } ],
+            "CLK_DOMAIN": [ { "value": "", "resolve_type": "generated", "is_ips_inferred": true, "is_static_object": false } ],
+            "ASSOCIATED_BUSIF": [ { "value": "", "resolve_type": "generated", "is_ips_inferred": true, "is_static_object": false } ],
+            "ASSOCIATED_PORT": [ { "value": "", "resolve_type": "generated", "is_ips_inferred": true, "is_static_object": false } ],
+            "ASSOCIATED_RESET": [ { "value": "", "resolve_type": "generated", "is_ips_inferred": true, "is_static_object": false } ],
+            "INSERT_VIP": [ { "value": "0", "resolve_type": "user", "format": "long", "usage": "simulation.rtl", "is_ips_inferred": true, "is_static_object": false } ]
+          },
+          "port_maps": {
+            "CLK_OUT4": [ { "physical_name": "clk_dac_125_180" } ]
           }
         }
       }
     }
-  }
+  },
+  "checksum": "3ec15bbf"
 }

designs/reflectometer_base/reflectometer.sv

@@ -1,128 +1,115 @@
 `timescale 1 ns / 1 ns
 
+`include "interfaces.svh"
+
 module reflectometer_top #(
     parameter int unsigned DAC_DATA_WIDTH = 14,
     parameter int unsigned ADC_DATA_WIDTH = 12,
-    parameter PACK_FACTOR = 1,
+    parameter int unsigned PACK_FACTOR = 1,
-    parameter PROCESS_MODE = 0,
+    parameter int unsigned PROCESS_MODE = 0,
-    parameter ZERO_LEVEL = 8192,
+    parameter int unsigned ZERO_LEVEL = 8192,
-    parameter ACCUM_WIDTH = 32,
+    parameter int unsigned ACCUM_WIDTH = 32,
-    parameter N_MAX = 4096,
+    parameter int unsigned N_MAX = 4096,
-    parameter WINDOW_SIZE = 65,
+    parameter int unsigned PACKET_SIZE = 1024
-    parameter PACKET_SIZE = 1024
 )(
-    input               sys_clk,
+    input   wire        clk_in,
-    input               rst_n,
+    input   wire        rst_n,
+    output  wire        locked,
 
-    output [3:0]        led,
+    // Accumulator AXI-S bus
+    input   wire        clk_axis_accumulator, //  GMII PHY RX clock
+    axis_if.master      axis_accumulator,
 
-    input gmii_rx_clk,
+    // Control AXI-S bus
-    input gmii_tx_clk,
+    input   wire        clk_axis_control,   //  GMII PHY TX clock
+    axis_if.slave       axis_control,
+    input   wire [31:0] window_size,      //  New accum & old controller crutch
 
-    (* MARK_DEBUG="true" *) output logic [7:0]  s_axis_tx_tdata,
+    // Status signals
-    (* MARK_DEBUG="true" *) output logic        s_axis_tx_tvalid,
+    output  wire        workflow_done,
-    (* MARK_DEBUG="true" *) input  logic        s_axis_tx_tready,
+    output  wire        processing_done,
-    (* MARK_DEBUG="true" *) output logic        s_axis_tx_tlast,
 
-    (* MARK_DEBUG="true" *) input  wire [7:0]  m_axis_rx_tdata,
+    // RTL-MAC handshake
-    (* MARK_DEBUG="true" *) input  wire        m_axis_rx_tvalid,
+    input   wire        request_ready,
-    (* MARK_DEBUG="true" *) input  wire        m_axis_rx_tlast,
+    output  wire        send_request,
-    (* MARK_DEBUG="true" *) output wire        m_axis_rx_tready,
-
-    // axis_mac
-
-    (* MARK_DEBUG="true" *) input logic       req_ready,
-    (* MARK_DEBUG="true" *) output logic       send_req,
 
     // DAC
-
+    output  wire                        dac_clk_o,
-    output wire p2_clk,
+    output  wire [DAC_DATA_WIDTH-1:0]   dac_data,
-    (* MARK_DEBUG="true" *) output     wire [DAC_DATA_WIDTH-1:0]       p2_data,
+    output  wire                        dac_wrt,
-    (* MARK_DEBUG="true" *) output     wire p2_wrt,
 
     // ADC
-    output ch2_clk,
+    output  wire                        adc_clk_o,
-    (* MARK_DEBUG="true" *) input [ADC_DATA_WIDTH-1:0] ch2_data,
+    input   wire [ADC_DATA_WIDTH-1:0]   adc_data,
-    input ch2_otr
+    input   wire                        adc_otr
 
 );
 
-    // -------------------------------------------------------------------------
-    // IDELAYCTRL
-    // -------------------------------------------------------------------------
-    (* IODELAY_GROUP = "rgmii_idelay_group" *)
-    IDELAYCTRL IDELAYCTRL_inst (
-        .RDY    (),
-        .REFCLK (sys_clk),
-        .RST    (1'b0)
-    );
-
     // -------------------------------------------------------------------------
     // Generated clocks for controller
     // Need to create this IP in Vivado:
-    //  input : 200 MHz
+    //  input  resetn
-    //  output0: 130 MHz
+    //  input  clk_200          : 200 MHz                  : Reference clock
-    //  output1: 65 MHz
+    //  output clk_adc_65       : 65 MHz                   : ADC RTL clock
+    //  output clk_adc_65_180   : 65 MHz, phase 180 deg.   : ADC PHY clock
+    //  output clk_adc_125      : 125 MHz                  : DAC RTL clock
+    //  output clk_adc_125_180  : 125 MHz, phase 180 deg.  : DAC PHY clock
+    //  output locked
     // -------------------------------------------------------------------------
-    wire dac_clk;
+    wire clk_sampler, clk_generator, clk_locked;
-    wire adc_clk;
-    wire clk_wiz_locked;
 
-    clk_wiz_ctrl_inst clk_wiz_ctrl_inst (
+    clk_wiz_ctrl_inst clk_wiz_inst
-        .clk_in1   (sys_clk),
+    (
-        .reset    (~rst_n),
+        // Clock in ports
-        .clk_out1  (dac_clk),   // 130 MHz
+        .clk_200(clk_in),
-        .clk_out2  (adc_clk),   // 65 MHz
+        // Clock out ports  
-        .locked    (clk_wiz_locked)
+        .clk_adc_65(clk_sampler),
+        .clk_adc_65_180(adc_clk_o),
+        .clk_dac_125(clk_generator),
+        .clk_dac_125_180(dac_clk_o),
+        // Status and control signals               
+        .resetn(rst_n), 
+        .locked(clk_locked)
     );
 
-    // -------------------------------------------------------------------------
+    assign locked = clk_locked;
-    // axis_mac interface
-    // RX stream from Ethernet goes into controller
-    // TX stream is unused for now
-    // -------------------------------------------------------------------------
-
 
     // -------------------------------------------------------------------------
     // Controller reset
     // Use both external reset and clk_wiz lock
     // -------------------------------------------------------------------------
-    wire ctrl_rst_n = rst_n & clk_wiz_locked;
+    wire ctrl_rst_n = rst_n & clk_locked;
-
-
-    (* MARK_DEBUG="true" *) logic        finish;
-
-    // Controller outputs to debug
-    (* MARK_DEBUG="true" *) wire [31:0]               dac_pulse_width;
-    (* MARK_DEBUG="true" *) wire [31:0]               dac_pulse_period;
-    (* MARK_DEBUG="true" *) wire [DAC_DATA_WIDTH-1:0] dac_pulse_height;
-    (* MARK_DEBUG="true" *) wire [15:0]               dac_pulse_num;
-
-    (* MARK_DEBUG="true" *) wire [31:0]               adc_pulse_period;
-    (* MARK_DEBUG="true" *) wire [15:0]               adc_pulse_num;
-
-    (* MARK_DEBUG="true" *) wire                      dac_start;
-    (* MARK_DEBUG="true" *) wire                      adc_start;
-    (* MARK_DEBUG="true" *) wire                      dac_rst;
-    (* MARK_DEBUG="true" *) wire                      adc_rst;
-
 
     // -------------------------------------------------------------------------
     // Controller
-    // ETH domain = gmii_rx_clk, because RX AXI master comes from axis_mac RX side
     // -------------------------------------------------------------------------
+    wire [31:0]               dac_pulse_width;
+    wire [31:0]               dac_pulse_period;
+    wire [DAC_DATA_WIDTH-1:0] dac_pulse_height;
+    wire [15:0]               dac_pulse_num;
+
+    wire [31:0]               adc_pulse_period;
+    wire [15:0]               adc_pulse_num;
+
+    wire                      dac_start;
+    wire                      adc_start;
+    wire                      dac_rst;
+    wire                      adc_rst;
+
+    wire finish;
+
     control #(
         .DAC_DATA_WIDTH(DAC_DATA_WIDTH)
     ) udp_ctrl_inst (
-        .eth_clk_in        (gmii_rx_clk),
+        .eth_clk_in        (clk_axis_control),
-        .dac_clk_in        (dac_clk),
+        .dac_clk_in        (clk_generator),
-        .adc_clk_in        (adc_clk),
+        .adc_clk_in        (clk_sampler),
         .rst_n             (ctrl_rst_n),
 
-        .s_axis_tdata      (m_axis_rx_tdata),
+        .s_axis_tdata      (axis_control.tdata),
-        .s_axis_tvalid     (m_axis_rx_tvalid),
+        .s_axis_tvalid     (axis_control.tvalid),
-        .s_axis_tready     (m_axis_rx_tready),
+        .s_axis_tready     (axis_control.tready),
-        .s_axis_tlast      (m_axis_rx_tlast),
+        .s_axis_tlast      (axis_control.tlast),
 
         .finish            (finish),
 
@@ -141,180 +128,125 @@ module reflectometer_top #(
         .adc_rst           (adc_rst)
     );
 
-    // -------------------------------------------------------------------------
+    //------------------------------------------------------------
-    // DAC
-    // -------------------------------------------------------------------------
-
-   (* MARK_DEBUG="true" *) logic sample_req;
-   (* MARK_DEBUG="true" *) logic sample_req_sync1;
-   (* MARK_DEBUG="true" *) logic sample_req_sync2;
-   (* MARK_DEBUG="true" *) logic sample_req_sync3;
-
-   (* MARK_DEBUG="true" *) logic sample_done;
-   (* MARK_DEBUG="true" *) logic sample_done_sync1;
-   (* MARK_DEBUG="true" *) logic sample_done_sync2;
-   (* MARK_DEBUG="true" *) logic sample_done_sync3;
-
-   //------------------------------------------------------------
     // DAC -> ADC CDC
     //------------------------------------------------------------
-    always_ff @(posedge adc_clk or posedge adc_rst) begin
+    (* ASYNC_REG = "TRUE" *)    logic [2:0] stretch;    // 125/65~=2. Чтобы поймать единичный импульс, растянем его во времени
-        if (adc_rst) begin
+    (* ASYNC_REG = "TRUE" *)    logic [1:0] sync_DA;
-            sample_req <= 1'b0;
+                                wire        dac_done_stretched;
-            sample_req_sync2  <= 1'b0;
+
-            sample_req_sync3 <= 1'b0;
+    wire generator_done, generator_request;
-        end
+    wire sampler_done, sampler_request;
+    
+    always_ff @(posedge clk_generator or posedge dac_rst)
+    begin
+        if (dac_rst)
+            stretch <= 0;
         else begin
-            sample_req_sync2 <= sample_req_sync1;
+            stretch[0] <= generator_done;
-            sample_req_sync3  <= sample_req_sync2;
+            stretch[1] <= stretch[0];
-            sample_req <= sample_req_sync3;
+            stretch[2] <= stretch[1];
         end
     end
+    assign dac_done_stretched = |stretch;
 
-     //------------------------------------------------------------
+    always_ff @(posedge clk_sampler or posedge adc_rst) begin
+        if (adc_rst)
+            sync_DA <= 0;
+        else begin
+            sync_DA[0] <= dac_done_stretched;
+            sync_DA[1] <= sync_DA[0];
+        end
+    end
+    assign sampler_request = sync_DA[1];
+
+    //------------------------------------------------------------
     // ADC -> DAC CDC
     //------------------------------------------------------------
-    always_ff @(posedge dac_clk or posedge dac_rst) begin
+    (* ASYNC_REG = "TRUE" *)    logic [1:0] sync_AD;
-        if (dac_rst) begin
+
-            sample_done <= 1'b0;
+    always_ff @(posedge clk_generator or posedge dac_rst) begin
-            sample_done_sync2 <= 1'b0;
+        if (dac_rst)
-            sample_done_sync3 <= 1'b0;
+            sync_AD <= 0;
-        end
         else begin
-            sample_done_sync2 <= sample_done_sync1;
+            sync_AD[0] <= sampler_done;
-            sample_done_sync3 <= sample_done_sync2;
+            sync_AD[1] <= sync_AD[0];
-            sample_done <= sample_done_sync3;
         end
     end
+    assign generator_request = sync_AD[1];
 
-     //------------------------------------------------------------
-    // Generator
     //------------------------------------------------------------
-
+    // Generator (DAC)
+    //------------------------------------------------------------
     generator #(
         .DATA_WIDTH(DAC_DATA_WIDTH),
         .ZERO_LEVEL(ZERO_LEVEL)
     ) generator_inst (
-        .clk_in(dac_clk),
+        .clk_dac(clk_generator),
         .rst(dac_rst),
         .start(dac_start),
         .pulse_width(dac_pulse_width),
         .pulse_period(dac_pulse_period),
         .pulse_height(dac_pulse_height),
         .pulse_num(dac_pulse_num),
-        .pulse(p2_wrt),
+        .dac_out(dac_data),
-        .pulse_height_out(p2_data),
+        .done(generator_done),
-        .sample_done(sample_done),
+        .request(generator_request)
-        .sample_req(sample_req_sync1)
     );
+    assign dac_wrt = dac_clk_o;
 
-    wire ch2_clk_oddr;
-
-    ODDR #(
-        .DDR_CLK_EDGE("SAME_EDGE"),
-        .INIT(1'b0),
-        .SRTYPE("SYNC")
-    ) ODDR_ch2_clk (
-        .Q (ch2_clk_oddr),
-        .C (adc_clk),
-        .CE(1'b1),
-        .D1(1'b1),
-        .D2(1'b0),
-        .R (1'b0),
-        .S (1'b0)
-    );
-
-    OBUF OBUF_ch2_clk (
-        .I(ch2_clk_oddr),
-        .O(ch2_clk)
-    );
-
-    wire p2_clk_oddr;
-
-    ODDR #(
-        .DDR_CLK_EDGE("SAME_EDGE"),
-        .INIT(1'b0),
-        .SRTYPE("SYNC")
-    ) ODDR_p2_clk (
-        .Q (p2_clk_oddr),
-        .C (dac_clk),
-        .CE(1'b1),
-        .D1(1'b1),
-        .D2(1'b0),
-        .R (1'b0),
-        .S (1'b0)
-    );
-
-    OBUF OBUF_p2_clk (
-        .I(p2_clk_oddr),
-        .O(p2_clk)
-    );
-
-// -------------------------------------------------------------------------
-    // ADC
     // -------------------------------------------------------------------------
+    // Sampler (ADC)
+    // -------------------------------------------------------------------------
+    wire [ADC_DATA_WIDTH*PACK_FACTOR-1:0]   sampler_m_axis_tdata;
+    wire                                    sampler_m_axis_tvalid;
 
-    (* MARK_DEBUG="true" *) logic [ADC_DATA_WIDTH*PACK_FACTOR-1:0]  accum_m_axis_tdata;
+    sampler #(
-    (* MARK_DEBUG="true" *) logic acum_m_axis_tvalid;
-
-    sampler 
-    #(
         .DATA_WIDTH(ADC_DATA_WIDTH),
         .PACK_FACTOR(PACK_FACTOR),
         .PROCESS_MODE(PROCESS_MODE)
-    )
+    ) sampler_dut (
-    sampler_dut
+        .clk_in(clk_sampler),
-    (
+        .rst(adc_rst),
-       .clk_in(adc_clk),
+        .data_in(adc_data),
-       .rst(adc_rst),
+        .out_of_range(adc_otr),
-       .data_in(ch2_data),
+        .m_axis_tdata(sampler_m_axis_tdata),
-       .out_of_range(ch2_otr),
+        .m_axis_tvalid(sampler_m_axis_tvalid),
-       .m_axis_tdata(accum_m_axis_tdata),
-       .m_axis_tvalid(acum_m_axis_tvalid),
         .smp_num(adc_pulse_period),
-        .sample_req(sample_req),
+        .done(sampler_done),
-        .sample_done(sample_done_sync1)
+        .request(sampler_request)
     );
 
     // -------------------------------------------------------------------------
     // Accumulator
     // -------------------------------------------------------------------------
-
+    assign workflow_done = finish;
-    accumulator_top
+    
-    #(
+    accumulator_top #(
         .DATA_WIDTH(ADC_DATA_WIDTH),
         .ACCUM_WIDTH(ACCUM_WIDTH),
         .N_MAX(N_MAX),
-        .WINDOW_SIZE(WINDOW_SIZE),
         .PACKET_SIZE(PACKET_SIZE)
-    )
+    ) accumulator_top_dut (
-    accumulator_top_dut
+        .clk_in(clk_sampler),
-    (
-        .clk_in(adc_clk),
         .rst(adc_rst),
-        .s_axis_tdata(accum_m_axis_tdata),
+        .s_axis_tdata(sampler_m_axis_tdata),
-        .s_axis_tvalid(acum_m_axis_tvalid),
+        .s_axis_tvalid(sampler_m_axis_tvalid),
         .start(adc_start),
         .smp_num(adc_pulse_period),
         .seq_num(adc_pulse_num),
+        .window_size(window_size),
 
-        .eth_clk_in(gmii_tx_clk),
+        .req_ready(request_ready),
-        .req_ready(req_ready),
+        .send_req(send_request),
-        .send_req(send_req),
+        .eth_clk_in(clk_axis_accumulator),
-        .m_axis_tdata(s_axis_tx_tdata),
+        .m_axis_tdata(axis_accumulator.tdata),
-        .m_axis_tvalid(s_axis_tx_tvalid),
+        .m_axis_tvalid(axis_accumulator.tvalid),
-        .m_axis_tready(s_axis_tx_tready),
+        .m_axis_tready(axis_accumulator.tready),
-        .m_axis_tlast(s_axis_tx_tlast),
+        .m_axis_tlast(axis_accumulator.tlast),
 
-        .finish(finish)
+        .finish(finish),                // full reflectometer workflow complete (with transaction)
+        .accum_done(processing_done)    // signal generation, sampling and processing complete
     );
 
-
+endmodule
-    // -------------------------------------------------------------------------
-    // Simple LED status
-    // -------------------------------------------------------------------------
-    assign led[0] = clk_wiz_locked;
-    assign led[1] = m_axis_rx_tvalid;
-    assign led[2] = dac_start;
-
-endmodule

designs/reflectometer_base/reflectometer_tb.sv

@@ -0,0 +1,794 @@
+`timescale 1ns / 1ps
+
+`include "interfaces.svh"
+
+// `define DEBUG
+
+`define MEASURE_CLK(clk, period) \
+begin \
+    realtime t1, t2; \
+    @(posedge clk); \
+    t1 = $realtime; \
+    @(posedge clk); \
+    t2 = $realtime; \
+    period = t2 - t1; \
+end
+
+`define ERR_CHECK   \
+    total_tests++;  \
+    if (result_flag) begin  \
+        total_failed_tests++;   \
+        $error("Test #%0d failed. Err code: %0d", total_tests, result_flag); \
+    end \
+
+module reflectometer_tb;
+    //------------------------------------------------------------
+    // Параметры
+    //------------------------------------------------------------
+    localparam int unsigned DAC_DATA_WIDTH = 14;
+    localparam int unsigned ADC_DATA_WIDTH = 12;
+    localparam LOGIC_ZERO_LEVEL     = 0; // DAC -5V for logic zero
+    localparam VOLTAGE_ZERO_LEVEL   = 2**(DAC_DATA_WIDTH-1); // DAC 0V for logic zero
+    localparam PACK_FACTOR = 1;     // not used in TB
+    localparam PROCESS_MODE = 0;    // 0 - uint, 1 - int. Current accumulator don't support signed sum
+    localparam ACCUM_WIDTH = 32;    // accumulator number bit witdth
+    localparam N_MAX = 4096;        // max value of windows to average by experiments
+    localparam PACKET_SIZE = 1024;  // bytes per UDP packet
+    
+    localparam int REQUEST_TIMEOUT = 3 * PACKET_SIZE; // timeout for packet receiving from accumulator
+    localparam int TEST_NUM = 100; // number of random tests
+
+    localparam real PEARSON_THRESHOLD = 0.99;
+    localparam real NRMSE_THRESHOLD = 0.1;
+
+    localparam ZERO_LEVEL           = LOGIC_ZERO_LEVEL; // "logic" VS "voltage"
+
+    localparam CLK_ETH_PHY_PERIOD           = 8.000; // 125 MHz
+    localparam CLK_REF_PERIOD               = 5.000; // 200 MHz
+    
+    //------------------------------------------------------------
+    // Глобальные перменные
+    //------------------------------------------------------------
+    realtime CLK_ADC_PERIOD;
+    realtime CLK_DAC_PERIOD;
+
+    //------------------------------------------------------------
+    // Тактовые сигналы и сброс
+    //------------------------------------------------------------
+    logic clk_ref       = 1'b0; // 200 MHz
+    logic clk_eth_phy   = 1'b0; // common for RX & TX
+    logic rst_n         = 1'b0;
+    
+    //------------------------------------------------------------
+    // Управление и конфиг DUT
+    //------------------------------------------------------------
+    logic [31:0] window_size_port;
+    // AXI-S интерфейс для управления
+    axis_if axis_control_if (
+        .clk(clk_eth_phy),
+        .rst_n(rst_n)
+    );
+    
+    //------------------------------------------------------------
+    // Входы DUT
+    //------------------------------------------------------------
+    // ADC интерфейс
+    wire                       clk_adc;
+    wire                       adc_otr;
+    wire [ADC_DATA_WIDTH-1:0]  adc_data;
+    
+    //------------------------------------------------------------
+    // Выходы
+    //------------------------------------------------------------
+    // Статусы
+    wire mmcm_locked;
+    wire workflow_done;
+    wire processing_done;
+    // DAC интерфейс
+    wire                       clk_dac;
+    wire                       dac_wrt;
+    wire [DAC_DATA_WIDTH-1:0]  dac_data;
+    // AXI-S интерфейс для данных
+    axis_if axis_accumulator_if (
+        .clk(clk_eth_phy),
+        .rst_n(rst_n)
+    );
+    //------------------------------------------------------------
+    // Внутренние сигналы тестбенча
+    //------------------------------------------------------------
+    // Интерфейс хендшейка с MAC-PHY
+    wire  send_request;
+    logic request_ready;
+    // Сигнал между ЦАП и АЦП
+    real signal_voltage;
+    
+    //------------------------------------------------------------
+    // Virtual DAC
+    //------------------------------------------------------------
+    virtual_dac_model #( // default voltage range is +/- 5V
+        .DAC_DATA_WIDTH(DAC_DATA_WIDTH)
+        // ,.VOLTAGE_GAIN(2)
+    ) virtual_dac (
+        .clk_i(clk_dac),
+        .wrt_i(dac_wrt),
+        .data_i(dac_data),
+        .voltage_o(signal_voltage)
+    );
+
+    //------------------------------------------------------------
+    // Virtual ADC
+    //------------------------------------------------------------
+    virtual_adc_model #( // default voltage range is +/- 5V
+        .ADC_DATA_WIDTH(ADC_DATA_WIDTH)
+    ) virtual_adc (
+        .clk_i(clk_adc),
+        .voltage_i(signal_voltage),
+        .otr_o(adc_otr),
+        .data_o(adc_data)
+    );
+
+    //------------------------------------------------------------
+    // Statistics processing
+    //------------------------------------------------------------
+
+    //------------------------------------------------------------
+    // Config handler
+    //------------------------------------------------------------
+
+    //------------------------------------------------------------
+    // DUT
+    //------------------------------------------------------------
+    reflectometer_top #(
+        .DAC_DATA_WIDTH(DAC_DATA_WIDTH),
+        .ADC_DATA_WIDTH(ADC_DATA_WIDTH),
+        .PACK_FACTOR(PACK_FACTOR),
+        .PROCESS_MODE(PROCESS_MODE),
+        .ZERO_LEVEL(ZERO_LEVEL),
+        .ACCUM_WIDTH(ACCUM_WIDTH),
+        .N_MAX(N_MAX),
+        .PACKET_SIZE(PACKET_SIZE)
+    ) DUT (
+        .clk_in(clk_ref),
+        .rst_n(rst_n),
+
+        // Status
+        .locked(mmcm_locked),
+        .workflow_done(workflow_done),
+        .processing_done(processing_done),
+
+        // Accumulator AXI-S bus
+        .clk_axis_accumulator(clk_eth_phy), //  GMII PHY RX clock    
+        .axis_accumulator(axis_accumulator_if.master),
+
+        // Control AXI-S bus
+        .clk_axis_control(clk_eth_phy), //  GMII PHY TX clock  
+        .axis_control(axis_control_if.slave),
+        .window_size(window_size_port),  // direct signal crutch (old controller)
+        
+        // RTL-MAC handshake
+        .request_ready(request_ready),
+        .send_request(send_request),
+
+        // DAC
+        .dac_clk_o(clk_dac),
+        .dac_data(dac_data),
+        .dac_wrt(dac_wrt),
+
+        // ADC
+        .adc_clk_o(clk_adc),
+        .adc_data(adc_data),
+        .adc_otr(adc_otr)
+    );
+
+    //------------------------------------------------------------
+    // Тактовые сигналы
+    //------------------------------------------------------------
+    initial begin
+        forever #(CLK_REF_PERIOD/2) clk_ref = ~clk_ref;
+    end
+    initial begin
+        forever #(CLK_ETH_PHY_PERIOD/2) clk_eth_phy = ~clk_eth_phy;
+    end
+
+    //------------------------------------------------------------
+    // Таски для тестирования
+    //------------------------------------------------------------
+    // Таски работы с AXI-Stream
+    task automatic dut_soft_reset(virtual axis_if#(8).tb vif);
+        logic [7:0] tx_packet[];
+        tx_packet = '{8'h0f};
+        vif.master_send(tx_packet);
+    endtask
+
+    task automatic dut_start(virtual axis_if#(8).tb vif);
+        logic [7:0] tx_packet[];
+        tx_packet = '{8'hf0};
+        vif.master_send(tx_packet);
+    endtask
+    
+    task automatic dut_send_system_config(
+        virtual axis_if#(8).tb vif,
+        input logic [31:0] pulse_width,
+        input logic [31:0] pulse_period,
+        input logic [15:0] pulse_num,
+        input logic [13:0] pulse_height, // achtung! p_height strictly must have 14 bits of width
+        input logic [31:0] pulse_period_adc,
+        input logic [31:0] window_size
+    );
+        // Создаем временный фиксированный массив и упаковываем всё одной строкой
+        logic [7:0] tx_packet[];
+
+        // Ахтунг, 14-битный ЦАП захардкожен
+        if (DAC_DATA_WIDTH != 14)
+            $warning("[WARNING] -dut_send_system_config- Default pulse height (DAC bitwidth) is equal to 14. Be aware, controller packet structure is coded for 14 bits");
+
+        tx_packet = '{
+            8'h88, // Команда
+            pulse_width[7:0],  pulse_width[15:8],  pulse_width[23:16],  pulse_width[31:24],
+            pulse_period[7:0], pulse_period[15:8], pulse_period[23:16], pulse_period[31:24],
+            pulse_num[7:0],    pulse_num[15:8], pulse_height[7:0], 8'({2'b00, pulse_height[13:8]}),
+            pulse_period_adc[7:0], pulse_period_adc[15:8], pulse_period_adc[23:16], pulse_period_adc[31:24]
+        };
+        
+        vif.master_send(tx_packet);
+
+        // TODO remove for new controller
+        window_size_port = window_size;
+    endtask
+
+    // Таски сбора статистики
+    task automatic dut_read_output(
+        virtual axis_if#(8).tb vif,
+        input   int     sample_num,
+        input   int     window_size,
+        input   bit     randomize_recv_delays,
+        output  int     output_data[]
+    );
+        logic [7:0]             rx_packet[];
+        logic [ACCUM_WIDTH-1:0] data_packet[];
+        int                     numbers_per_packet = PACKET_SIZE/(ACCUM_WIDTH/8);
+        int                     packet_num = $ceil(real'(sample_num / window_size) / real'(numbers_per_packet));
+        int timeout_flag = 0;
+        int packet_counter = 0;
+
+        if (sample_num % window_size) begin
+            $error("-dut_read_output- Sample_num must be multiple of window_size: %0d %% %0d = %0d", sample_num, window_size, sample_num % window_size);
+            $finish;
+        end
+
+        data_packet = new[numbers_per_packet];
+        output_data = new[numbers_per_packet * packet_num];
+        
+        // count send_request pulses (equal to number of packets)
+        fork
+            begin : packet_counter_proc
+                forever begin
+                    @(posedge clk_eth_phy);
+                    if(send_request === 1)
+                        packet_counter++;
+                end
+            end
+        join_none
+
+        // Wait until reflectometer done sampling and averaging
+        wait(processing_done == 1);
+
+        // recv loop
+        // если число пакетов превышает заложенное предрассчитанное значение -- ошибка
+        fork : recv_loop_proc
+            begin
+                // packet recv loop
+                forever begin
+                    if (packet_counter > packet_num) begin
+                        $error("-dut_read_output- Packet overflow detected. Number of data packets exceeds expected amount of packets");
+                        $finish;
+                    end
+
+                    if (randomize_recv_delays)
+                        repeat($urandom_range(0, 500)) @(posedge clk_eth_phy);
+                    
+                    timeout_flag = 0;
+                    fork : receive_packet_timeout
+                        begin
+                            request_ready = 1;
+                            vif.slave_recv(rx_packet);
+                            request_ready = 0;
+                        end
+                        begin
+                            repeat(REQUEST_TIMEOUT) @(posedge clk_eth_phy);
+                            timeout_flag = 1;
+                        end
+                    join_any
+
+                    disable receive_packet_timeout;
+                    if (timeout_flag) begin
+                        $error("-dut_read_output- Timeout detected when receiving packet");
+                        $finish;
+                    end
+
+                    if (rx_packet.size() != PACKET_SIZE) begin
+                        $error("-dut_read_output- Wrong packet size received: %0d bytes received, %0d bytes expected", rx_packet.size(), PACKET_SIZE);
+                        $finish;
+                    end
+                    
+                    // unpack values
+                    data_packet = {<< byte {rx_packet}};
+                    data_packet = {<< ACCUM_WIDTH {data_packet}};
+
+                    // copy and convert values
+                    for (int j = 0; j < data_packet.size(); j++) begin
+                        output_data[(packet_counter-1) * data_packet.size() + j] = int'(data_packet[j]);
+                    end
+
+                end
+            end
+            begin
+                // IP workflow completion event
+                wait(workflow_done == 1);
+            end
+        join_any
+
+        disable recv_loop_proc;
+        disable packet_counter_proc;
+
+        if (packet_counter != packet_num) begin
+            $error("-dut_read_output- Wrong number of packets received: %0d received, %0d expected", packet_counter, packet_num);
+            $finish;
+        end
+
+        wait(processing_done == 0);
+
+    endtask
+
+    //------------------------------------------------------------
+    // Функции и таски для верификации сигналов
+    //------------------------------------------------------------
+    // Таска генерации идеального тестового сигнала
+    task automatic reference_signal(
+        input int pulse_width,
+        input int pulse_height,
+        input int pulse_period_adc,
+        input int window_size,
+        output real result[]
+    );
+        /*
+            Globals:
+            ADC and DAC clock periods,
+            Virtual ADC and DAC voltage steps
+
+            Task developed with assumption that first discrete values of DAC and ADC 
+            are syncrhonized at t==0 and started simultaneously.
+
+            Gains and biases of virtual ADC & DAC are default and ranges are [-5V;5V].
+            Bitwidths may be altered.
+
+            Returned result[] array is an array of sums of voltage potentials in discrete time points.
+            Discrete samples summed over a time window.
+            
+            result[time] = (voltage)
+        */
+
+        int sample_num = pulse_period_adc / window_size; // total averaged output samples from accumulator
+        
+        real current_signal_sample, partial_sum;
+        real ref_signal_active_voltage  = virtual_dac.code_to_voltage(pulse_height);
+        real ref_signal_zero_voltage    = virtual_dac.code_to_voltage(ZERO_LEVEL);
+
+        if (pulse_period_adc % window_size) begin
+            $error("-reference_signal- pulse_period_adc must be multiple of window_size: %0d %% %0d = %0d", pulse_period_adc, window_size, pulse_period_adc % window_size);
+            $finish;
+        end
+
+        result = new[sample_num];
+        partial_sum = 0;
+
+        for (int i = 0; i < pulse_period_adc; i++) begin
+            // var i in ADC timespace
+            // i == 0 is a t0 of pulse generation and sampling
+            current_signal_sample = (i*CLK_ADC_PERIOD <= pulse_width*CLK_DAC_PERIOD) ? ref_signal_active_voltage : ref_signal_zero_voltage;
+            partial_sum += current_signal_sample;
+            if (i % window_size == (window_size-1)) begin
+                result[i / window_size] = partial_sum;
+                partial_sum = 0;
+            end
+        end
+    endtask
+
+    // Функция проверки размеров выборок
+    function automatic void check_size(
+        input real a[],
+        input real b[]
+    );
+        if (a.size() != b.size())
+            $fatal(1, "Array size mismatch: %0d != %0d",
+                a.size(), b.size());
+        
+        if (a.size() == 0)
+            $error(1, "Empty array");
+    endfunction
+
+    // Среднее по выборке
+    function automatic real array_mean(
+        input real a[]
+    );
+        real sum = 0.0;
+
+        foreach (a[i])
+            sum += a[i];
+        
+        return sum / a.size();
+    endfunction
+
+    // MSE двух выборок
+    function automatic real calc_mse(
+        input real a[],
+        input real b[]
+    );
+        real sum = 0.0;
+
+        check_size(a, b);
+
+        foreach (a[i]) begin
+            real err;
+            err = a[i] - b[i];
+            sum += err * err;
+        end
+
+        return sum / a.size();
+    endfunction
+
+    // NRMSE двух выборок (нормирование RMSE)
+    function automatic real calc_nrmse(
+        input real a[],
+        input real b[]
+    );
+        const real EPS = 1e-12;
+        real mse, ms = 0;
+
+        mse = calc_mse(a, b);
+        
+        foreach (a[i]) begin
+            ms += a[i] * a[i];
+        end
+        ms /= a.size();
+
+        return $sqrt(mse / (ms + EPS));
+    endfunction
+
+    // Функция модуля
+    function automatic real abs_f(input real x);
+        return (x < 0.0) ? -x : x;
+    endfunction
+
+    // Максимальная абсолютная ошибка
+    function automatic real calc_max_error(
+        input real a[],
+        input real b[]
+    );
+        real max_err = 0.0;
+
+        check_size(a, b);
+
+        foreach (a[i]) begin
+            real err;
+
+            err = abs_f(a[i] - b[i]);
+
+            if (err > max_err)
+                max_err = err;
+        end
+
+        return max_err;
+    endfunction
+
+    // Коэффициент корреляции Пирсона
+    function automatic real calc_pearson(
+        input real a[],
+        input real b[]
+    );
+        real mean_a;
+        real mean_b;
+        real numerator = 0.0;
+        real denom_a   = 0.0;
+        real denom_b   = 0.0;
+
+        check_size(a, b);
+
+        mean_a = array_mean(a);
+        mean_b = array_mean(b);
+
+        foreach (a[i]) begin
+            real da;
+            real db;
+
+            da = a[i] - mean_a;
+            db = b[i] - mean_b;
+
+            numerator += da * db;
+            denom_a += da * da;
+            denom_b += db * db;
+        end
+
+        if ((denom_a == 0.0) || (denom_b == 0.0))
+            return 0.0;
+
+        return numerator / $sqrt(denom_a * denom_b);
+    endfunction
+
+    // Вспомогательная функция для вывода массива
+    function automatic void display_array_f(input real a[]);
+        $write("\t");
+        foreach(a[i])
+            $write("%f ", a[i]);
+        $write("\n");
+    endfunction
+
+    // Вспомогательная функция для вывода массива
+    function automatic void display_array(input int a[]);
+        $write("\t");
+        foreach(a[i])
+            $write("%0d ", a[i]);
+        $write("\n");
+    endfunction
+
+    // Основная таска типового теста
+    task automatic run_test_case(
+        virtual axis_if#(8).tb ctrl_vif,
+        virtual axis_if#(8).tb accum_vif,
+        input int pulse_width,
+        input int pulse_period,
+        input int pulse_num,
+        input int pulse_height,
+        input int pulse_period_adc,
+        input int window_size,
+        input bit rand_recv_delays,
+        input bit use_reset,
+        output int result
+    );
+        int output_data[];              // raw accum values
+        real output_signal_v[];         // accum values after voltage conversion
+        real reference_signal_v[];      // reference signal voltage values
+        real nrmse, pearson, max_err;   // error and correlation metrics
+    
+        if (use_reset) begin
+            dut_soft_reset(ctrl_vif);
+            #100;
+        end
+        
+        dut_send_system_config(
+            .vif(ctrl_vif),
+            .pulse_width(pulse_width),
+            .pulse_period(pulse_period),
+            .pulse_num(pulse_num),
+            .pulse_height(pulse_height),
+            .pulse_period_adc(pulse_period_adc),
+            .window_size(window_size)
+        );
+        #100;
+
+        dut_start(ctrl_vif);
+
+        dut_read_output(
+            .vif(accum_vif),
+            .sample_num(pulse_period_adc),
+            .window_size(window_size),
+            .randomize_recv_delays(rand_recv_delays),
+            .output_data(output_data)
+        );
+        // actual size of payload is pulse_period_adc / window_size
+        output_signal_v = new[pulse_period_adc / window_size];
+        
+        `ifdef DEBUG
+            $display("[TB] Output data stream");
+            display_array(output_data);
+        `endif
+
+        // voltage conversion
+        begin
+            // zero level for partial sum
+            real zero_level_bias = window_size * virtual_adc.ZERO_CODE;
+            // common voltage multiplier for step & amplifier
+            real voltage_multiplier = virtual_adc.VOLTAGE_STEP / virtual_adc.VOLTAGE_GAIN;
+            // array conversion
+            foreach (output_signal_v[i]) begin
+                real average_code_per_pulse = real'(output_data[i]) / pulse_num;
+                output_signal_v[i] = (average_code_per_pulse - zero_level_bias) * voltage_multiplier;
+            end
+        end
+
+        reference_signal(
+            .pulse_width(pulse_width),
+            .pulse_height(pulse_height),
+            .pulse_period_adc(pulse_period_adc),
+            .window_size(window_size),
+            .result(reference_signal_v)
+        );
+
+        `ifdef DEBUG
+            $display("[TB] Output signal");
+            display_array_f(output_signal_v);
+            $display("[TB] Reference signal");
+            display_array_f(reference_signal_v);
+        `endif
+
+        nrmse = calc_nrmse(output_signal_v, reference_signal_v);
+        pearson = calc_pearson(output_signal_v, reference_signal_v);
+        max_err = calc_max_error(output_signal_v, reference_signal_v);
+        
+        `ifdef DEBUG
+            $display("[TB] Metrics:\n\tNRMSE = %0.4f\t|\tPearson = %0.4f\t|\tMax error = %0.4f", nrmse, pearson, max_err);
+        `endif
+
+        // check metrics
+        result = 0;
+        // if (pearson < PEARSON_THRESHOLD)
+        //     result += 1;
+        if (nrmse > NRMSE_THRESHOLD)
+            result += 2;
+        /* 
+            Max error not used in evaluation because of fast pulse edge falling 
+            resulting in plain difference between active signal level and zero level
+            For ex.: zero_level = 0x00 = -5V. pulse_height = 2^14-1 = 0x3fff = 5V
+            In some cases like jitter this may cause max error = 5 - (-5) = 10(V)
+            This cases are hardly traceble, thus max error not used in eval.
+
+            Pearson not used in evaluation because it only shows correlation of changing signals. Tests broke on static signals. 
+            
+            Pearson and max err remain in test for info.
+        */
+    endtask
+
+    //------------------------------------------------------------
+    // ОСНОВНОЙ ПРОЦЕСС ТЕСТИРОВАНИЯ
+    //------------------------------------------------------------
+    initial begin
+        int result_flag;
+        int total_failed_tests = 0, total_tests = 0;
+        
+        automatic virtual axis_if.tb control_vif = axis_control_if.tb;
+        automatic virtual axis_if.tb accumulator_vif = axis_accumulator_if.tb;
+        
+        $info("[TB] DUT initializaton");
+        // Инициализация
+        request_ready = 0;
+        rst_n = 0;
+        #100;
+        rst_n = 1;
+        wait(mmcm_locked === 1'b1);
+        #150;
+        $info("[TB] MMCM locked");
+
+        // Meause periods because actual values hardcoded in IP
+        fork
+            `MEASURE_CLK(DUT.clk_sampler, CLK_ADC_PERIOD);
+            `MEASURE_CLK(DUT.clk_generator, CLK_DAC_PERIOD);
+        join
+        $info("[TB] ADC & DAC clock periods measured: ADC_period = %0.3f, DAC_period = %0.3f", CLK_ADC_PERIOD, CLK_DAC_PERIOD);
+
+        // Тесты
+        $info("[TB] Tests start");
+        $info("[TB] Simple test run");
+        run_test_case(
+            .ctrl_vif(control_vif),
+            .accum_vif(accumulator_vif),
+            .pulse_width(4000),
+            .pulse_period(10000),
+            .pulse_num(5),
+            .pulse_height(12000),
+            .pulse_period_adc(6000),
+            .window_size(10),
+            .rand_recv_delays(1),
+            .use_reset(1),
+            .result(result_flag)
+        );
+        `ERR_CHECK
+
+        $info("[TB] Random test run");
+        for (int i = 0; i < TEST_NUM; i++) begin
+            int pulse_width, pulse_period, pulse_num, pulse_height, pulse_period_adc, window_size;
+            bit rand_recv_delays, use_reset;
+
+            // Генерируемые параметры
+            pulse_period        = $urandom_range(500, 5000);
+            pulse_width         = $urandom_range(50, pulse_period);
+            pulse_num           = $urandom_range(1, 10);
+            pulse_height        = $urandom_range(0, 2**DAC_DATA_WIDTH-1);
+            window_size         = $urandom_range(1, 11);
+            pulse_period_adc    = $urandom_range(50, N_MAX-1) * window_size;
+            rand_recv_delays    = 1;
+            use_reset           = 1;    //  ($urandom_range(0, 10) >= 9);
+
+            $display("Test #%0d", total_tests);
+            `ifdef DEBUG
+                $display("Parameters:\n\tpulse_width=%0d\n\tpulse_period=%0d\n\tpulse_num=%0d\n\tpulse_height=%0d\n\tpulse_period_adc=%0d\n\twindow_size=%0d\n\trand_recv_delays=%0d\n\tuse_reset=%0d",
+                        pulse_width, pulse_period, pulse_num, pulse_height, pulse_period_adc, window_size, rand_recv_delays, use_reset);
+            `endif
+
+            run_test_case(
+                .ctrl_vif(control_vif),
+                .accum_vif(accumulator_vif),
+                .pulse_width(pulse_width),
+                .pulse_period(pulse_period),
+                .pulse_num(pulse_num),
+                .pulse_height(pulse_height),
+                .pulse_period_adc(pulse_period_adc),
+                .window_size(window_size),
+                .rand_recv_delays(rand_recv_delays),
+                .use_reset(use_reset),
+                .result(result_flag)
+            );
+
+            `ERR_CHECK
+            if (result_flag) begin
+                $display("Parameters:\n\tpulse_width=%0d\n\tpulse_period=%0d\n\tpulse_num=%0d\n\tpulse_height=%0d\n\tpulse_period_adc=%0d\n\twindow_size=%0d\n\trand_recv_delays=%0d\n\tuse_reset=%0d",
+                    pulse_width, pulse_period, pulse_num, pulse_height, pulse_period_adc, window_size, rand_recv_delays, use_reset);
+            end
+        end
+
+        $info("[TB] Corner case test run");
+        run_test_case(
+            .ctrl_vif(control_vif),
+            .accum_vif(accumulator_vif),
+            .pulse_width(0),
+            .pulse_period(1000),
+            .pulse_num(5),
+            .pulse_height(12000),
+            .pulse_period_adc(600),
+            .window_size(10),
+            .rand_recv_delays(0),
+            .use_reset(1),
+            .result(result_flag)
+        );
+        `ERR_CHECK
+
+        run_test_case(
+            .ctrl_vif(control_vif),
+            .accum_vif(accumulator_vif),
+            .pulse_width(1000),
+            .pulse_period(1000),
+            .pulse_num(5),
+            .pulse_height(12000),
+            .pulse_period_adc(600),
+            .window_size(10),
+            .rand_recv_delays(0),
+            .use_reset(1),
+            .result(result_flag)
+        );
+        `ERR_CHECK
+
+        run_test_case(
+            .ctrl_vif(control_vif),
+            .accum_vif(accumulator_vif),
+            .pulse_width(500),
+            .pulse_period(1000),
+            .pulse_num(5),
+            .pulse_height(2**(DAC_DATA_WIDTH-1)),
+            .pulse_period_adc(600),
+            .window_size(10),
+            .rand_recv_delays(0),
+            .use_reset(1),
+            .result(result_flag)
+        );
+        `ERR_CHECK
+
+        run_test_case(
+            .ctrl_vif(control_vif),
+            .accum_vif(accumulator_vif),
+            .pulse_width(500),
+            .pulse_period(1000),
+            .pulse_num(5),
+            .pulse_height(15000),
+            .pulse_period_adc(10),
+            .window_size(1),
+            .rand_recv_delays(0),
+            .use_reset(1),
+            .result(result_flag)
+        );
+        `ERR_CHECK
+
+        $display("[TB] Tests done. [%0d/%0d] tests passed, %0d failed", total_tests - total_failed_tests, total_tests, total_failed_tests);
+        if (!total_failed_tests)
+            $display("[TB] ALL PASSED");
+        $finish;
+    end
+endmodule

designs/reflectometer_base/reflectometer_tb_behav.wcfg

@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<wave_config>
+   <wave_state>
+   </wave_state>
+   <db_ref_list>
+      <db_ref path="reflectometer_tb_behav.wdb" id="1">
+         <top_modules>
+            <top_module name="glbl" />
+            <top_module name="reflectometer_tb" />
+         </top_modules>
+      </db_ref>
+   </db_ref_list>
+   <zoom_setting>
+      <ZoomStartTime time="0.000 ns"></ZoomStartTime>
+      <ZoomEndTime time="1,506.001 ns"></ZoomEndTime>
+      <Cursor1Time time="1,000.000 ns"></Cursor1Time>
+   </zoom_setting>
+   <column_width_setting>
+      <NameColumnWidth column_width="196"></NameColumnWidth>
+      <ValueColumnWidth column_width="76"></ValueColumnWidth>
+   </column_width_setting>
+   <WVObjectSize size="7" />
+   <wvobject type="logic" fp_name="/reflectometer_tb/rst_n">
+      <obj_property name="ElementShortName">rst_n</obj_property>
+      <obj_property name="ObjectShortName">rst_n</obj_property>
+   </wvobject>
+   <wvobject type="logic" fp_name="/reflectometer_tb/mmcm_locked">
+      <obj_property name="ElementShortName">mmcm_locked</obj_property>
+      <obj_property name="ObjectShortName">mmcm_locked</obj_property>
+   </wvobject>
+   <wvobject type="group" fp_name="group28">
+      <obj_property name="label">Signal</obj_property>
+      <obj_property name="DisplayName">label</obj_property>
+      <wvobject type="array" fp_name="/reflectometer_tb/dac_data">
+         <obj_property name="ElementShortName">dac_data[13:0]</obj_property>
+         <obj_property name="ObjectShortName">dac_data[13:0]</obj_property>
+      </wvobject>
+      <wvobject type="other" fp_name="/reflectometer_tb/signal_voltage">
+         <obj_property name="ElementShortName">signal_voltage</obj_property>
+         <obj_property name="ObjectShortName">signal_voltage</obj_property>
+      </wvobject>
+      <wvobject type="array" fp_name="/reflectometer_tb/adc_data">
+         <obj_property name="ElementShortName">adc_data[11:0]</obj_property>
+         <obj_property name="ObjectShortName">adc_data[11:0]</obj_property>
+      </wvobject>
+      <wvobject type="logic" fp_name="/reflectometer_tb/adc_otr">
+         <obj_property name="ElementShortName">adc_otr</obj_property>
+         <obj_property name="ObjectShortName">adc_otr</obj_property>
+      </wvobject>
+   </wvobject>
+   <wvobject type="logic" fp_name="/reflectometer_tb/send_request">
+      <obj_property name="ElementShortName">send_request</obj_property>
+      <obj_property name="ObjectShortName">send_request</obj_property>
+   </wvobject>
+   <wvobject type="logic" fp_name="/reflectometer_tb/request_ready">
+      <obj_property name="ElementShortName">request_ready</obj_property>
+      <obj_property name="ObjectShortName">request_ready</obj_property>
+   </wvobject>
+   <wvobject type="group" fp_name="group51">
+      <obj_property name="label">Controller</obj_property>
+      <obj_property name="DisplayName">label</obj_property>
+      <obj_property name="isExpanded"></obj_property>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_control_if/clk">
+         <obj_property name="ElementShortName">clk</obj_property>
+         <obj_property name="ObjectShortName">clk</obj_property>
+      </wvobject>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_control_if/rst_n">
+         <obj_property name="ElementShortName">rst_n</obj_property>
+         <obj_property name="ObjectShortName">rst_n</obj_property>
+      </wvobject>
+      <wvobject type="array" fp_name="/reflectometer_tb/axis_control_if/tdata">
+         <obj_property name="ElementShortName">tdata[7:0]</obj_property>
+         <obj_property name="ObjectShortName">tdata[7:0]</obj_property>
+      </wvobject>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_control_if/tvalid">
+         <obj_property name="ElementShortName">tvalid</obj_property>
+         <obj_property name="ObjectShortName">tvalid</obj_property>
+      </wvobject>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_control_if/tlast">
+         <obj_property name="ElementShortName">tlast</obj_property>
+         <obj_property name="ObjectShortName">tlast</obj_property>
+      </wvobject>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_control_if/tready">
+         <obj_property name="ElementShortName">tready</obj_property>
+         <obj_property name="ObjectShortName">tready</obj_property>
+      </wvobject>
+   </wvobject>
+   <wvobject type="group" fp_name="group52">
+      <obj_property name="label">Accumulator</obj_property>
+      <obj_property name="DisplayName">label</obj_property>
+      <obj_property name="isExpanded"></obj_property>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_accumulator_if/clk">
+         <obj_property name="ElementShortName">clk</obj_property>
+         <obj_property name="ObjectShortName">clk</obj_property>
+      </wvobject>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_accumulator_if/rst_n">
+         <obj_property name="ElementShortName">rst_n</obj_property>
+         <obj_property name="ObjectShortName">rst_n</obj_property>
+      </wvobject>
+      <wvobject type="array" fp_name="/reflectometer_tb/axis_accumulator_if/tdata">
+         <obj_property name="ElementShortName">tdata[7:0]</obj_property>
+         <obj_property name="ObjectShortName">tdata[7:0]</obj_property>
+      </wvobject>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_accumulator_if/tvalid">
+         <obj_property name="ElementShortName">tvalid</obj_property>
+         <obj_property name="ObjectShortName">tvalid</obj_property>
+      </wvobject>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_accumulator_if/tlast">
+         <obj_property name="ElementShortName">tlast</obj_property>
+         <obj_property name="ObjectShortName">tlast</obj_property>
+      </wvobject>
+      <wvobject type="logic" fp_name="/reflectometer_tb/axis_accumulator_if/tready">
+         <obj_property name="ElementShortName">tready</obj_property>
+         <obj_property name="ObjectShortName">tready</obj_property>
+      </wvobject>
+   </wvobject>
+</wave_config>

rtl/accum/src/accum.sv

@@ -5,7 +5,6 @@ module accumulator
     parameter DATA_WIDTH = 12,
     parameter ACCUM_WIDTH = 32,
     parameter N_MAX = 4096,
-    parameter WINDOW_SIZE = 4,
     parameter PACKET_SIZE = 8,
     parameter READ_BATCH_SIZE =(PACKET_SIZE*8)/(ACCUM_WIDTH)
     )
@@ -17,15 +16,18 @@ module accumulator
     input start,
     input [31:0] smp_num,
     input [15:0] seq_num,
+    input [31:0] window_size,
 
     output [ACCUM_WIDTH-1:0] out_data,
     output out_valid,
     output readout_begin,
     input batch_req,
-    input finish
+    input finish,
+    output logic accum_done
     );
 
     logic [31:0] smp_num_reg, cnt_smp_num;
+    logic [31:0] window_size_reg;
     logic [15:0] seq_num_reg, cnt_seq_num;
     logic [15:0] cnt_addr, addra, addrb;
 
@@ -39,10 +41,6 @@ module accumulator
     logic out_valid_reg;
     logic finish_reg, finish_buf;
 
-    // registers for port b data request
-    reg req_data_b;
-    reg [15:0] req_addr_b;
-
     typedef enum logic [3:0] {
         IDLE,
         INIT_MEM,
@@ -58,18 +56,84 @@ module accumulator
     } wr_state_t;
     (* MARK_DEBUG="true" *) wr_state_t wr_state;
 
+    // One word per clock accumulation pipeline
+    // On every sum_valid in ACCUM we launch a BRAM read for cnt_addr
+    // On the next clock the saved sum_data is added to doutb and written back
+    logic accum_pipe_valid;
+    logic [15:0] accum_pipe_addr;
+    logic [ACCUM_WIDTH-1:0] accum_pipe_data;
+
+    // case smp_num // window_size == 1
+    // Then the next sequence can read the same address it is written
+    logic accum_pipe_bypass_valid;
+    logic [ACCUM_WIDTH-1:0] accum_pipe_bypass_data;
+
+    logic accum_accept_last;
+    logic accum_accept_last_all;
+    logic [ACCUM_WIDTH-1:0] accum_write_base;
+    logic [ACCUM_WIDTH-1:0] accum_write_value;
+
+    wire [31:0] window_size_safe = (window_size == 32'd0) ? 32'd1 : window_size;
+    wire start_accept = start && (wr_state == IDLE);
+
+    assign accum_accept_last     = (cnt_smp_num + window_size_reg >= smp_num_reg);
+    assign accum_accept_last_all = accum_accept_last && (cnt_seq_num == seq_num_reg - 1);
+    assign accum_write_base      = accum_pipe_bypass_valid ? accum_pipe_bypass_data : data_bram_out;
+    assign accum_write_value     = accum_pipe_data + accum_write_base;
+
+    // Memory controls to XPM
+    // In accumulation/init states they are driven directly from the current
+    // state and pipeline registers. That avoids an extra register stage
+    logic mem_wea;
+    logic mem_enb;
+    logic [15:0] mem_addra;
+    logic [15:0] mem_addrb;
+    logic [ACCUM_WIDTH-1:0] mem_dina;
+
+    assign mem_wea = (wr_state == INIT_MEM) ? valid_data :
+                     (wr_state == ACCUM)    ? accum_pipe_valid :
+                                              1'b0;
+
+    assign mem_addra = (wr_state == INIT_MEM) ? cnt_addr :
+                       (wr_state == ACCUM)    ? accum_pipe_addr :
+                                                addra;
+
+    assign mem_dina = (wr_state == INIT_MEM) ? data :
+                      (wr_state == ACCUM)    ? accum_write_value :
+                                               data_bram_in;
+
+    assign mem_enb = (wr_state == ACCUM) ? valid_data : enb;
+    assign mem_addrb = (wr_state == ACCUM) ? cnt_addr : addrb;
+
+    // registers for port b data request
+    reg req_data_b;
+    reg [15:0] req_addr_b;
+
     always @(posedge clk_in) begin
         if (rst) begin
             smp_num_reg <= '0;
             cnt_smp_num <= '0;
+            window_size_reg <= 32'd1;
             seq_num_reg <= '0;
             cnt_seq_num <= '0;
             cnt_addr <= '0;
+            addra <= '0;
+            addrb <= '0;
+            data_bram_in <= '0;
             wea <= 0;
             enb <= 0;
             wr_state <= IDLE;
             finish_reg <= 0;
+            finish_buf <= 0;
+            readout_begin_reg <= 0;
+            out_data_reg <= '0;
             out_valid_reg <= 0;
+            accum_pipe_valid <= 0;
+            accum_pipe_addr <= '0;
+            accum_pipe_data <= '0;
+            accum_pipe_bypass_valid <= 0;
+            accum_pipe_bypass_data <= '0;
+            accum_done <= 0;
         end else begin
             finish_buf <= finish;
 
@@ -83,83 +147,138 @@ module accumulator
                 readout_begin_reg <= 0;
                 finish_reg <= 0;
                 out_valid_reg <= 0;
+                accum_pipe_valid <= 0;
+                accum_pipe_bypass_valid <= 0;
+                accum_done <= 0;
+                cnt_smp_num <= '0;
+                cnt_seq_num <= '0;
+                cnt_addr <= '0;
+                addrb <= '0;
                 if (start) begin
                     smp_num_reg <= smp_num;
                     seq_num_reg <= seq_num;
+                    window_size_reg <= window_size_safe;
                     wr_state <= INIT_MEM;
                 end
 
             end
+
             INIT_MEM: begin
-                // first run to initialize memory with first batch of values
+                // First sequence 
                 wea <= 0;
+                enb <= 0;
+                out_valid_reg <= 0;
+                accum_pipe_valid <= 0;
+                accum_pipe_bypass_valid <= 0;
+                accum_done <= 0;
+
                 if (valid_data) begin
+                    // mem_wea/mem_addra/mem_dina do the actual write in this clock
                     data_bram_in <= data;
                     addra <= cnt_addr;
                     wea <= 1;
-                    cnt_addr <= cnt_addr + 1;
-                    cnt_smp_num <= cnt_smp_num + WINDOW_SIZE;
 
-                end
+                    if (cnt_smp_num + window_size_reg >= smp_num_reg) begin
-                if (cnt_smp_num >= smp_num_reg) begin
+                        cnt_smp_num <= '0;
-                    wr_state <= BEGIN_SEQ;
+                        cnt_addr <= '0;
+
+                        if (seq_num_reg <= 16'd1) begin
+                            cnt_seq_num <= '0;
+                            addrb <= '0;
+                            accum_done <= 1;
+                            wr_state <= READOUT_START;
+                        end else begin
+                            // start further accumulation
+                            cnt_seq_num <= 16'd1;
+                            wr_state <= ACCUM;
+                        end
+                    end else begin
+                        cnt_smp_num <= cnt_smp_num + window_size_reg;
+                        cnt_addr <= cnt_addr + 1;
+                    end
                 end
 
             end
+
             BEGIN_SEQ: begin
-                // start new acc seq
+                // FIXME: unused
                 wea <= 0;
                 enb <= 0;
-                if (cnt_seq_num == seq_num_reg - 1) begin
+                wr_state <= ACCUM;
-                    cnt_seq_num <= '0;
-                    cnt_smp_num <= '0;
-                    cnt_addr <= '0;
-                    wr_state <= READOUT_START;
-                    addrb <= '0;
-                    enb <= 0;
-                end else begin
-                    // beginning of new data sequence
-                    cnt_seq_num <= cnt_seq_num + 1;
-                    cnt_smp_num <= '0;
-                    cnt_addr <= '0;
-                    wea <= 0;
-                    addrb <= 0;
-                    wr_state <= REQ_WORD_B;
-                end
             end
 
             REQ_WORD_B: begin
-                // pre-request data for port b
+                // FIXME: depr
                 wea <= 0;
-                enb <= 1;
+                enb <= 0;
-                addrb <= cnt_addr;
                 wr_state <= ACCUM;
             end
 
             ACCUM: begin
-                // sum mem+input
+                // accum pipeline
+                wea <= 0;
                 enb <= 0;
-                if (valid_data) begin
+                out_valid_reg <= 0;
-                    addra <= cnt_addr;
+
+                if (accum_pipe_valid) begin
+                    // mem_wea/mem_addra/mem_dina do the actual write this clock
+                    addra <= accum_pipe_addr;
+                    data_bram_in <= accum_write_value;
                     wea <= 1;
-                    data_bram_in <= data + data_bram_out;
+                end
-                    cnt_smp_num <= cnt_smp_num + WINDOW_SIZE;
+
-                    if (cnt_smp_num + WINDOW_SIZE >= smp_num_reg) begin
+                if (accum_done) begin
-                        wr_state <= BEGIN_SEQ;
+                    // Last input word was accepted on the previous clk
+                    accum_pipe_valid <= 0;
+                    accum_pipe_bypass_valid <= 0;
+                    cnt_smp_num <= '0;
+                    cnt_seq_num <= '0;
+                    cnt_addr <= '0;
+                    addrb <= '0;
+                    enb <= 0;
+                    wr_state <= READOUT_START;
+                end else if (valid_data) begin
+                    // mem_enb/mem_addrb launch the actual read this clock
+                    enb <= 1;
+                    addrb <= cnt_addr;
+
+                    accum_pipe_valid <= 1;
+                    accum_pipe_addr <= cnt_addr;
+                    accum_pipe_data <= data;
+
+                    // case window_size=1 && smp_num is small
+                    accum_pipe_bypass_valid <= accum_pipe_valid && (accum_pipe_addr == cnt_addr);
+                    accum_pipe_bypass_data <= accum_write_value;
+
+                    if (accum_accept_last) begin
+                        cnt_smp_num <= '0;
+                        cnt_addr <= '0;
+
+                        if (cnt_seq_num == seq_num_reg - 1) begin
+                            accum_done <= 1;
+                        end else begin
+                            cnt_seq_num <= cnt_seq_num + 1;
+                        end
                     end else begin
+                        cnt_smp_num <= cnt_smp_num + window_size_reg;
                         cnt_addr <= cnt_addr + 1;
-                        wr_state <= REQ_WORD_B;
                     end
+                end else begin
+                    accum_pipe_valid <= 0;
+                    accum_pipe_bypass_valid <= 0;
                 end
             end
+
             READOUT_START: begin
                 readout_begin_reg <= 1'b1;
                 wr_state <= READOUT_AWAIT;
                 enb <= 0;
+                wea <= 0;
             end
 
             READOUT_AWAIT: begin
-                // req await + delay for every-clock readout.
+                // req await + delay for every-clock readout
+                wea <= 0;
                 if (batch_req) begin
                     enb <= 1;
                     wr_state <= READOUT_DELAY;
@@ -173,12 +292,14 @@ module accumulator
 
             READOUT_DELAY: begin
                 // wait for mem latency
+                wea <= 0;
                 addrb <= addrb + 1;
                 wr_state <= READOUT_PUT;
             end
 
             READOUT_PUT: begin
                 // main data output
+                wea <= 0;
                 if ((addrb % READ_BATCH_SIZE) == 0) begin
                     wr_state <= READOUT_LAST;
                     enb <= 0;
@@ -190,6 +311,7 @@ module accumulator
 
             READOUT_LAST: begin
                 // last word of packet
+                wea <= 0;
                 out_valid_reg <= 0;
                 out_data_reg <= data_bram_out;
                 wr_state <= READOUT_START;
@@ -198,6 +320,7 @@ module accumulator
             FINISH: begin
                 out_valid_reg <= 0;
                 enb <= 0;
+                wea <= 0;
                 wr_state <= IDLE;
             end
 
@@ -210,12 +333,13 @@ module accumulator
     adder
     #(
         .DATA_WIDTH(DATA_WIDTH),
-        .WINDOW_SIZE(WINDOW_SIZE),
         .ACCUM_WIDTH(ACCUM_WIDTH)
     ) adder_dut
     (
         .clk_in(clk_in),
         .rst(rst),
+        .start(start_accept),
+        .window_size(window_size),
         .s_axis_tdata(s_axis_tdata),
         .s_axis_tvalid(s_axis_tvalid),
         .sum_data(data),
@@ -254,14 +378,14 @@ module accumulator
 
       .doutb(data_bram_out),
 
-      .addra(addra),
+      .addra(mem_addra),
-      .addrb(addrb),
+      .addrb(mem_addrb),
       .clka(clk_in),
       .clkb(clk_in),
-      .dina(data_bram_in),
+      .dina(mem_dina),
       .ena(1'b1),
-      .enb(enb),
+      .enb(mem_enb),
-      .wea(wea)
+      .wea(mem_wea)
    );
 
     assign readout_begin = readout_begin_reg;

rtl/accum/src/accum_top.sv

@@ -5,7 +5,6 @@ module accumulator_top
     parameter DATA_WIDTH = 12,
     parameter ACCUM_WIDTH = 32,
     parameter N_MAX = 4096,
-    parameter WINDOW_SIZE = 65,
     parameter PACKET_SIZE = 1024,
     parameter READ_BATCH_SIZE =(PACKET_SIZE*8)/(ACCUM_WIDTH)
     )
@@ -22,6 +21,7 @@ module accumulator_top
     input start,
     input [31:0] smp_num,
     input [15:0] seq_num,
+    input [31:0] window_size,
 
     // eth signals
     input eth_clk_in,
@@ -34,7 +34,8 @@ module accumulator_top
     input  logic            m_axis_tready,
     output logic            m_axis_tlast,
 
-    output logic finish
+    output logic finish,
+    output logic accum_done
     );
 
     wire [ACCUM_WIDTH-1:0] out_data;
@@ -42,36 +43,68 @@ module accumulator_top
     wire readout_begin;
     wire batch_req;
 
+    logic finish_int;
+    logic finish_int_d;
+    logic finish_pulse;
+    logic calc_active;
+    logic start_accept;
+    logic [31:0] window_size_reg;
+
+    wire [31:0] window_size_safe = (window_size == 32'd0) ? 32'd1 : window_size;
+
+    assign finish_pulse = finish_int && !finish_int_d;
+    assign start_accept = start && !calc_active;
+    assign finish = finish_int;
+
+    // Keep the top copy stable for blocks that start later than the accum itself
+    always_ff @(posedge clk_in) begin
+        if (rst) begin
+            calc_active     <= 1'b0;
+            finish_int_d    <= 1'b0;
+            window_size_reg <= 32'd1;
+        end else begin
+            finish_int_d <= finish_int;
+
+            if (start_accept) begin
+                calc_active     <= 1'b1;
+                window_size_reg <= window_size_safe;
+            end else if (finish_pulse) begin
+                calc_active <= 1'b0;
+            end
+        end
+    end
+
     accumulator #(
         .DATA_WIDTH(DATA_WIDTH),
         .ACCUM_WIDTH(ACCUM_WIDTH),
         .N_MAX(N_MAX),
-        .WINDOW_SIZE(WINDOW_SIZE),
         .PACKET_SIZE(PACKET_SIZE)
     ) accum_main (
         .clk_in(clk_in),
         .rst(rst),
         .s_axis_tdata(s_axis_tdata),
         .s_axis_tvalid(s_axis_tvalid),
-        .start(start),
+        .start(start_accept),
         .smp_num(smp_num),
         .seq_num(seq_num),
+        .window_size(window_size),
         .out_data(out_data),
         .out_valid(out_valid),
         .readout_begin(readout_begin),
         .batch_req(batch_req),
-        .finish(finish)
+        .finish(finish_int),
+        .accum_done(accum_done)
     );
 
     out_axis_fifo #(
         .ACCUM_WIDTH(ACCUM_WIDTH),
-        .WINDOW_SIZE(WINDOW_SIZE),
         .PACKET_SIZE(PACKET_SIZE)
     ) output_async_fifo (
         .eth_clk_in    (eth_clk_in),
         .acc_clk_in    (clk_in),
         .rst           (rst),
         .smp_num       (smp_num),
+        .window_size   (window_size_reg),
 
         .m_axis_tdata  (m_axis_tdata),
         .m_axis_tvalid (m_axis_tvalid),
@@ -87,6 +120,6 @@ module accumulator_top
         .send_req      (send_req),
 
         .batch_req     (batch_req),
-        .finish        (finish)
+        .finish        (finish_int)
     );
-endmodule
+endmodule

rtl/accum/src/adder.sv

@@ -4,12 +4,13 @@
 module adder
 #(
     parameter DATA_WIDTH = 12,
-    parameter WINDOW_SIZE = 4,
     parameter ACCUM_WIDTH = 32
     )
 (
     input clk_in,
     input rst,
+    input start,
+    input [31:0] window_size,
     input [DATA_WIDTH-1:0] s_axis_tdata,
     input s_axis_tvalid,
     
@@ -20,7 +21,10 @@ module adder
     logic [ACCUM_WIDTH-1:0] accum, res;
     logic [DATA_WIDTH-1:0] axis_data;
     logic res_valid, axis_valid;
- (* MARK_DEBUG = "TRUE" *)   logic [15:0] cnt;
+    (* MARK_DEBUG = "TRUE" *) logic [31:0] cnt;
+    logic [31:0] window_size_reg;
+
+    wire [31:0] window_size_safe = (window_size == 32'd0) ? 32'd1 : window_size;
     
     always @(posedge clk_in) begin
         if (rst) begin
@@ -28,19 +32,32 @@ module adder
             cnt <= '0;
             res <= '0;
             res_valid <= 0;
+            axis_data <= '0;
+            axis_valid <= 0;
+            window_size_reg <= 32'd1;
         end else begin
             res_valid <= 0;
-            axis_data <= s_axis_tdata;
+
-            axis_valid <= s_axis_tvalid;
+            if (start) begin
-            if ( axis_valid) begin
+                accum <= '0;
-                if (cnt == WINDOW_SIZE-1) begin
+                cnt <= '0;
-                    res <= accum + axis_data;
+                res <= '0;
-                    res_valid <= 1;
+                axis_data <= '0;
-                    accum <= '0;
+                axis_valid <= 0;
-                    cnt <= '0;
+                window_size_reg <= window_size_safe;
-                end else begin
+            end else begin
-                    accum <= accum + axis_data;
+                axis_data <= s_axis_tdata;
-                    cnt   <= cnt + 1;
+                axis_valid <= s_axis_tvalid;
+                if (axis_valid) begin
+                    if (cnt == window_size_reg - 1) begin
+                        res <= accum + axis_data;
+                        res_valid <= 1;
+                        accum <= '0;
+                        cnt <= '0;
+                    end else begin
+                        accum <= accum + axis_data;
+                        cnt   <= cnt + 1;
+                    end
                 end
             end
         end

rtl/accum/src/out_axis_fifo.sv

@@ -1,12 +1,12 @@
 module out_axis_fifo #(
     parameter ACCUM_WIDTH = 32,
-    parameter WINDOW_SIZE = 65,
     parameter PACKET_SIZE = 1024
 ) (
     input  logic                eth_clk_in,
     input  logic                acc_clk_in,
     input  logic                rst,
     input  logic [31:0]         smp_num,
+    input  logic [31:0]         window_size,
 
     // AXI stream master for output, eth_clk_in domain
     output logic [7:0]          m_axis_tdata,
@@ -85,6 +85,8 @@ module out_axis_fifo #(
     reg [31:0] wr_cnt;       // current BIT mem ptr
     reg [31:0] wr_batch_tgt; // next 'target' that should be written from batch
     reg [31:0] wr_total;     // total BITS to be sent!
+    logic [31:0] window_size_reg;
+    wire [31:0] window_size_safe = (window_size == 32'd0) ? 32'd1 : window_size;
 
     wire empty;
 
@@ -92,7 +94,7 @@ module out_axis_fifo #(
 
     // NOTE:
     // each written "acc_din" ACCUM_WIDTH word
-    // is counted as WINDOWS_SIZE samples actually
+    // is counted as window_size samples actually
     // because hw division for counters is painful
     // so we just increased the counter sizes
 
@@ -102,6 +104,7 @@ module out_axis_fifo #(
             wr_cnt          <= 32'b0;
             wr_batch_tgt    <= 32'b0;
             wr_total        <= 32'b0;
+            window_size_reg <= 32'd1;
             batch_req       <= 0;
             finish          <= 0;
             
@@ -115,6 +118,7 @@ module out_axis_fifo #(
                         wr_state <= WR_CHECK;
                         wr_total <= smp_num * ACCUM_WIDTH;
                         wr_batch_tgt <= 32'b0;
+                        window_size_reg <= window_size_safe;
                         batch_req <= 0;
                         finish <= 0;
                     end
@@ -126,9 +130,9 @@ module out_axis_fifo #(
                     if ((wr_data_count < (FIFO_WDEPTH - (PACKET_SIZE / (ACCUM_WIDTH / 8)))) && ~wr_rst_busy) begin
                         batch_req <= 1;
                         // should give us exactly PACKET_SIZE * 8 bits
-                        // multiplied by WINDOW_SIZE, because we count 
+                        // multiplied by window_size, because we count 
-                        // each given ACCUM_WIDTH word as WINDOWS_SIZE samples !!!
+                        // each given ACCUM_WIDTH word as window_size samples !!!
-                        wr_batch_tgt <= wr_batch_tgt + (8 * WINDOW_SIZE * PACKET_SIZE);
+                        wr_batch_tgt <= wr_batch_tgt + (8 * window_size_reg * PACKET_SIZE);
                         wr_state <= WR_RUN;
                     end else begin
                         batch_req <= 0;
@@ -150,8 +154,8 @@ module out_axis_fifo #(
 
                     if (din_valid) begin
                         // data supplied
-                        // count as we got WINDOW_SIZE samples
+                        // count as we got window_size samples
-                        wr_cnt <= wr_cnt + ACCUM_WIDTH * WINDOW_SIZE;
+                        wr_cnt <= wr_cnt + ACCUM_WIDTH * window_size_reg;
                     end
                 end
 

rtl/accum/tests/Makefile

@@ -13,20 +13,24 @@ FPGA_ARCH = artix7
 
 RTL_DIR = ../src
 
+# Simulation settings
+SIM_TOP     = tb_accumulator_top
+SIM_RUNTIME ?= 10000 us
 
-include ../../../scripts/vivado.mk
+# Design sources only
+SYN_FILES += $(filter-out %_tb.sv,$(sort $(shell find $(RTL_DIR) -type f -name '*.v' -o -type f -name '*.sv')))
 
-SYN_FILES += $(sort $(shell find ../src -type f \( -name '*.v' -o -name '*.sv' \)))
+# Testbench sources. Vivado puts these into "sim_1", Questa compiles them into "work".
+TB_FILES += out_axis_fifo_tb.sv
+TB_FILES += accum_full_tb.sv
 
-XCI_FILES = $(sort $(shell find ../src -type f -name '*.xci'))
+XCI_FILES = $(sort $(shell find $(RTL_DIR) -type f -name '*.xci'))
 
 XDC_FILES += ../../../constraints/ax7a035b.xdc
 XDC_FILES += test_timing.xdc
 
-SYN_FILES += out_axis_fifo_tb.sv
+include ../../../scripts/vivado.mk
-SYN_FILES += accum_full_tb.sv
+include ../../../scripts/questa.mk
-SIM_TOP = tb_accumulator_top
-
 
 program: $(PROJECT).bit
 	echo "open_hw_manager" > program.tcl

rtl/accum/tests/accum_full_tb.sv

@@ -5,7 +5,7 @@ module tb_accumulator_top;
     localparam DATA_WIDTH      = 12;
     localparam ACCUM_WIDTH     = 32;
     localparam N_MAX           = 4096;
-    localparam WINDOW_SIZE     = 65;
+    localparam MAX_WINDOW_SIZE = 65;
     localparam PACKET_SIZE     = 1024;
     localparam READ_BATCH_SIZE = (PACKET_SIZE*8)/ACCUM_WIDTH;
     localparam MAX_WORDS       = N_MAX;
@@ -20,6 +20,7 @@ module tb_accumulator_top;
     logic                  start;
     logic [31:0]           smp_num;
     logic [15:0]           seq_num;
+    logic [31:0]           window_size;
 
     logic                  req_ready;
     wire                   send_req;
@@ -50,7 +51,6 @@ module tb_accumulator_top;
         .DATA_WIDTH(DATA_WIDTH),
         .ACCUM_WIDTH(ACCUM_WIDTH),
         .N_MAX(N_MAX),
-        .WINDOW_SIZE(WINDOW_SIZE),
         .PACKET_SIZE(PACKET_SIZE)
     ) dut (
         .clk_in(clk_in),
@@ -60,6 +60,7 @@ module tb_accumulator_top;
         .start(start),
         .smp_num(smp_num),
         .seq_num(seq_num),
+        .window_size(window_size),
         .eth_clk_in(eth_clk_in),
         .req_ready(req_ready),
         .send_req(send_req),
@@ -104,6 +105,7 @@ module tb_accumulator_top;
         s_axis_tvalid = 1'b0;
         smp_num       = '0;
         seq_num       = '0;
+        window_size   = 32'd1;
         req_ready     = 1'b0;
         m_axis_tready = 1'b1;
         clear_scoreboard();
@@ -141,13 +143,14 @@ module tb_accumulator_top;
 
     task automatic run_test(
         input integer test_id,
+        input integer window_size_i,
         input integer seq_num_i,
         input integer smp_num_i,
         input bit     randomize_data,
         input integer base_value,
         input string  test_name
     );
-        logic [DATA_WIDTH-1:0] sample_mem [0:MAX_SEQ_NUM-1][0:(N_MAX*WINDOW_SIZE)-1];
+        logic [DATA_WIDTH-1:0] sample_mem [0:MAX_SEQ_NUM-1][0:(N_MAX*MAX_WINDOW_SIZE)-1];
         integer seq_idx;
         integer sample_idx;
         integer word_idx;
@@ -165,22 +168,25 @@ module tb_accumulator_top;
         tests_total   = tests_total + 1;
         errors_before = total_errors;
 
-        if (smp_num_i <= 0 || smp_num_i > N_MAX * WINDOW_SIZE || (smp_num_i % WINDOW_SIZE) != 0)
+        if (window_size_i <= 0 || window_size_i > MAX_WINDOW_SIZE)
-            $fatal(1, "[%0s] invalid smp_num=%0d", test_name, smp_num_i);
+            $fatal(1, "[%0s] invalid window_size=%0d", test_name, window_size_i);
+        if (smp_num_i <= 0 || smp_num_i > N_MAX * window_size_i || (smp_num_i % window_size_i) != 0)
+            $fatal(1, "[%0s] invalid smp_num=%0d for window_size=%0d", test_name, smp_num_i, window_size_i);
         if (seq_num_i <= 0 || seq_num_i > MAX_SEQ_NUM)
             $fatal(1, "[%0s] invalid seq_num=%0d", test_name, seq_num_i);
 
         $display("\n========================================");
         $display("TEST %0d: %0s", test_id, test_name);
-        $display("seq_num=%0d smp_num=%0d randomize=%0d", seq_num_i, smp_num_i, randomize_data);
+        $display("window_size=%0d seq_num=%0d smp_num=%0d randomize=%0d", window_size_i, seq_num_i, smp_num_i, randomize_data);
         $display("========================================");
 
         reset_dut();
-        smp_num   = smp_num_i;
+        smp_num     = smp_num_i;
-        seq_num   = seq_num_i;
+        seq_num     = seq_num_i;
-        req_ready = 1'b1; // приемник готов заранее
+        window_size = window_size_i;
+        req_ready   = 1'b1; // приемник готов заранее
 
-        exp_word_count   = smp_num_i / WINDOW_SIZE;
+        exp_word_count   = smp_num_i / window_size_i;
         exp_packet_count = (exp_word_count + READ_BATCH_SIZE - 1) / READ_BATCH_SIZE;
 
         for (seq_idx = 0; seq_idx < seq_num_i; seq_idx = seq_idx + 1) begin
@@ -196,8 +202,8 @@ module tb_accumulator_top;
         for (word_idx = 0; word_idx < exp_word_count; word_idx = word_idx + 1) begin
             local_sum = 0;
             for (seq_idx = 0; seq_idx < seq_num_i; seq_idx = seq_idx + 1) begin
-                for (k = 0; k < WINDOW_SIZE; k = k + 1)
+                for (k = 0; k < window_size_i; k = k + 1)
-                    local_sum = local_sum + sample_mem[seq_idx][word_idx * WINDOW_SIZE + k];
+                    local_sum = local_sum + sample_mem[seq_idx][word_idx * window_size_i + k];
             end
             expected_words[word_idx] = local_sum[ACCUM_WIDTH-1:0];
             $display("  expected[%0d] = %0d (0x%08x)", word_idx, expected_words[word_idx], expected_words[word_idx]);
@@ -318,16 +324,17 @@ module tb_accumulator_top;
 
         reset_dut();
 
-        run_test(1, 1,  1 * WINDOW_SIZE, 1'b0, 1,  "deterministic_small");
+        run_test(1,  1, 1,    1 * 1,  1'b0, 1,  "w1_deterministic_small");
-//        $finish;
+        run_test(2,  1, 2,   16 * 1,  1'b1, 0,  "w1_random_seq2_smp16");
-        run_test(2, 2,  1 * WINDOW_SIZE, 1'b1, 0,  "random_seq3_smp8");
+        run_test(3,  2, 2,   16 * 2,  1'b1, 0,  "w2_random_seq2_smp32");
-        run_test(3, 1, 16 * WINDOW_SIZE, 1'b1, 0,  "random_seq5_smp16_multi_packet");
+        run_test(4,  3, 1,   16 * 3,  1'b1, 0,  "w3_random_seq1_smp48");
-        run_test(4, 2, 12 * WINDOW_SIZE, 1'b1, 0,  "random_seq7_smp12");
+        run_test(5,  4, 2,   12 * 4,  1'b1, 0,  "w4_random_seq2_smp48");
-        run_test(5, 4, 256 * WINDOW_SIZE, 1'b1, 0,  "random_max_smpnum");
+        run_test(6, 65, 4,  256 * 65, 1'b1, 0,  "w65_random_seq4_smp16640");
-        run_test(6, 2, 1500 * WINDOW_SIZE, 1'b1, 0,  "random_max_smpnum2");
+        run_test(7,  2, 20,   3 * 2,  1'b1, 0,  "w2_random_20seqx3");
-        run_test(7, 20,  1 * WINDOW_SIZE, 1'b1, 0,  "random_20seq");
+        run_test(8, 65, 20,   3 * 65, 1'b1, 0,  "w65_random_20seqx3");
-        run_test(8, 20,  3 * WINDOW_SIZE, 1'b1, 0,  "random_20seqx3");
+        run_test(9,  1, 200,  1 * 1,  1'b1, 0,  "w1_random_200seq");
-        run_test(9, 200,  1 * WINDOW_SIZE, 1'b1, 0,  "random_200seq");
+        run_test(10,  2, 200,  2 * 1,  1'b1, 0,  "w2_random_200seq");
+        run_test(11,  65, 200,  65 * 1,  1'b1, 0,  "w1_random_200seq");
 
         $display("\n========================================");
         $display("ALL TESTS COMPLETED");

rtl/generator/README.md

@@ -1,7 +1,7 @@
 # Генератор
 
 Модуль выполняет задачу формирования последовательности импульсов заданной амплитуды, длительности и периода.  
-Дополнительно реализован механизм синхронизации с модулем сэмплера через сигналы `sample_req` и `sample_done`, позволяющий запускать сбор данных для каждого импульса и ожидать подтверждения завершения выборки перед переходом к следующему импульсу.
+Дополнительно реализован механизм синхронизации с модулем сэмплера через сигналы `request` и `done`, позволяющий запускать сбор данных для каждого импульса и ожидать подтверждения завершения выборки перед переходом к следующему импульсу.
 
 ---
 
@@ -22,7 +22,7 @@
 
 ## Список входных портов
 
-### clk_in
+### clk_dac
 Сигнал тактирования модуля.
 
 ### rst
@@ -47,25 +47,25 @@
 ### [15:0] pulse_num
 Количество импульсов, которое необходимо сгенерировать.
 
-### sample_done
+### request
-Сигнал подтверждения от сэмплера о завершении выборки данных для текущего импульса.
+Сигнал запроса на синхронизацию от сэмплера для текущего импульса.
 
 ---
 
 ## Список выходных портов
 
-pulse
+### dac_wrt
 Выходной сигнал разрешения записи сигнала 
 
-[DATA_WIDTH-1:0] pulse_height_out
+### [DATA_WIDTH-1:0] dac_out
 Выходное значение амплитуды сигнала.
 
 Во время активной части импульса равно `pulse_height`, вне импульса — `ZERO_LEVEL`.
 
-sample_req
+### done
-Сигнал запроса на запуск выборки в модуле сэмплера.
+Сигнал запроса на запуск синхронизации с сэмплером для текущего импульса.
 
-Поднимается в начале каждого нового импульса и снимается после получения `sample_done`.
+Поднимается в начале каждого нового импульса и снимается после получения `request`.
 
 ---
 
@@ -74,11 +74,11 @@ sample_req
 После прихода сигнала `start` модуль:
 
 - фиксирует входные параметры генерации
-- сбрасывает внутренние счетчики
 - поднимает `enable = 1`
-- формирует первый `sample_req`
+- выполняет `pulse_num` циклов работы
+- - типичный цикл состоит в ожидании синхронизации (`synced`), после чего запуск генерации импульса
 
-После этого начинается последовательная генерация импульсов.
+Синхронизация представляет из себя простое рукопожатие с внешним модулем, имеющим сигналы `request`/`done` работающими в соответствии с этими сигналами генератора. Один из модулей, входит в ожидание и ставит на свой done активный уровень, после чего ждет, пока второй, запаздывающий модуль не войдет в свой режим ожидания, и не выставит для своего done активный уровень. Для каждого из модулей, на следующий такт после выставления активного уровня, производится проверка своего request. Так, при получении активного request (иными словами активного done от внешнего модуля), модуль незамедлительно опускает уровень своего done и начинает работать. Done подымается до активного уровня хотя-бы на один такт работы соответствующего модуля.
 
 ---
 

rtl/generator/src/generator.sv

@@ -1,105 +1,95 @@
 `timescale 1ns / 1ps
 
-
 module generator
 #(
     parameter DATA_WIDTH = 14,
     parameter ZERO_LEVEL = 8192 // 8192 or 0
-    )
+)
 (
-    input clk_in,
+    input clk_dac,
     input rst,
     input start,
     input [31:0]           pulse_width,
     input [31:0]           pulse_period,
     input [DATA_WIDTH-1:0] pulse_height,
     input [15:0]           pulse_num,
-    input sample_done,
+    input request,
     
-    output pulse,
+    output logic [DATA_WIDTH-1:0] dac_out,
-    output[DATA_WIDTH-1:0] pulse_height_out,
+    output logic done
-    output logic sample_req
+);
+    logic [DATA_WIDTH-1:0] pulse_height_reg;
+    logic [31:0] pulse_width_reg, pulse_period_reg;
+    logic [15:0] pulse_num_reg;
     
-    );
+    logic [15:0] cnt_pulse_num;
-    
+    logic [31:0] cnt_pulse_period;
-  (* MARK_DEBUG="true" *)  logic [DATA_WIDTH-1:0] pulse_height_reg, pulse_height_out_reg;
-    
-  (* MARK_DEBUG="true" *)  logic [31:0] pulse_width_reg, pulse_period_reg;
-  (* MARK_DEBUG="true" *)  logic [15:0] pulse_num_reg;
-    
-  (* MARK_DEBUG="true" *)  logic enable;
-  (* MARK_DEBUG="true" *)  logic [15:0] cnt_pulse_num;
-  (* MARK_DEBUG="true" *)  logic [31:0] cnt_period;
 
-    
+    logic enable, synced;
-    always @(posedge clk_in) begin
+
+    initial begin
+        cnt_pulse_period = '0;
+        cnt_pulse_num    = '0;
+        enable           =  0;
+        synced           =  0;
+        dac_out          = ZERO_LEVEL;
+    end
+
+    always @(posedge clk_dac) begin
         if (rst) begin
-            pulse_height_reg <= ZERO_LEVEL;
+            pulse_height_reg   <=  ZERO_LEVEL;
-            pulse_height_out_reg <= ZERO_LEVEL;
+            pulse_width_reg    <=  0;
-            pulse_width_reg <= '0;
+            pulse_period_reg   <=  0;
-            pulse_period_reg <= '0;
+            pulse_num_reg      <=  0;
-            pulse_num_reg <= '0;
+            cnt_pulse_num      <=  0;
-            enable <= 0;
+            cnt_pulse_period   <=  0;
-            cnt_pulse_num <= '0;
+            dac_out            <=  ZERO_LEVEL;
-            cnt_period <= '0;
+            done               <=  0;
-            sample_req <= 0;
+            enable             <=  0;
-        end else begin
+            synced             <=  0;
+        end 
+        else begin
+            // wait start for updating registers
             if (start & !enable) begin
-                enable <= 1'b1;
+                enable              <= 1;
-                cnt_pulse_num <= '0;
+                pulse_width_reg     <= pulse_width;
-                cnt_period <= '0;
+                pulse_period_reg    <= pulse_period;
-
+                pulse_num_reg       <= pulse_num;
-                sample_req <= 1;
+                pulse_height_reg    <= pulse_height;
-                
+            end
-                pulse_width_reg <= pulse_width;
+            // main work cycle
-                pulse_period_reg <= pulse_period;
-                pulse_num_reg <= pulse_num;
-                pulse_height_reg <= pulse_height;
-            end 
             if (enable) begin
-
+                if (cnt_pulse_num != pulse_num_reg) begin
-                if (!sample_req && (cnt_period == 0)) begin
+                    // wait for synchronization with sampler
-                    pulse_height_out_reg <= ZERO_LEVEL;
+                    if (!synced) begin
-                    if (sample_done) begin
+                        if (request & done) begin
-                        sample_req <= 1'b0;
+                            synced  <= 1;
+                            done    <= 0;
+                        end
+                        else
+                            done <= 1;
                     end
-                    
+                    else begin
-                    if (!sample_done) begin
+                        if (cnt_pulse_period != pulse_period_reg) begin
-                        if (cnt_pulse_num == pulse_num_reg - 1) begin
+                            if (cnt_pulse_period < pulse_width_reg)
-                            enable <= 1'b0;
+                                dac_out <= pulse_height_reg;
+                            else
+                                dac_out <= ZERO_LEVEL;
+                            cnt_pulse_period++;
                         end
                         else begin
-                            cnt_pulse_num <= cnt_pulse_num + 1;
+                            cnt_pulse_num++;
-                            sample_req <= 1'b1;
+                            cnt_pulse_period    <=  0;
-                            cnt_period <= 1;
+                            synced              <=  0;
+                            dac_out             <=  ZERO_LEVEL;
                         end
                     end
                 end
-                 else begin
+                else begin
-                        
+                    cnt_pulse_num   <=  0;
-                    if (cnt_period <= pulse_width_reg) begin
+                    enable          <=  0;
-                        pulse_height_out_reg <= pulse_height_reg;
-                    end else begin
-                        pulse_height_out_reg <= ZERO_LEVEL;
-                    end
-                    if (cnt_period == pulse_period_reg) begin
-                        cnt_period <= 0;
-                    end else begin
-                        cnt_period <= cnt_period + 1;
-                    end
-                    if (sample_req && sample_done) begin
-                        sample_req <= 0;
-                    end
                 end
             end
         end
     end
-
-     OBUF OBUF_pulse_clk (
-        .I(clk_in),
-        .O(pulse)
-    );
-    
-    assign pulse_height_out = pulse_height_out_reg;
-    
 endmodule

rtl/generator/tests/generator_tb.sv

@@ -1,114 +1,360 @@
 `timescale 1ns / 1ps
 
 module generator_tb;
+    // === Параметры ===
+    localparam DATA_WIDTH = 14;
+    localparam LOGIC_ZERO_LEVEL = 0; // DAC -5V for logic zero
+    localparam VOLTAGE_ZERO_LEVEL = 2**(DATA_WIDTH-1); // DAC 0V for logic zero
+    localparam CLK_PERIOD = 8;
+    parameter string ZERO_LEVEL = "logic"; // "logic" VS "true"
 
-    parameter DATA_WIDTH = 14;
+    // === Сигналы ===
-    parameter ZERO_LEVEL = 8192;
+    // Системные сигналы
-    parameter CLK_PERIOD = 16;
-
     logic clk;
     logic rst;
     logic start;
+    // Входные сигналы
+    logic [31:0]            pulse_width;    // config reg
+    logic [31:0]            pulse_period;   // config reg
+    logic [DATA_WIDTH-1:0]  pulse_height;   // config reg
+    logic [15:0]            pulse_num;      // config reg
+    logic sampler_done;             // sampler request for synchronization
+    // Выходные сигналы
+    wire [DATA_WIDTH-1:0] dac_out;  // DAC input logic signal
+    wire generator_done;            // generator request for synchronization
 
-    logic [31:0] pulse_width;
+    // === Переменные ===
-    logic [31:0] pulse_period;
+    int current_zero_level;
-    logic [DATA_WIDTH-1:0] pulse_height;
+    initial begin
-    logic [15:0] pulse_num;
+        if (ZERO_LEVEL == "true")
-
+            current_zero_level = VOLTAGE_ZERO_LEVEL;
-    logic pulse;
+        else
-    logic [DATA_WIDTH-1:0] pulse_height_out;
+            current_zero_level = LOGIC_ZERO_LEVEL;
+    end
 
     // DUT
-    generator #(
+    generate
-        .DATA_WIDTH(DATA_WIDTH)
+        if (ZERO_LEVEL == "true") begin : gen_dut_true
-    ) dut (
+            generator #(
-        .clk_in(clk),
+                .DATA_WIDTH(DATA_WIDTH),
-        .rst(rst),
+                .ZERO_LEVEL(VOLTAGE_ZERO_LEVEL)
-        .start(start),
+            ) dut (
-        .pulse_width(pulse_width),
+                .clk_dac(clk),
-        .pulse_period(pulse_period),
+                .rst(rst),
-        .pulse_height(pulse_height),
+                .start(start),
-        .pulse_num(pulse_num),
+                .pulse_width(pulse_width),
-        .pulse(pulse),
+                .pulse_period(pulse_period),
-        .pulse_height_out(pulse_height_out)
+                .pulse_height(pulse_height),
-    );
+                .pulse_num(pulse_num),
+                .dac_out(dac_out),
+                .done(generator_done),
+                .request(sampler_done)
+            );
+            initial $display("[TB] Generator compiled. ZERO_LEVEL: TRUE");
+        end 
+        else if (ZERO_LEVEL == "logic") begin : gen_dut_logic
+            generator #(
+                .DATA_WIDTH(DATA_WIDTH),
+                .ZERO_LEVEL(LOGIC_ZERO_LEVEL)
+            ) dut (
+                .clk_dac(clk),
+                .rst(rst),
+                .start(start),
+                .pulse_width(pulse_width),
+                .pulse_period(pulse_period),
+                .pulse_height(pulse_height),
+                .pulse_num(pulse_num),
+                .dac_out(dac_out),
+                .done(generator_done),
+                .request(sampler_done)
+            );
+            initial $display("[TB] Generator compiled. ZERO_LEVEL: LOGIC");
+        end
+        else begin : gen_dut_error
+            // Защита от дурака
+            initial begin
+                $display("[ERROR] Unknown value ZERO_LEVEL: %s", ZERO_LEVEL);
+                $finish;
+            end
+        end
+    endgenerate
 
-    // Clock
+    // Тактовые сигналы
     initial begin
         clk = 0;
         forever #(CLK_PERIOD/2) clk = ~clk;
     end
 
-    initial begin
+    // === Таски для тестипрования ===
-        $display("\n=== GENERATOR TEST ===\n");
+    // Таска синхронизации, одно рукопожатие
+    task automatic synchronize(
+        input bit sampler_first,      // 1 - выставить sampler_done ДО генератора, 0 - ПОСЛЕ
+        input int delay_before_ack,   // Если sampler_first=0: задержка ПОСЛЕ gen_done. Если 1: задержка от НАЧАЛА цикла.
+        input int ack_duration        // сколько тактов удерживать sampler_done после встречи сигналов
+    );
+        if (sampler_first) begin
+            // --- сэмплер готов до генератора ---
+            repeat(delay_before_ack) @(posedge clk);
+            sampler_done <= 1;
+            wait(generator_done == 1);
+            repeat(ack_duration) @(posedge clk);
+            sampler_done <= 0;
+        end 
+        else begin
+            // --- генератора готов до сэмплер ---
+            wait(generator_done == 1);
+            repeat(delay_before_ack) @(posedge clk);
+            sampler_done <= 1;
+            repeat(ack_duration) @(posedge clk);
+            sampler_done <= 0;
+        end
+    endtask
 
+    // Таска сброса DUT
+    task automatic reset_dut(
+        input int rst_duration    // сколько тактов держать сброс
+    );
+        rst <= 1;
+        repeat(rst_duration) @(posedge clk);
+        rst <= 0;
+    endtask
+
+    // Таска запуска DUT
+    task automatic start_dut(
+        input int start_duration    // сколько тактов держать импульс
+    );
+        start <= 1;
+        repeat(start_duration) @(posedge clk);
+        start <= 0;
+    endtask
+
+    // Таска конфигурации DUT
+    task automatic set_config(
+        input logic [31:0]              w,  // ширина импульса
+        input logic [31:0]              p,  // период импульса
+        input logic [15:0]              n,  // количество импульсов
+        input logic [DATA_WIDTH-1:0]    h   // высота импульса
+    );
+        // Задаем конфигурационные регистры
+        @(posedge clk);
+        pulse_width  <= w;
+        pulse_period <= p;
+        pulse_num    <= n;
+        pulse_height <= h;
+    endtask
+
+    // Таска проверки устойчивости к долгим управляющим импульсам
+    task automatic check_impulses;
+        // Локальные переменные для хранения случайных параметров
+        int rand_start_duration;
+        int rand_delay;
+        int rand_ack;
+        bit rand_first;
+        int total_impulse_cycles = 0;
+
+        int pulse_w = 11;
+        int pulse_p = 31;
+        int pulse_n = 5;
+        int pulse_h = 1024;
+
+        $display("[TB] -check_impulses- Check system stability under random latencies");
+
+        // Установка конфигурации
+        set_config(
+            .w(pulse_w), 
+            .p(pulse_p), 
+            .n(pulse_n), 
+            .h(pulse_h)
+        );
+
+        reset_dut(5);
+        repeat(2) @(posedge clk);
+
+        // Старт норме 1 такт. Сделаем случайным от 5 до 25 тактов.
+        rand_start_duration = $urandom_range(5, 25);
+        $display("[TB] Long start: %0d clocks", rand_start_duration);
+
+        // Фоновый процесс подсчета тактов импульса
+        fork 
+            begin : counter_proc
+                forever begin
+                    @(negedge clk); // 180 deg. phase shift for "DAC strobing signal"
+                    if (dac_out == pulse_h) begin
+                        total_impulse_cycles++;
+                    end
+                end
+            end
+        join_none
+        
+        // Параллельный запуск длинного старта и обработки синхронизации
+        fork
+            // Поток 1: Удерживаем старт аномально долго
+            begin
+                start_dut(rand_start_duration);
+            end
+            // Поток 2: Обслуживаем n=4 циклов синхронизации со случайными задержками
+            begin
+                repeat(pulse_n) begin
+                    // Рандомизируем параметры для каждого из 4-х рукопожатий
+                    rand_first = $urandom;               // Случайно: Самплер первый (1) или Генератор первый (0)
+                    rand_delay = $urandom_range(1, 8);   // Случайная задержка ожидания (1..8 тактов)
+                    rand_ack   = $urandom_range(5, 10); // Аномально долгий удерживаемый импульс sampler_done (10..30 тактов)
+
+                    synchronize(
+                        .sampler_first(rand_first),
+                        .delay_before_ack(rand_delay),
+                        .ack_duration(rand_ack)
+                    );
+                end
+            end
+        join
+        repeat(pulse_p+5) @(posedge clk);
+        disable counter_proc;
+        // Ожидание завершения переходных процессов
+        repeat(10) @(posedge clk);
+        if (total_impulse_cycles == pulse_w*pulse_n)
+            $display("[TB] -check_impulses- Pulse generation CORRECT");
+        else begin
+                $display("[ERROR] -check_impulses- Pulse generation INCORRECT. Total number of pulses: %d, must be: %d", total_impulse_cycles, pulse_w*pulse_n);
+                $finish;
+        end
+        $display("[TB] -check_impulses- Done");
+    endtask
+
+    task automatic run_test_case(
+        input int pulse_w,
+        input int pulse_p,
+        input int pulse_n,
+        input int pulse_h,
+        input bit skip_reset,   // skip reset sequence on demand
+        input bit count_level   // count ticks of amplitude == pulse_h or amplitude != pulse_h
+    );
+        int total_impulse_cycles = 0;
+
+        if (!skip_reset) begin
+            reset_dut(1);
+            @(posedge clk);
+        end
+
+        set_config(
+            .w(pulse_w), 
+            .p(pulse_p), 
+            .n(pulse_n), 
+            .h(pulse_h)
+        );
+        @(posedge clk);
+
+        start_dut(1);
+        
+        // Фоновый процесс подсчета тактов импульса
+        fork
+            begin : counter_proc
+                forever begin
+                    @(negedge clk); // 180 deg. phase shift for "DAC strobing signal"
+                    if (count_level) begin
+                        if (dac_out == pulse_h) begin
+                            total_impulse_cycles++;
+                        end
+                    end
+                    else begin
+                        if (dac_out != current_zero_level) begin
+                            total_impulse_cycles++;
+                        end
+                    end
+                end
+            end
+        join_none
+
+        repeat(pulse_n) begin
+            synchronize(
+                .sampler_first(0),
+                .delay_before_ack(1),
+                .ack_duration(2)
+            );
+        end
+        repeat(pulse_p+5) @(posedge clk);
+        disable counter_proc;
+        repeat(10) @(posedge clk);
+
+        if (count_level) begin
+            if (total_impulse_cycles == pulse_w*pulse_n)
+                $display("[TB] -run_test_case- Pulse generation CORRECT");
+            else begin
+                    $display("[ERROR] -run_test_case- Pulse generation INCORRECT. Total number of pulses: %d, must be: %d", total_impulse_cycles, pulse_w*pulse_n);
+                    $finish;
+            end
+        end
+        else begin
+            if (total_impulse_cycles == 0)
+                $display("[TB] -run_test_case- Pulse generation CORRECT");
+            else begin
+                    $display("[ERROR] -run_test_case- Pulse generation INCORRECT. Total number of pulses: %d, must be: %d", total_impulse_cycles, 0);
+                    $finish;
+            end
+        end
+    endtask
+
+    // --- ОСНОВНОЙ ПРОЦЕСС ТЕСТИРОВАНИЯ ---
+    initial begin
+        $display("[TB] Tests start");
+
+        // Инициализация
         rst = 1;
         start = 0;
-
         pulse_width  = 0;
         pulse_period = 0;
         pulse_height = 0;
         pulse_num    = 0;
+        sampler_done = 0;
 
-        repeat(5) @(posedge clk);
+        $display("[TB] Test 1. Random latency for control signals");
-        rst = 0;
+        check_impulses();
+        $display("[TB] Test 1 complete");
 
-        // --- Test 1 ---
+        $display("[TB] Test 2. Random configs");
-        // 3 clk 1, 5 clk 0,  4 pulses
+        for (int i = 0; i < 25; i++) begin
-       repeat(2) @(posedge clk);
+            int r_w, r_p, r_n, r_h;
-        pulse_width  = 3;
+            bit r_skip;
-        pulse_period = 8;
-        pulse_num    = 4;
-        pulse_height = 14'h3FF;
-        start = 1;
 
-       repeat(1) @(posedge clk);
+            // Генерируем параметры
-        start = 0;
+            r_p    = $urandom_range(5, 50);          // Период от 5 до 50
+            r_w    = $urandom_range(0, r_p);         // Ширина не больше периода
+            r_n    = $urandom_range(1, 10);          // Количество импульсов
+            r_h    = $urandom_range(1, 2**DATA_WIDTH-1);       // Высота (для 14 бит)
+            r_skip = $urandom_range(0, 1);           // Случайный сброс (0 - сброс, 1 - пропуск)
 
-        repeat(50) @(posedge clk);
+            // Защита от "нулевого" импульса. Невозможно проверить длительность.
+            if (r_h == current_zero_level) begin
+                r_h += $urandom_range(1, 10);
+            end
 
-        // --- Test 2 ---
+            $display("[TB] --- Test #%0d (Config: W=%0d, P=%0d, N=%0d, H=%0d, SkipReset=%0b) ---", 
-        $display("\n--- SECOND RUN ---\n");
+                      i+1, r_w, r_p, r_n, r_h, r_skip);
 
-        @(posedge clk);
+            run_test_case(
-        pulse_width  = 2;
+                .pulse_w(r_w), 
-        pulse_period = 5;
+                .pulse_p(r_p), 
-        pulse_num    = 3;
+                .pulse_n(r_n), 
-        pulse_height = 14'h155;
+                .pulse_h(r_h), 
-        start = 1;
+                .skip_reset(r_skip),
+                .count_level(1)
+            );
+        end
+        $display("[TB] Test 2 complete");
 
-        @(posedge clk);
+        $display("[TB] Test 3. Zero level of pulse height");
-        start = 0;
+        run_test_case(
+            .pulse_w(77), 
+            .pulse_p(131), 
+            .pulse_n(13), 
+            .pulse_h(current_zero_level), 
+            .skip_reset(0),
+            .count_level(0)
+        );
+        $display("[TB] Test 3 complete");
 
-        repeat(40) @(posedge clk);
+        $display("[TB] ALL PASSED");
-        
-        pulse_width  = 3;
-        pulse_period = 8;
-        pulse_num    = 4;
-        pulse_height = 14'h3FF;
-        start = 1;
-
-       repeat(1) @(posedge clk);
-        start = 0;
-        
-        repeat(5) @(posedge clk);
-        start = 1;
-        pulse_height = 14'h155;
-
-       repeat(1) @(posedge clk);
-        start = 0;
-        
-        repeat(50) @(posedge clk);
-
-
-        $display("\n=== TEST FINISHED ===");
         $finish;
     end
 
-    // Display
-    always @(posedge clk) begin
-        $display("t=%0t | pulse=%0b | height=%h",
-                  $time, pulse, pulse_height_out);
-    end
-
 endmodule

rtl/sampler/README.md

@@ -1,7 +1,7 @@
 # Сэмплер
 
 Модуль выполняет задачу сбора данных с выхода АЦП, их обработки, упаковки и передачи дальше с помощью AXI Stream интерфейса.  
-Дополнительно реализован механизм синхронизации с внешним генератором через сигналы `sample_req` и `sample_done`, позволяющий запускать сбор строго по запросу и подтверждать завершение выборки.
+Дополнительно реализован механизм синхронизации с внешним генератором через сигналы `request` и `done`, позволяющий запускать сбор строго по запросу и подтверждать завершение выборки.
 
 ---
 
@@ -41,9 +41,8 @@ out_of_range
 [31:0] smp_num
 Количество валидных отсчетов, которое необходимо собрать после получения запроса на выборку.
 
-sample_req
+request
-Сигнал запроса на запуск выборки.  
+Сигнал запроса на синхронизацию от генератора для текущего импульса.
-При его активации модуль начинает сбор данных и переходит в активное состояние (`enable = 1`).
 
 ---
 
@@ -57,9 +56,10 @@ m_axis_tvalid
 Урезанный AXI Stream формат, сигнал валидности выходных данных.  
 Формируется при готовности очередного пакета.
 
-sample_done
+done
-Сигнал завершения выборки.  
+Сигнал запроса на запуск синхронизации с генератором для текущего импульса.
-Поднимается после того, как модуль собрал количество валидных отсчетов, равное `smp_num`.
+
+Поднимается в начале каждого нового импульса и снимается после получения `request`.
 
 ---
 
@@ -86,7 +86,7 @@ sample_done
 
 ### Запуск выборки
 
-Сбор данных начинается только после прихода сигнала `sample_req`.
+Сбор данных начинается только после прихода сигнала `request`.
 
 При этом:
 
@@ -94,7 +94,9 @@ sample_done
 - внутренний счетчик собранных отсчетов обнуляется
 - модуль переходит в активное состояние (`enable = 1`)
 
-Пока `enable = 1`, модуль принимает только валидные отсчеты и считает их.
+Пока `enable = 1`, модуль принимает только валидные отсчеты.
+
+Синхронизация представляет из себя простое рукопожатие с внешним модулем, имеющим сигналы `request`/`done` работающими в соответствии с этими сигналами сэмплера. Один из модулей, входит в ожидание и ставит на свой done активный уровень, после чего ждет, пока второй, запаздывающий модуль не войдет в свой режим ожидания, и не выставит для своего done активный уровень. Для каждого из модулей, на следующий такт после выставления активного уровня, производится проверка своего request. Так, при получении активного request (иными словами активного done от внешнего модуля), модуль незамедлительно опускает уровень своего done и начинает работать. Done подымается до активного уровня хотя-бы на один такт работы соответствующего модуля.
 
 ---
 
@@ -126,7 +128,6 @@ sample_done
 
 Когда количество собранных валидных отсчетов достигает значения `smp_num`:
 
-- поднимается сигнал `sample_done`
 - внутренние счетчики сбрасываются
 - буфер очищается
 - `enable` сбрасывается в `0`
@@ -141,4 +142,3 @@ sample_done
 cd tests
 make sim
 ```
-При успешном завершении теста высвечивается "ALL PASSED".

rtl/sampler/src/sampler.sv

@@ -1,154 +1,87 @@
 `timescale 1ns / 1ps
 
-
-
 module sampler
 #(
     parameter DATA_WIDTH = 12,
     parameter PACK_FACTOR = 1,
     parameter PROCESS_MODE = 0
-    )
+) (
-(
     input clk_in,
     input rst,
     input [DATA_WIDTH-1:0] data_in,
     input out_of_range,
     input [31:0] smp_num,
-    input sample_req,
+    input request,
 
-    output logic [DATA_WIDTH*PACK_FACTOR-1:0]  m_axis_tdata,
+    output logic [DATA_WIDTH*PACK_FACTOR-1:0]  m_axis_tdata, 
     output logic                              m_axis_tvalid,
-    output logic sample_done
+    output logic done
-    );
+);
-   (* MARK_DEBUG="true" *) logic [DATA_WIDTH-1:0] data_converted;
+    // WARNING: number of samples smp_num must be multiple of PACK_FACTOR
-   (* MARK_DEBUG="true" *) logic out_of_range_reg;
+    // Last (smp_num % PACK_FACTOR) will be lost and not transmitted
-    (* MARK_DEBUG="true" *) logic [31:0] smp_num_reg, cnt_smp_num;
+    logic [DATA_WIDTH-1:0] data_converted;
-   (* MARK_DEBUG="true" *) logic enable;
+    logic [31:0] smp_num_reg, cnt_smp_num;
+    logic synced;
+    logic  [$clog2(PACK_FACTOR):0] pack_cnt;
     
-    generate
+    always_comb begin
-       if (PROCESS_MODE) begin 
+            if (PROCESS_MODE) begin
-
+                if (out_of_range) begin
-        always @(posedge clk_in) begin
+                    data_converted = {~data_in[DATA_WIDTH-1], {(DATA_WIDTH-1){data_in[DATA_WIDTH-1]}}};
-            if (rst) begin
+                end else begin
-                data_converted   <= '0;
+                    data_converted = {~data_in[DATA_WIDTH-1], data_in[DATA_WIDTH-2:0]};
-                out_of_range_reg <= 0;
-            end
-            else begin
-                out_of_range_reg <= out_of_range;
-                if (data_in == {1'b1, {(DATA_WIDTH-1){1'b0}}})
-                    data_converted <= data_in;
-                else
-                    data_converted <= data_in[DATA_WIDTH-1] ?{1'b1, (~data_in[DATA_WIDTH-2:0] + 1'b1)}:data_in;
-            end
-        end
-     end else begin
-        always @(posedge clk_in) begin
-            if (rst) begin
-                data_converted   <= '0;
-                out_of_range_reg <= 0;
-            end
-            else begin
-                out_of_range_reg <= out_of_range;
-                data_converted   <= data_in;
-            end
-        end
-     end
-    endgenerate
-         
-  (* MARK_DEBUG="true" *)  logic [DATA_WIDTH*PACK_FACTOR-1:0] buffer;
-  (* MARK_DEBUG="true" *)  logic buffer_ready;
-
-    logic [$clog2(PACK_FACTOR):0] cnt;
-    
-    generate
-      if (PACK_FACTOR == 1) begin
-        always @(posedge clk_in) begin
-            if (rst) begin
-                buffer       <= '0;
-                buffer_ready <= 0;
-                cnt_smp_num <= '0;
-                smp_num_reg <= '0;
-                enable <= '0;
-                sample_done <= 0;
-            end
-            else begin
-                buffer_ready <= 0;
-                if (sample_done && !sample_req) begin
-                    sample_done <= 1'b0;
                 end
-                if (!enable && sample_req && !sample_done) begin
+            end else begin
-                    enable      <= 1;
+                if (out_of_range) begin
+                    data_converted = {DATA_WIDTH{data_in[DATA_WIDTH-1]}};
+                end else begin
+                    data_converted = data_in;
+                end
+            end
+    end
+
+    initial begin
+        synced = 0;
+        m_axis_tdata = '0;
+        m_axis_tvalid = 0;
+    end
+    
+    always_ff @(posedge clk_in) begin
+        if (rst) begin
+            m_axis_tdata <= '0;
+            m_axis_tvalid <= 0;
+            cnt_smp_num <= '0;
+            smp_num_reg <= '0;
+            pack_cnt <= '0;
+            synced <= 0;
+            done <= 0;
+        end else begin
+            if (!synced) begin
+                if (done && request) begin
+                    synced <= 1;
+                    done <= 0;
                     cnt_smp_num <= 0;
                     smp_num_reg <= smp_num;
+                end else begin
+                    done <= 1;
                 end
-                if (enable) begin
+            end else begin
-                    if (!out_of_range_reg) begin
+                if (cnt_smp_num != smp_num_reg) begin
-                        if (cnt_smp_num != smp_num_reg) begin
+                    cnt_smp_num++;
-                            buffer       <= data_converted;
+                    m_axis_tdata[pack_cnt*DATA_WIDTH +: DATA_WIDTH] <= data_converted;
-                            buffer_ready <= 1;
+                    if (pack_cnt == PACK_FACTOR-1) begin
-                            cnt_smp_num <= cnt_smp_num +1;
+                        pack_cnt <= 0;
-                        end 
+                        m_axis_tvalid <= 1;
-                        else begin
+                    end else begin
-                            cnt_smp_num <= '0;
+                        pack_cnt++;
-                            sample_done <= 1'b1;
+                        m_axis_tvalid <= 0;
-                            buffer_ready <= 0;
-                            buffer <= '0;
-                            enable <= 0;
-                        end
                     end
+                end else begin
+                    pack_cnt <= '0;
+                    synced <= 0;
+                    m_axis_tvalid <= 0;
                 end
             end
         end
-      end  else begin
+    end    
-        always @(posedge clk_in) begin
-            if (rst) begin
-                buffer <= '0;
-                cnt <= '0; //
-                buffer_ready <= 0;
-                cnt_smp_num <= '0;
-                smp_num_reg <= '0;
-                enable <= 0;
-                sample_done <= 0;
-            end
-            else begin
-                buffer_ready <= 0;
-                if (sample_done && !sample_req) begin
-                    sample_done <= 1'b0;
-                end
-                if (!enable && sample_req && !sample_done) begin
-                    enable      <= 1;
-                    cnt_smp_num <= 0;
-                    smp_num_reg <= smp_num;
-                end
-                if (enable) begin
-                    if (!out_of_range_reg) begin
-                        if (cnt_smp_num != smp_num_reg) begin
-                            cnt_smp_num <= cnt_smp_num +1;
-                            buffer <= {buffer[DATA_WIDTH*(PACK_FACTOR-1)-1:0], data_converted};
-                            if (cnt == PACK_FACTOR-1) begin
-                                cnt <= 0;
-                                buffer_ready <= 1;
-                                buffer <= {buffer[DATA_WIDTH*(PACK_FACTOR-1)-1:0], data_converted};
-                            end
-                            else begin
-                                cnt <= cnt + 1;
-                            end
-                        end 
-                        else begin
-                            sample_done <= 1'b1;
-                            cnt_smp_num <= '0;
-                            buffer_ready <= 0;
-                            buffer <= '0;
-                            enable <= 0;
-                        end
-                    end
-                end
-            end
-        end
-      end
-    endgenerate
-    
-    assign m_axis_tdata = buffer;
-    assign m_axis_tvalid = buffer_ready;
-    
 endmodule

rtl/sampler/tests/Makefile

@@ -1,51 +0,0 @@
-# SPDX-License-Identifier: MIT
-#
-# Copyright (c) 2025 FPGA Ninja, LLC
-#
-# Authors:
-# - Alex Forencich
-#
-
-# FPGA settings
-FPGA_PART = xc7a35tfgg484-1
-FPGA_TOP = sampler
-FPGA_ARCH = artix7
-
-RTL_DIR = ../src
-
-
-include ../../../scripts/vivado.mk
-
-SYN_FILES += $(sort $(shell find ../src -type f \( -name '*.v' -o -name '*.sv' \)))
-
-XCI_FILES = $(sort $(shell find ../src -type f -name '*.xci'))
-
-XDC_FILES += ../../../constraints/ax7a035b.xdc
-
-SYN_FILES += sampler_main_tb.sv
-SIM_TOP = sampler_tb
-
-
-program: $(PROJECT).bit
-	echo "open_hw_manager" > program.tcl
-	echo "connect_hw_server" >> program.tcl
-	echo "open_hw_target" >> program.tcl
-	echo "current_hw_device [lindex [get_hw_devices] 0]" >> program.tcl
-	echo "refresh_hw_device -update_hw_probes false [current_hw_device]" >> program.tcl
-	echo "set_property PROGRAM.FILE {$(PROJECT).bit} [current_hw_device]" >> program.tcl
-	echo "program_hw_devices [current_hw_device]" >> program.tcl
-	echo "exit" >> program.tcl
-	vivado -nojournal -nolog -mode batch -source program.tcl
-
-$(PROJECT).mcs $(PROJECT).prm: $(PROJECT).bit
-	echo "write_cfgmem -force -format mcs -size 16 -interface SPIx4 -loadbit {up 0x0000000 $*.bit} -checksum -file $*.mcs" > generate_mcs.tcl
-	echo "exit" >> generate_mcs.tcl
-	vivado -nojournal -nolog -mode batch -source generate_mcs.tcl
-	mkdir -p rev
-	COUNT=100; \
-	while [ -e rev/$*_rev$$COUNT.bit ]; \
-	do COUNT=$$((COUNT+1)); done; \
-	COUNT=$$((COUNT-1)); \
-	for x in .mcs .prm; \
-	do cp $*$$x rev/$*_rev$$COUNT$$x; \
-	echo "Output: rev/$*_rev$$COUNT$$x"; done;

rtl/sampler/tests/sampler_main_tb.sv

@@ -1,132 +0,0 @@
-`timescale 1ns / 1ps
-
-module sampler_tb;
-
-    parameter DATA_WIDTH   = 12;
-    parameter PROCESS_MODE = 0;
-    parameter CLK_PERIOD   = 15.3846;
-    parameter TEST_NUM     = 1000;
-
-    logic clk;
-    logic rst;
-
-    logic [DATA_WIDTH-1:0] data_in;
-    logic out_of_range;
-
-    logic [DATA_WIDTH-1:0] m_axis_tdata;
-    logic m_axis_tvalid;
-
-    integer errors = 0;
-
-    sampler #(
-        .DATA_WIDTH(DATA_WIDTH),
-        .PROCESS_MODE(PROCESS_MODE)
-    ) dut (
-        .clk_in(clk),
-        .rst(rst),
-        .data_in(data_in),
-        .out_of_range(out_of_range),
-        .m_axis_tdata(m_axis_tdata),
-        .m_axis_tvalid(m_axis_tvalid)
-    );
-
-    initial begin
-        clk = 0;
-        forever #(CLK_PERIOD/2) clk = ~clk;
-    end
-
-    function automatic [DATA_WIDTH-1:0] ref_convert(input [DATA_WIDTH-1:0] din);
-        if (PROCESS_MODE == 0)
-            return din;
-        else if (din == {1'b1, {(DATA_WIDTH-1){1'b0}}})
-            return din;
-        else
-            return din[DATA_WIDTH-1] ?
-                   {1'b1, (~din[DATA_WIDTH-2:0] + 1'b1)} :
-                   din;
-    endfunction
-
-    task send(input [DATA_WIDTH-1:0] word, input bit oor);
-        @(posedge clk);
-        data_in      <= word;
-        out_of_range <= oor;
-    endtask
-
-    logic [DATA_WIDTH-1:0] exp_d0, exp_d1, exp_d2;
-    logic oor_d0, oor_d1, oor_d2;
-
-    initial begin
-        $display("\n=== RANDOM SAMPLER TEST===\n");
-
-        rst = 1;
-        data_in = 0;
-        out_of_range = 0;
-
-        exp_d0 = 0;
-        exp_d1 = 0;
-        exp_d2 = 0;
-
-        oor_d0 = 1;
-        oor_d1 = 1;
-        oor_d2 = 1;
-
-        repeat(5) @(posedge clk);
-        rst = 0;
-        repeat(2) @(posedge clk);
-
-        repeat (TEST_NUM) begin
-            logic [DATA_WIDTH-1:0] rand_data;
-            bit rand_oor;
-
-            rand_data = $urandom_range(0, (1 << DATA_WIDTH) - 1);
-            rand_oor  = ($urandom_range(0, 99) < 20);
-
-            @(negedge clk);
-
-            if (!oor_d2) begin
-                if (m_axis_tvalid !== 1) begin
-                    $display("ERROR: valid=0");
-                    errors++;
-                end
-
-                if (m_axis_tdata !== exp_d2) begin
-                    $display("ERROR: data mismatch");
-                    $display(" expected = %h", exp_d2);
-                    $display(" got      = %h", m_axis_tdata);
-                    errors++;
-                end
-            end
-
-            send(rand_data, rand_oor);
-
-            exp_d2 = exp_d1;
-            exp_d1 = exp_d0;
-            exp_d0 = ref_convert(rand_data);
-
-            oor_d2 = oor_d1;
-            oor_d1 = oor_d0;
-            oor_d0 = rand_oor;
-        end
-
-        @(posedge clk);
-
-
-        if (!oor_d2) begin
-        
-            if (m_axis_tdata !== exp_d2) begin
-                $display("ERROR: final mismatch");
-                $display(" expected = %h", exp_d2);
-                $display(" got      = %h", m_axis_tdata);
-                errors++;
-            end
-        end
-
-        if (errors == 0)
-            $display("\n========== ALL PASSED ==========\n");
-        else
-            $display("\n========== FAILED: %0d errors ==========\n", errors);
-
-        $finish;
-    end
-
-endmodule

rtl/sampler/tests/sampler_tb.sv

@@ -0,0 +1,241 @@
+`timescale 1ns / 1ps
+
+module sampler_tb #(
+    // Параметры тестбенча
+    parameter int DATA_WIDTH   = 12,    // bitwidth of sampled data. Equal to ADC bitwidth
+    parameter int PACK_FACTOR  = 1,     // packing of several numbers in one axi-stream tdata transaction
+    parameter bit PROCESS_MODE = 0,     // signed (1) / unsigned (0)
+    parameter real CLK_PERIOD  = 15.3846,
+    parameter int OTR_OFFSET   = 0      // Out of Range offset number clipping
+);
+    // Вычислимые константы
+    // Диапазон значений семплера
+    localparam int MIN_VALUE = PROCESS_MODE ? -2**(DATA_WIDTH-1)   : 0;
+    localparam int MAX_VALUE = PROCESS_MODE ?  2**(DATA_WIDTH-1)-1 : (2**DATA_WIDTH)-1;
+
+    logic clk;
+    logic rst_dut;
+    logic rst_gen;
+
+    wire [DATA_WIDTH-1:0] data_in;
+    wire out_of_range;
+
+    logic [31:0] smp_num;
+
+    logic done;
+    logic request;
+
+    logic [DATA_WIDTH*PACK_FACTOR-1:0] m_axis_tdata;
+    logic m_axis_tvalid;
+
+    sampler #(
+        .DATA_WIDTH  (DATA_WIDTH),
+        .PACK_FACTOR (PACK_FACTOR),
+        .PROCESS_MODE(PROCESS_MODE)
+    ) dut (
+        .clk_in       (clk),
+        .rst          (rst_dut),
+
+        .data_in      (data_in),
+        .out_of_range (out_of_range),
+
+        .smp_num      (smp_num),
+        .done         (done),
+
+        .m_axis_tdata (m_axis_tdata),
+        .m_axis_tvalid(m_axis_tvalid),
+
+        .request      (request)
+    );
+
+    // =====================================================
+    // CLOCK
+    // =====================================================
+    initial begin
+        clk = 0;
+        forever #(CLK_PERIOD/2) clk = ~clk;
+    end
+
+    // =====================================================
+    // RESET
+    // =====================================================
+    task automatic reset_dut();
+        @(posedge clk);
+        rst_dut = 1;
+        @(posedge clk);
+        rst_dut = 0;
+    endtask
+
+    // =====================================================
+    // FEED DATA
+    // =====================================================
+    triangle_wave_gen #(
+        .DATA_WIDTH(DATA_WIDTH),
+        .OFFSET(OTR_OFFSET), // offset of bits from '0 and '1 for OTR
+        .STEP(1) // LSB bit per clock
+    ) signal_gen (
+        .clk(clk),
+        .rst(rst_gen),
+        .signal(data_in),
+        .otr(out_of_range)
+    );
+
+    // =====================================================
+    // TEST TASKS
+    // =====================================================
+    task automatic run_test_case(
+        input int sample_num
+    );
+        logic [DATA_WIDTH-1:0] input_values[$];
+        logic [DATA_WIDTH-1:0] output_values[$];
+        bit flag;
+        int tmp_input_val, tmp_output_val;
+
+        // Startup sequence
+        rst_gen <= 1;
+        smp_num <= sample_num;
+        request <= 1;
+        @(posedge clk);
+        
+        // syncronize
+        while (!done)
+            @(posedge clk);
+        request <= 0;
+        
+        // Wait for sync and start signal generator
+        // while (!dut.synced)
+        //     @(posedge clk);
+        wait(dut.synced === 1);
+        rst_gen <= 0;
+
+        // Wait for valid data
+        fork
+            begin : stat_mon_proc
+                forever begin
+                    @(posedge clk);
+                    input_values.push_back(data_in);
+                    if (m_axis_tvalid) begin
+                        for (int i = 0; i < PACK_FACTOR; i++)
+                            output_values.push_back(m_axis_tdata[DATA_WIDTH*i +: DATA_WIDTH]);
+                    end
+                end
+            end
+        join_none
+
+        // Wait until end
+        // while (dut.synced)
+        //     @(posedge clk);
+        wait(dut.synced === 0);
+
+        disable stat_mon_proc;
+        // Pop last input value. Signal is ahead of tdata for 1 cycle
+        input_values.pop_back();
+
+        // check data length correct
+        if ((input_values.size() - (input_values.size() % PACK_FACTOR)) != output_values.size()) begin
+            $display("[ERROR] -run_test_case- Input queue size don't equal to output queue size: %0d vs %0d", input_values.size(), output_values.size());
+            $finish;
+        end
+        flag = 0;
+        for (int i = 0; i < output_values.size(); i++) begin
+            // clip value for OTR
+            tmp_input_val = int'(input_values[i]) + MIN_VALUE;
+            tmp_output_val = PROCESS_MODE ?
+                 int'($signed({output_values[i][DATA_WIDTH-1], output_values[i]})) :
+                 int'(output_values[i]);
+
+            if ((tmp_input_val < MIN_VALUE + OTR_OFFSET) || 
+                (tmp_input_val > MAX_VALUE - OTR_OFFSET)) begin
+                // need clipping
+                tmp_input_val = ((tmp_input_val - MIN_VALUE) < 2**(DATA_WIDTH-1)) ? 
+                    MIN_VALUE : MAX_VALUE;
+                end
+
+            if (tmp_input_val != tmp_output_val)
+                flag = 1;
+        end
+        // $display("Total: %0d", output_values.size());
+        if (flag) begin
+            $display("[ERROR] -run_test_case- Sampled data not correct and not equal to generated signal.");
+            $finish;
+        end
+    endtask
+
+    // =====================================================
+    // MAIN
+    // =====================================================
+    initial begin
+        int random_number;
+
+        $display("\n=== BASIC TEST ===");
+
+        rst_dut = 1;
+        rst_gen = 1;
+        smp_num = 0;
+        repeat(2) @(posedge clk);
+        rst_dut = 0;
+        repeat(2) @(posedge clk);
+
+        $display("basic test #1");
+        run_test_case(10);
+        run_test_case(100);
+        run_test_case(10000);
+        $display("basic test #2");
+        run_test_case(0);
+
+        $display("\n=== RANDOM STRESS TEST ===");
+        for (int i = 0; i < 10; i++) begin
+            $display("Random test #%0d", i);
+            random_number = $urandom_range(0, 3 * 2**(DATA_WIDTH)); // up to 1.5 triangle waves
+            run_test_case(random_number);
+        end
+        
+        $display("\n=== TEST FINISHED ===");
+        $finish;
+
+    end
+
+endmodule
+
+module triangle_wave_gen #(
+        parameter DATA_WIDTH = 12,
+        parameter OFFSET = 100, // offset of bits from '0 and '1 for OTR
+        parameter STEP = 1 // LSB bit per clock
+    ) (
+        input clk,
+        input rst,
+        output logic [DATA_WIDTH-1:0] signal,
+        output logic otr
+    );
+    logic [DATA_WIDTH:0] counter;
+    logic direction;
+
+    initial begin
+        counter = '0;
+        direction = 1;
+    end
+
+    assign signal = counter > (2**DATA_WIDTH-1) ? (2**DATA_WIDTH-1) : counter;
+
+    always_comb begin
+        if (signal < OFFSET || (2**DATA_WIDTH - signal) <= OFFSET)
+            otr <= 1;
+        else
+            otr <= 0;
+    end
+
+    always @(posedge clk) begin
+        if (rst) begin
+            counter = 0;
+            direction = 1;
+        end else begin
+            if (direction)
+                counter += STEP;
+            else
+                counter -= STEP;
+
+            if (counter >= 2**DATA_WIDTH-1 || counter <= 0)
+                direction <= ~direction;
+        end
+    end
+endmodule

scripts/questa.mk

@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: MIT
+###################################################################
+# Questa/ModelSim simulation helper
+#
+# Expected variables from the project Makefile:
+#   SYN_FILES    - RTL sources
+#   TB_FILES     - testbench sources
+#   INC_FILES    - include files, optional
+#   SIM_TOP      - simulation top module
+#   SIM_DEFS     - defines, optional
+#   SIM_RUNTIME  - run time, for example "10000 us" or "-all"
+#
+# Useful overrides:
+#   make sim-questa XILINX_VIVADO=/opt/Xilinx/Vivado/2024.2
+#   make sim-questa-gui
+###################################################################
+
+.PHONY: sim-questa sim-questa-gui questa-clean questa-xpm-clean
+
+VLIB ?= vlib
+VMAP ?= vmap
+VLOG ?= vlog
+VSIM ?= vsim
+
+QUESTA_WORK_LIB ?= work
+QUESTA_XPM_LIB  ?= xpm
+QUESTA_DIR      ?= questa_build
+QUESTA_TRANSCRIPT ?= transcript
+XILINX_VIVADO=/tools/Xilinx/2025.1/Vivado
+SIM_RUNTIME ?= 10000 us
+QUESTA_RUN ?= run $(SIM_RUNTIME)
+
+# XPM is needed by this design because accum.sv uses xpm_memory_sdpram and
+# out_axis_fifo.sv uses xpm_fifo_async. Point XILINX_VIVADO to your Vivado
+# install if it is not already exported by settings64.sh.
+QUESTA_USE_XPM ?= 1
+
+QUESTA_XPM_SRC = \
+	$(XILINX_VIVADO)/data/ip/xpm/xpm_cdc/hdl/xpm_cdc.sv \
+	$(XILINX_VIVADO)/data/ip/xpm/xpm_memory/hdl/xpm_memory.sv \
+	$(XILINX_VIVADO)/data/ip/xpm/xpm_fifo/hdl/xpm_fifo.sv
+
+QUESTA_GLBL_SRC = $(XILINX_VIVADO)/data/verilog/src/glbl.v
+
+QUESTA_DEFS = $(foreach d,$(SIM_DEFS),+define+$(d))
+QUESTA_INC_DIRS = $(sort $(dir $(SYN_FILES) $(TB_FILES) $(INC_FILES)))
+QUESTA_INCS = $(foreach d,$(QUESTA_INC_DIRS),+incdir+$(d))
+QUESTA_LIBS = $(if $(filter 1,$(QUESTA_USE_XPM)),-L $(QUESTA_XPM_LIB),)
+QUESTA_SOURCES = $(SYN_FILES) $(TB_FILES) $(if $(wildcard $(QUESTA_GLBL_SRC)),$(QUESTA_GLBL_SRC),)
+
+QUESTA_GLBL_TOP = $(if $(wildcard $(QUESTA_GLBL_SRC)),$(QUESTA_WORK_LIB).glbl,)
+
+
+$(QUESTA_DIR):
+	mkdir -p $@
+
+$(QUESTA_DIR)/sources.f: Makefile | $(QUESTA_DIR)
+	@rm -f $@
+	@for inc in $(QUESTA_INCS); do echo $$inc >> $@; done
+	@for src in $(QUESTA_SOURCES); do echo $$src >> $@; done
+
+$(QUESTA_DIR)/xpm.stamp: | $(QUESTA_DIR)
+	@if [ "$(QUESTA_USE_XPM)" = "1" ]; then \
+		if [ -z "$(XILINX_VIVADO)" ]; then \
+			echo "ERROR: XILINX_VIVADO is not set. Source Vivado settings64.sh or pass XILINX_VIVADO=/path/to/Vivado/<version>."; \
+			exit 1; \
+		fi; \
+		for src in $(QUESTA_XPM_SRC); do \
+			if [ ! -f $$src ]; then \
+				echo "ERROR: XPM source not found: $$src"; \
+				exit 1; \
+			fi; \
+		done; \
+		$(VLIB) $(QUESTA_XPM_LIB); \
+		$(VMAP) $(QUESTA_XPM_LIB) $(QUESTA_XPM_LIB); \
+		$(VLOG) -sv -work $(QUESTA_XPM_LIB) $(QUESTA_XPM_SRC); \
+	fi
+	@touch $@
+
+$(QUESTA_DIR)/compile.stamp: $(QUESTA_DIR)/sources.f $(SYN_FILES) $(TB_FILES) $(INC_FILES) $(QUESTA_DIR)/xpm.stamp
+	$(VLIB) $(QUESTA_WORK_LIB)
+	$(VMAP) $(QUESTA_WORK_LIB) $(QUESTA_WORK_LIB)
+	$(VLOG) -sv -work $(QUESTA_WORK_LIB) $(QUESTA_DEFS) -timescale 1ns/1ps $(QUESTA_INCS) -f $(QUESTA_DIR)/sources.f
+	@touch $@
+
+sim-questa: $(QUESTA_DIR)/compile.stamp
+	$(VSIM) -c $(QUESTA_LIBS) $(QUESTA_WORK_LIB).$(SIM_TOP) $(QUESTA_GLBL_TOP) -do "$(QUESTA_RUN); quit -f"
+
+sim-questa-gui: $(QUESTA_DIR)/compile.stamp
+	$(VSIM) $(QUESTA_LIBS) -voptargs="+acc" $(QUESTA_WORK_LIB).$(SIM_TOP) $(QUESTA_GLBL_TOP)
+
+questa-clean:
+	-rm -rf $(QUESTA_DIR) $(QUESTA_WORK_LIB) $(QUESTA_TRANSCRIPT) vsim.wlf *.wlf
+
+questa-xpm-clean: questa-clean
+	-rm -rf $(QUESTA_XPM_LIB)

software/gui.py

@@ -0,0 +1,736 @@
+# shitpost
+
+import sys
+import math
+import socket
+import platform
+
+from PyQt6 import uic
+from dataclasses import dataclass
+from PyQt6.QtCore import QProcess, QTimer
+from PyQt6.QtCore import QObject, QThread, pyqtSignal
+
+from PyQt6.QtCore import Qt
+import pyqtgraph as pg
+from PyQt6.QtWidgets import QApplication, QMainWindow
+
+
+@dataclass
+class ReflectometerConfig:
+    ip: str
+    send_port: int
+    recv_port: int
+
+    dac_bits: int
+    data_width: int
+    window_size: int
+    packet_size: int
+
+    pulse_width: int
+    pulse_period: int
+    pulse_height: int
+    pulse_num: int
+
+    adc_dac_ratio: float = 0.52
+    socket_timeout_sec: float = 2.0
+
+
+class ReflectometerWorker(QObject):
+    data_ready = pyqtSignal(list)
+    status = pyqtSignal(str)
+    error = pyqtSignal(str)
+    finished = pyqtSignal()
+
+    def __init__(self, config: ReflectometerConfig):
+        super().__init__()
+        self.config = config
+        self._stop_requested = False
+        self._sock = None
+
+    def stop(self):
+        self._stop_requested = True
+
+        if self._sock is not None:
+            try:
+                self._sock.close()
+            except OSError:
+                pass
+
+    def run(self):
+        try:
+            self._validate_config()
+
+            self.status.emit("Открытие UDP-сокета...")
+
+            self._sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+            self._sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+            self._sock.settimeout(self.config.socket_timeout_sec)
+            self._sock.bind(("0.0.0.0", self.config.recv_port))
+
+            dest = (self.config.ip, self.config.send_port)
+
+            self.status.emit("Отправка soft reset...")
+            self._sock.sendto((0x0F00).to_bytes(2, "big"), dest)
+
+            self.status.emit("Отправка параметров...")
+            ctrl_data = self._format_ctrl_data()
+            self._sock.sendto(ctrl_data, dest)
+
+            self.status.emit("Отправка start...")
+            self._sock.sendto((0xF000).to_bytes(2, "big"), dest)
+
+            self.status.emit("Приём данных...")
+            data = self._recv_data()
+
+            if self._stop_requested:
+                self.status.emit("Операция остановлена")
+                return
+
+            self.data_ready.emit(data)
+            self.status.emit(f"Получено samples: {len(data)}")
+
+        except Exception as e:
+            if not self._stop_requested:
+                self.error.emit(str(e))
+
+        finally:
+            if self._sock is not None:
+                try:
+                    self._sock.close()
+                except OSError:
+                    pass
+
+            self.finished.emit()
+
+    def _format_ctrl_data(self) -> bytes:
+        output = bytearray()
+
+        output += 0b10001000.to_bytes(1, "little")
+
+        pulse_period_adc = (
+            int(self.config.pulse_period * self.config.adc_dac_ratio)
+            // self.config.window_size
+        ) * self.config.window_size
+
+        output += self.config.pulse_width.to_bytes(4, "little")
+        output += self.config.pulse_period.to_bytes(4, "little")
+        output += self.config.pulse_num.to_bytes(2, "little")
+        output += self.config.pulse_height.to_bytes(2, "little")
+        output += pulse_period_adc.to_bytes(4, "little")
+
+        if len(output) != 17:
+            raise ValueError("Config data should be 128 bits + 8 bit header")
+
+        return bytes(output)
+
+    def _recv_data(self) -> list[int]:
+        packet_count = math.ceil(
+            (
+                self.config.adc_dac_ratio
+                * self.config.pulse_period
+                / self.config.window_size
+                * self.config.data_width
+            )
+            / self.config.packet_size
+        )
+
+        expected_length = math.ceil(
+            self.config.adc_dac_ratio
+            * self.config.pulse_period
+            / self.config.window_size
+        )
+
+        recv_buf = []
+
+        for pkt_cnt in range(packet_count):
+            if self._stop_requested:
+                break
+
+            try:
+                packet, _ = self._sock.recvfrom(65536)
+            except socket.timeout:
+                raise TimeoutError(f"Таймаут приёма UDP-пакета #{pkt_cnt + 1}")
+
+            if len(packet) % self.config.data_width != 0:
+                raise ValueError(
+                    f"Некорректный размер UDP-пакета: {len(packet)} байт"
+                )
+
+            for i in range(0, len(packet), self.config.data_width):
+                sample = int.from_bytes(
+                    packet[i:i + self.config.data_width],
+                    "little",
+                )
+                recv_buf.append(sample)
+
+        if len(recv_buf) < expected_length:
+            raise ValueError(
+                f"Data underflow: получено {len(recv_buf)}, ожидалось {expected_length}"
+            )
+
+        return recv_buf[:expected_length - 1]
+
+    def _validate_config(self):
+        if self.config.pulse_period <= 0:
+            raise ValueError("pulse_period должен быть больше 0")
+
+        if self.config.pulse_num <= 0:
+            raise ValueError("pulse_num должен быть больше 0")
+
+        if self.config.window_size <= 0:
+            raise ValueError("window_size должен быть больше 0")
+
+        if self.config.packet_size <= 0:
+            raise ValueError("packet_size должен быть больше 0")
+
+        if self.config.data_width <= 0:
+            raise ValueError("data_width должен быть больше 0")
+
+        if self.config.pulse_period % self.config.window_size != 0:
+            raise ValueError("pulse_period должен быть кратен window_size")
+
+        if self.config.pulse_width >= 2**32 - 1:
+            raise ValueError("pulse_width слишком большой")
+
+        if self.config.pulse_period >= 2**32 - 1:
+            raise ValueError("pulse_period слишком большой")
+
+        if self.config.pulse_num >= 2**16 - 1:
+            raise ValueError("pulse_num слишком большой")
+
+        if self.config.pulse_height > 2**self.config.dac_bits - 1:
+            raise ValueError("pulse_height слишком большой")
+
+
+class MainWindow(QMainWindow):
+    def __init__(self):
+        super().__init__()
+
+        uic.loadUi("reflectometer.ui", self)
+
+        self.ping_process = None
+
+        self.ping_timeout_timer = QTimer(self)
+        self.ping_timeout_timer.setSingleShot(True)
+        self.ping_timeout_timer.timeout.connect(self.on_ping_timeout)
+
+        self.button_ping.clicked.connect(self.check_ping)
+
+        # settings
+        self.pulse_period = 0
+        self.pulse_height = 0
+        self.pulse_width = 0
+        self.pulse_num = 0
+
+        self.dac_dw = 14
+        self.adc_dw = 12
+        self.nmax = 4096
+        self.packet_size = 1024
+        self.window_size = 65
+        self.adc_dac_ration = 0.52
+        self.accum_width = 32
+
+        # setup
+
+        self.setup_pulse_controls()
+        self.setup_global_settings()
+
+        self.update_pulse_limits()
+
+        self.data = []
+
+        self.adc_dac_ratio = 0.52
+
+        self.measurement_thread = None
+        self.measurement_worker = None
+
+        self.setup_graph()
+        self.setup_network_settings()
+
+        self.button_start.clicked.connect(self.run_measurement)
+        self.button_graph_autoscale.clicked.connect(self.reset_graph_autoscale)
+
+    # ping utils
+
+    def check_ping(self):
+        ip = self.line_ip.text().strip()
+
+        if not ip:
+            self.label_ping_status.setText("set ip!!")
+            return
+
+        if "_" in self.line_ip.displayText():
+            self.label_ping_status.setText("IP invalid")
+            return
+
+        if self.ping_process is not None:
+            if self.ping_process.state() != QProcess.ProcessState.NotRunning:
+                self.label_ping_status.setText("Ping inflight")
+                return
+
+        self.label_ping_status.setText("ping...")
+        self.button_ping.setEnabled(False)
+
+        self.ping_process = QProcess(self)
+
+        self.ping_process.finished.connect(self.on_ping_finished)
+        self.ping_process.errorOccurred.connect(self.on_ping_error)
+
+        system_name = platform.system().lower()
+
+        if system_name == "windows":
+            program = "ping"
+            arguments = ["-n", "1", "-w", "2000", ip]
+        else:
+            program = "ping"
+            arguments = ["-c", "1", "-W", "2", ip]
+
+        self.ping_process.start(program, arguments)
+        # fallback
+        self.ping_timeout_timer.start(2000)
+
+    def on_ping_finished(self, exit_code, exit_status):
+        self.ping_timeout_timer.stop()
+        self.button_ping.setEnabled(True)
+
+        if exit_code == 0:
+            self.label_ping_status.setText("алё✅")
+        else:
+            self.label_ping_status.setText("не алё❌")
+
+    def on_ping_error(self):
+        self.ping_timeout_timer.stop()
+        self.button_ping.setEnabled(True)
+        self.label_ping_status.setText("ping unavail")
+
+    def on_ping_timeout(self):
+        if self.ping_process is not None:
+            if self.ping_process.state() != QProcess.ProcessState.NotRunning:
+                self.ping_process.kill()
+
+        self.button_ping.setEnabled(True)
+
+    # pulse controls
+    def setup_pulse_controls(self):
+        self._bind_slider_and_spinbox(
+            name="pulse_period",
+            slider=self.slider_pulse_period,
+            box=self.box_pulse_period,
+            normalize_value=self.normalize_pulse_period,
+        )
+
+        self._bind_slider_and_spinbox(
+            name="pulse_height",
+            slider=self.slider_pulse_height,
+            box=self.box_pulse_height,
+        )
+
+        self._bind_slider_and_spinbox(
+            name="pulse_width",
+            slider=self.slider_pulse_width,
+            box=self.box_pulse_width,
+        )
+
+        self._bind_slider_and_spinbox(
+            name="pulse_num",
+            slider=self.slider_pulse_num,
+            box=self.box_pulse_num,
+        )
+
+    def _bind_slider_and_spinbox(self, name, slider, box, normalize_value=None):
+        """
+        Связывает QSlider и QSpinBox по значению.
+        Значение автоматически записывается в self.<name>.
+        """
+
+        minimum = min(slider.minimum(), box.minimum())
+        maximum = max(slider.maximum(), box.maximum())
+
+        slider.setRange(minimum, maximum)
+        box.setRange(minimum, maximum)
+
+        def normalize(value):
+            if normalize_value is None:
+                return value
+
+            return normalize_value(value)
+
+        value = normalize(box.value())
+
+        slider.setValue(value)
+        box.setValue(value)
+        setattr(self, name, value)
+
+        def update_value(new_value):
+            new_value = normalize(new_value)
+
+            if slider.value() != new_value:
+                slider.setValue(new_value)
+
+            if box.value() != new_value:
+                box.setValue(new_value)
+
+            setattr(self, name, new_value)
+
+        slider.valueChanged.connect(update_value)
+        box.valueChanged.connect(update_value)
+
+    def normalize_pulse_period(self, value):
+        step = max(1, getattr(self, "window_size",
+                   self.box_window_size.value()))
+
+        snapped_value = round(value / step) * step
+
+        minimum = self.box_pulse_period.minimum()
+        maximum = self.box_pulse_period.maximum()
+
+        return max(minimum, min(snapped_value, maximum))
+
+    def _set_max_for_pair(self, slider, box, maximum):
+        slider.setMaximum(maximum)
+        box.setMaximum(maximum)
+
+        value = min(box.value(), maximum)
+        box.setValue(value)
+        slider.setValue(value)
+
+    def set_max_pulse_period(self, maximum):
+        self._set_max_for_pair(
+            slider=self.slider_pulse_period,
+            box=self.box_pulse_period,
+            maximum=maximum,
+        )
+        self.pulse_period = self.box_pulse_period.value()
+
+    def set_max_pulse_height(self, maximum):
+        self._set_max_for_pair(
+            slider=self.slider_pulse_height,
+            box=self.box_pulse_height,
+            maximum=maximum,
+        )
+        self.pulse_height = self.box_pulse_height.value()
+
+    def set_max_pulse_width(self, maximum):
+        self._set_max_for_pair(
+            slider=self.slider_pulse_width,
+            box=self.box_pulse_width,
+            maximum=maximum,
+        )
+        self.pulse_width = self.box_pulse_width.value()
+
+    def set_max_pulse_num(self, maximum):
+        self._set_max_for_pair(
+            slider=self.slider_pulse_num,
+            box=self.box_pulse_num,
+            maximum=maximum,
+        )
+        self.pulse_num = self.box_pulse_num.value()
+
+    # settings
+
+    def setup_global_settings(self):
+        self._bind_spinbox_setting(
+            name="dac_dw",
+            box=self.box_dac_dw,
+        )
+
+        self._bind_spinbox_setting(
+            name="adc_dw",
+            box=self.box_adc_dw,
+        )
+
+        self._bind_spinbox_setting(
+            name="nmax",
+            box=self.box_nmax,
+        )
+
+        self._bind_spinbox_setting(
+            name="window_size",
+            box=self.box_window_size,
+            after_change=self.on_window_size_changed,
+        )
+
+        self._bind_spinbox_setting(
+            name="packet_size",
+            box=self.box_packet_size,
+        )
+
+        self._bind_spinbox_setting(
+            name="adc_dac_ratio",
+            box=self.box_adc_dac_ratio,
+        )
+
+        self._bind_spinbox_setting(
+            name="accum_width",
+            box=self.box_accum_width,
+        )
+
+        self._bind_spinbox_setting(
+            name="recv_port",
+            box=self.box_recv_port,
+        )
+
+        self._bind_spinbox_setting(
+            name="send_port",
+            box=self.box_send_port,
+        )
+
+        # применяем шаг для pulse_period сразу при старте
+        self.update_pulse_period_step()
+
+    def _bind_spinbox_setting(self, name, box, after_change=None):
+        """
+        Связывает QSpinBox с полем self.<name>.
+        Например:
+        box_dac_dw -> self.dac_dw
+        box_window_size -> self.window_size
+        """
+
+        value = box.value()
+        setattr(self, name, value)
+
+        def on_value_changed(new_value):
+            setattr(self, name, new_value)
+
+            self.update_pulse_limits()
+
+            if after_change is not None:
+                after_change(new_value)
+
+        box.valueChanged.connect(on_value_changed)
+
+    def update_pulse_limits(self):
+        # re-calc limits
+
+        # nmax -> pulse_period limit
+        self.set_max_pulse_period(self.nmax * self.window_size)
+        self.set_max_pulse_width(self.nmax * self.window_size)
+        # accum_width + adc_width -> max pulse num
+
+        self.set_max_pulse_num(
+            2 ** (self.accum_width - self.adc_dw - math.ceil(math.log2(self.window_size))) - 1)
+        # dac_width -> max pulse height
+        self.set_max_pulse_height(2 ** self.dac_dw - 1)
+
+        self.slider_pulse_period.setMinimum(self.window_size)
+        self.box_pulse_period.setMinimum(self.window_size)
+
+    def on_window_size_changed(self, new_value):
+        self.update_pulse_period_step()
+
+    def update_pulse_period_step(self):
+        # set window_size step
+
+        step = max(1, self.window_size)
+
+        self.box_pulse_period.setSingleStep(step)
+        self.slider_pulse_period.setSingleStep(step)
+        self.slider_pulse_period.setPageStep(step)
+
+        self.snap_pulse_period_to_step(step)
+
+    def snap_pulse_period_to_step(self, step):
+        """
+        Подгоняет текущее значение pulse_period к ближайшему кратному window_size.
+
+        Это нужно потому, что QSlider при перетаскивании мышкой
+        всё равно может дать любое промежуточное значение.
+        """
+
+        current_value = self.box_pulse_period.value()
+
+        snapped_value = round(current_value / step) * step
+
+        minimum = self.box_pulse_period.minimum()
+        maximum = self.box_pulse_period.maximum()
+
+        snapped_value = max(minimum, min(snapped_value, maximum))
+
+        self.box_pulse_period.setValue(snapped_value)
+        self.slider_pulse_period.setValue(snapped_value)
+        self.pulse_period = snapped_value
+
+    # graph
+    def setup_graph(self):
+        self.graph_widget = pg.PlotWidget()
+        self.graph_widget.setLabel("left", "ADC value")
+        self.graph_widget.setLabel("bottom", "Sample")
+        self.graph_widget.showGrid(x=True, y=True)
+
+        self.graph_curve = self.graph_widget.plot(
+            [],
+            name="Data",
+        )
+
+        self.reference_curve = self.graph_widget.plot(
+            [],
+            name="Reference",
+        )
+
+        self.graph_layout.addWidget(self.graph_widget)
+        self.graph_curve = self.graph_widget.plot(
+            [], pen=pg.mkPen(width=2, color="b"))
+        self.reference_curve = self.graph_widget.plot(
+            [], pen=pg.mkPen(style=Qt.PenStyle.DashLine, color="g"))
+
+        self.checkbox_draw_reference.stateChanged.connect(
+            self.update_reference_graph)
+
+    def setup_network_settings(self):
+        self._bind_spinbox_setting(
+            name="recv_port",
+            box=self.box_recv_port,
+        )
+
+        self._bind_spinbox_setting(
+            name="send_port",
+            box=self.box_send_port,
+        )
+
+    def run_measurement(self):
+        if self.measurement_thread is not None:
+            if self.measurement_thread.isRunning():
+                self.set_measurement_status("Измерение выполняется")
+                return
+
+        config = self.build_reflectometer_config()
+
+        self.data = []
+        self.graph_curve.setData([])
+
+        self.measurement_thread = QThread(self)
+        self.measurement_worker = ReflectometerWorker(config)
+
+        self.measurement_worker.moveToThread(self.measurement_thread)
+
+        self.measurement_thread.started.connect(self.measurement_worker.run)
+
+        self.measurement_worker.status.connect(self.set_measurement_status)
+        self.measurement_worker.error.connect(self.on_measurement_error)
+        self.measurement_worker.data_ready.connect(self.on_data_received)
+
+        self.measurement_worker.finished.connect(self.measurement_thread.quit)
+        self.measurement_worker.finished.connect(
+            self.measurement_worker.deleteLater)
+
+        self.measurement_thread.finished.connect(
+            self.measurement_thread.deleteLater)
+        self.measurement_thread.finished.connect(self.on_measurement_finished)
+
+        self.measurement_thread.start()
+
+    def build_reflectometer_config(self) -> ReflectometerConfig:
+        ip = self.line_ip.text().strip()
+
+        if not ip:
+            raise ValueError("IP адрес не задан")
+
+        data_width = self.accum_width // 8
+
+        return ReflectometerConfig(
+            ip=ip,
+            send_port=self.send_port,
+            recv_port=self.recv_port,
+
+            dac_bits=self.dac_dw,
+            data_width=data_width,
+            window_size=self.window_size,
+            packet_size=self.packet_size,
+
+            pulse_width=self.pulse_width,
+            pulse_period=self.pulse_period,
+            pulse_height=self.pulse_height,
+            pulse_num=self.pulse_num,
+
+            adc_dac_ratio=self.adc_dac_ratio,
+        )
+
+    def on_data_received(self, data: list[int]):
+        self.data = data
+        # normalize
+        for i in range(len(data)):
+            self.data[i] /= (self.window_size * self.pulse_num)
+            self.data[i] -= 2 ** (self.adc_dw - 1) + 1
+
+        self.draw_main_graph()
+        self.update_reference_graph()
+
+        if data:
+            self.set_measurement_status(
+                f"Готово. smp: {len(data)}, min: {min(data)}, max: {max(data)}"
+            )
+        else:
+            self.set_measurement_status("Данные пустые")
+
+    def on_measurement_error(self, message: str):
+        self.set_measurement_status(f"Ошибка: {message}")
+
+    def on_measurement_finished(self):
+        self.measurement_worker = None
+        self.measurement_thread = None
+
+    def stop_measurement(self):
+        if self.measurement_worker is not None:
+            self.measurement_worker.stop()
+
+    def set_measurement_status(self, text: str):
+        self.label_status.setText(text)
+
+    def draw_main_graph(self):
+        if not self.data:
+            self.graph_curve.setData([])
+            return
+
+        x = list(range(len(self.data)))
+        self.graph_curve.setData(x, self.data)
+
+    def update_reference_graph(self):
+        """
+        Рисует или очищает эталонный график.
+        Вызывается после получения данных и при переключении checkbox_draw_reference.
+        """
+
+        if not self.checkbox_draw_reference.isChecked():
+            self.reference_curve.setData([])
+            return
+
+        if not self.data:
+            self.reference_curve.setData([])
+            return
+
+        reference_data = self.build_reference_data(len(self.data))
+
+        if not reference_data:
+            self.reference_curve.setData([])
+            return
+
+        x = list(range(len(reference_data)))
+        self.reference_curve.setData(x, reference_data)
+
+    def build_reference_data(self, length: int) -> list[int]:
+        reference = [0] * length
+
+        actual_pulse_width = round(
+            (self.pulse_width * self.adc_dac_ratio) / self.window_size)
+
+        reference[0:actual_pulse_width] = [
+            (self.pulse_height / 2 ** (self.dac_dw - self.adc_dw)) - 2 ** (self.adc_dw - 1), ] * (actual_pulse_width - 1)
+
+        return reference
+
+    def reset_graph_autoscale(self):
+        self.graph_widget.enableAutoRange(axis="xy", enable=True)
+        self.graph_widget.autoRange()
+
+
+def main():
+    app = QApplication(sys.argv)
+
+    window = MainWindow()
+    window.show()
+
+    sys.exit(app.exec())
+
+
+if __name__ == "__main__":
+    main()

software/reflectometer.ui

@@ -0,0 +1,505 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1023</width>
+    <height>708</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Reflectometer PREMIUM</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QHBoxLayout" name="horizontalLayout" stretch="4,2">
+    <item>
+     <layout class="QVBoxLayout" name="graph_layout"/>
+    </item>
+    <item>
+     <layout class="QVBoxLayout" name="settings_layout">
+      <item>
+       <widget class="QTabWidget" name="tabWidget">
+        <property name="currentIndex">
+         <number>1</number>
+        </property>
+        <widget class="QWidget" name="tab">
+         <attribute name="title">
+          <string>Настройки</string>
+         </attribute>
+         <layout class="QVBoxLayout" name="verticalLayout_2">
+          <item>
+           <widget class="QScrollArea" name="scrollArea">
+            <property name="widgetResizable">
+             <bool>true</bool>
+            </property>
+            <widget class="QWidget" name="scrollAreaWidgetContents">
+             <property name="geometry">
+              <rect>
+               <x>0</x>
+               <y>0</y>
+               <width>294</width>
+               <height>621</height>
+              </rect>
+             </property>
+             <layout class="QVBoxLayout" name="verticalLayout">
+              <item>
+               <widget class="QLabel" name="label_2">
+                <property name="font">
+                 <font>
+                  <pointsize>12</pointsize>
+                 </font>
+                </property>
+                <property name="text">
+                 <string>Аппаратные параметры</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QSpinBox" name="box_dac_dw">
+                <property name="suffix">
+                 <string> bits</string>
+                </property>
+                <property name="prefix">
+                 <string>DAC data width: </string>
+                </property>
+                <property name="minimum">
+                 <number>8</number>
+                </property>
+                <property name="maximum">
+                 <number>32</number>
+                </property>
+                <property name="value">
+                 <number>14</number>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QSpinBox" name="box_adc_dw">
+                <property name="suffix">
+                 <string> bits</string>
+                </property>
+                <property name="prefix">
+                 <string>ADC data width: </string>
+                </property>
+                <property name="minimum">
+                 <number>8</number>
+                </property>
+                <property name="maximum">
+                 <number>32</number>
+                </property>
+                <property name="value">
+                 <number>12</number>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QSpinBox" name="box_accum_width">
+                <property name="suffix">
+                 <string> bits</string>
+                </property>
+                <property name="prefix">
+                 <string>Accum width: </string>
+                </property>
+                <property name="minimum">
+                 <number>16</number>
+                </property>
+                <property name="maximum">
+                 <number>64</number>
+                </property>
+                <property name="singleStep">
+                 <number>8</number>
+                </property>
+                <property name="value">
+                 <number>32</number>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QDoubleSpinBox" name="box_adc_dac_ratio">
+                <property name="prefix">
+                 <string>ADC:DAC clk ratio: </string>
+                </property>
+                <property name="minimum">
+                 <double>0.200000000000000</double>
+                </property>
+                <property name="maximum">
+                 <double>3.000000000000000</double>
+                </property>
+                <property name="singleStep">
+                 <double>0.010000000000000</double>
+                </property>
+                <property name="value">
+                 <double>0.520000000000000</double>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QSpinBox" name="box_nmax">
+                <property name="prefix">
+                 <string>N Max: </string>
+                </property>
+                <property name="minimum">
+                 <number>512</number>
+                </property>
+                <property name="maximum">
+                 <number>65536</number>
+                </property>
+                <property name="value">
+                 <number>4096</number>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QSpinBox" name="box_window_size">
+                <property name="prefix">
+                 <string>Window size: </string>
+                </property>
+                <property name="minimum">
+                 <number>1</number>
+                </property>
+                <property name="maximum">
+                 <number>1024</number>
+                </property>
+                <property name="value">
+                 <number>65</number>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QSpinBox" name="box_packet_size">
+                <property name="suffix">
+                 <string> bytes</string>
+                </property>
+                <property name="prefix">
+                 <string>Packet size: </string>
+                </property>
+                <property name="minimum">
+                 <number>1</number>
+                </property>
+                <property name="maximum">
+                 <number>1572</number>
+                </property>
+                <property name="value">
+                 <number>1024</number>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="Line" name="line_2">
+                <property name="orientation">
+                 <enum>Qt::Orientation::Horizontal</enum>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QLabel" name="label">
+                <property name="font">
+                 <font>
+                  <pointsize>12</pointsize>
+                 </font>
+                </property>
+                <property name="text">
+                 <string>Подключение</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QLabel" name="label_3">
+                <property name="text">
+                 <string>IP устройства:</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QLineEdit" name="line_ip">
+                <property name="inputMask">
+                 <string>999.999.999.999</string>
+                </property>
+                <property name="text">
+                 <string>192.168.0.2</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QLabel" name="label_4">
+                <property name="text">
+                 <string>Порт отправки:</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QSpinBox" name="box_send_port">
+                <property name="minimum">
+                 <number>80</number>
+                </property>
+                <property name="maximum">
+                 <number>65536</number>
+                </property>
+                <property name="value">
+                 <number>8080</number>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QLabel" name="label_5">
+                <property name="text">
+                 <string>Порт приёма:</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QSpinBox" name="box_recv_port">
+                <property name="minimum">
+                 <number>80</number>
+                </property>
+                <property name="maximum">
+                 <number>65536</number>
+                </property>
+                <property name="value">
+                 <number>8080</number>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QLabel" name="label_6">
+                <property name="font">
+                 <font>
+                  <pointsize>12</pointsize>
+                 </font>
+                </property>
+                <property name="text">
+                 <string>Тест</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QPushButton" name="button_ping">
+                <property name="text">
+                 <string>алё</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QLabel" name="label_ping_status">
+                <property name="text">
+                 <string>...</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignmentFlag::AlignCenter</set>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <spacer name="verticalSpacer">
+                <property name="orientation">
+                 <enum>Qt::Orientation::Vertical</enum>
+                </property>
+                <property name="sizeHint" stdset="0">
+                 <size>
+                  <width>20</width>
+                  <height>40</height>
+                 </size>
+                </property>
+               </spacer>
+              </item>
+             </layout>
+            </widget>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+        <widget class="QWidget" name="tab_2">
+         <attribute name="title">
+          <string>Управление</string>
+         </attribute>
+         <layout class="QVBoxLayout" name="verticalLayout_3">
+          <item>
+           <widget class="QLabel" name="label_7">
+            <property name="font">
+             <font>
+              <pointsize>12</pointsize>
+             </font>
+            </property>
+            <property name="text">
+             <string>Импульс</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_2" stretch="1,1,2">
+            <item>
+             <widget class="QLabel" name="label_8">
+              <property name="text">
+               <string>Период</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="box_pulse_period">
+              <property name="minimum">
+               <number>1</number>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSlider" name="slider_pulse_period">
+              <property name="orientation">
+               <enum>Qt::Orientation::Horizontal</enum>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_3" stretch="1,1,2">
+            <item>
+             <widget class="QLabel" name="label_9">
+              <property name="text">
+               <string>Ширина</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="box_pulse_width"/>
+            </item>
+            <item>
+             <widget class="QSlider" name="slider_pulse_width">
+              <property name="orientation">
+               <enum>Qt::Orientation::Horizontal</enum>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_4" stretch="1,1,2">
+            <item>
+             <widget class="QLabel" name="label_10">
+              <property name="text">
+               <string>Высота</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="box_pulse_height"/>
+            </item>
+            <item>
+             <widget class="QSlider" name="slider_pulse_height">
+              <property name="orientation">
+               <enum>Qt::Orientation::Horizontal</enum>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_5" stretch="1,1,2">
+            <item>
+             <widget class="QLabel" name="label_11">
+              <property name="text">
+               <string>Количество</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSpinBox" name="box_pulse_num">
+              <property name="minimum">
+               <number>1</number>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QSlider" name="slider_pulse_num">
+              <property name="minimum">
+               <number>1</number>
+              </property>
+              <property name="orientation">
+               <enum>Qt::Orientation::Horizontal</enum>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
+          <item>
+           <widget class="QPushButton" name="button_start">
+            <property name="text">
+             <string>start!</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_6" stretch="1,3">
+            <item>
+             <widget class="QLabel" name="label_13">
+              <property name="font">
+               <font>
+                <bold>true</bold>
+               </font>
+              </property>
+              <property name="text">
+               <string>Статус:</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QLabel" name="label_status">
+              <property name="text">
+               <string>-</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkbox_draw_reference">
+            <property name="text">
+             <string>Отрисовка эталона</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="verticalSpacer_2">
+            <property name="orientation">
+             <enum>Qt::Orientation::Vertical</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>20</width>
+              <height>40</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+          <item>
+           <widget class="QPushButton" name="button_graph_autoscale">
+            <property name="text">
+             <string>Сброс масштаба</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>1023</width>
+     <height>30</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>