From d71aaf1650f38d466dc7f3ab27cbb037351f88da Mon Sep 17 00:00:00 2001
From: Zer0Nu11 <levo950@gmail.com>
Date: Fri, 19 Jun 2026 08:05:03 +0300
Subject: [PATCH] fix: request/done protocol

---
 rtl/sampler/src/sampler.sv | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/rtl/sampler/src/sampler.sv b/rtl/sampler/src/sampler.sv
index 0b3172b..b67da01 100644
--- a/rtl/sampler/src/sampler.sv
+++ b/rtl/sampler/src/sampler.sv
@@ -12,11 +12,11 @@ module sampler
     input [DATA_WIDTH-1:0] data_in,
     input out_of_range,
     input [31:0] smp_num,
-    input done,
+    input request,
 
     output logic [DATA_WIDTH*PACK_FACTOR-1:0]  m_axis_tdata,
     output logic                              m_axis_tvalid,
-    output logic request
+    output logic done
     );
     logic [DATA_WIDTH-1:0] data_converted;
     logic out_of_range_reg;
@@ -66,18 +66,18 @@ module sampler
                     cnt_smp_num <= '0;
                     smp_num_reg <= '0;
                     enable <= 0;
-                    request <= 0;
+                    done <= 0;
                 end
                 else begin
                     buffer_ready <= 0;
                     if (!enable) begin
-                        if (request && done) begin
+                        if (done && request) begin
                             enable  <= 1;
-                            request <= 0;
+                            done <= 0;
                             cnt_smp_num <= 0;
                             smp_num_reg <= smp_num;
                         end else begin
-                            request <= 1;
+                            done <= 1;
                         end
                     end else begin
                         if (cnt_smp_num != smp_num_reg) begin
@@ -104,17 +104,17 @@ module sampler
                     cnt_smp_num <= '0;
                     smp_num_reg <= '0;
                     enable <= 0;
-                    request <= 0;
+                    done <= 0;
                 end else begin
                     buffer_ready <= 0;
                     if (!enable) begin
-                        if (request && done) begin
+                        if (done && request) begin
                             enable  <= 1;
-                            request <= 0;
+                            done <= 0;
                             cnt_smp_num <= 0;
                             smp_num_reg <= smp_num;
                         end else begin
-                            request <= 1;
+                            done <= 1;
                         end
                     end else begin
                         if (cnt_smp_num != smp_num_reg) begin