diff --git a/rtl/accum/tests/out_axis_fifo_tb.sv b/rtl/accum/tests/out_axis_fifo_tb.sv
index 2d3943d..56135ff 100644
--- a/rtl/accum/tests/out_axis_fifo_tb.sv
+++ b/rtl/accum/tests/out_axis_fifo_tb.sv
@@ -4,7 +4,7 @@ module tb_out_axis_fifo;
 
     localparam int ACCUM_WIDTH = 32;
     localparam int WINDOW_SIZE = 65;
-    localparam int PACKET_SIZE = 1024;
+    localparam int PACKET_SIZE = 8;
     localparam int BYTES_PER_WORD = ACCUM_WIDTH / 8;
     localparam int WORDS_PER_BATCH = PACKET_SIZE / BYTES_PER_WORD; // 1024 / 4 = 256 слов
 
@@ -14,10 +14,10 @@ module tb_out_axis_fifo;
 
     logic [31:0] smp_num;
 
-    logic [7:0]  s_axis_tdata;
-    logic        s_axis_tvalid;
-    logic        s_axis_tready;
-    logic        s_axis_tlast;
+    logic [7:0]  m_axis_tdata;
+    logic        m_axis_tvalid;
+    logic        m_axis_tready;
+    logic        m_axis_tlast;
 
     logic [ACCUM_WIDTH-1:0] acc_din;
     logic                   din_valid;
@@ -40,10 +40,10 @@ module tb_out_axis_fifo;
         .rst           (rst),
         .smp_num       (smp_num),
 
-        .s_axis_tdata  (s_axis_tdata),
-        .s_axis_tvalid (s_axis_tvalid),
-        .s_axis_tready (s_axis_tready),
-        .s_axis_tlast  (s_axis_tlast),
+        .m_axis_tdata  (m_axis_tdata),
+        .m_axis_tvalid (m_axis_tvalid),
+        .m_axis_tready (m_axis_tready),
+        .m_axis_tlast  (m_axis_tlast),
 
         .acc_din       (acc_din),
         .din_valid     (din_valid),
@@ -113,18 +113,18 @@ module tb_out_axis_fifo;
             compared_bytes <= 0;
             mismatch_count <= 0;
         end else begin
-            if (s_axis_tvalid && s_axis_tready) begin
+            if (m_axis_tvalid && m_axis_tready) begin
                 if (expected_bytes.size() == 0) begin
                     $error("[%0t] AXIS produced unexpected byte 0x%02x: expected queue is empty",
-                           $time, s_axis_tdata);
+                           $time, m_axis_tdata);
                     mismatch_count <= mismatch_count + 1;
                 end else begin
                     exp_byte = expected_bytes.pop_front();
                     compared_bytes <= compared_bytes + 1;
 
-                    if (s_axis_tdata !== exp_byte) begin
+                    if (m_axis_tdata !== exp_byte) begin
                         $error("[%0t] AXIS mismatch at byte #%0d: got=0x%02x expected=0x%02x",
-                               $time, compared_bytes, s_axis_tdata, exp_byte);
+                               $time, compared_bytes, m_axis_tdata, exp_byte);
                         mismatch_count <= mismatch_count + 1;
                     end
                 end
@@ -236,17 +236,17 @@ module tb_out_axis_fifo;
         if (rst) begin
             axis_byte_count <= 0;
             req_ready       <= 0;
-            s_axis_tready   <= 1'b0;
+            m_axis_tready   <= 1'b0;
         end else begin
             req_ready <= 1;
 
             // request send
             if (send_req) begin
-                s_axis_tready <= 1'b1;
+                m_axis_tready <= 1'b1;
                 req_ready <= 0;
             end
 
-            if (s_axis_tvalid && s_axis_tready) begin
+            if (m_axis_tvalid && m_axis_tready) begin
                 axis_byte_count <= axis_byte_count + 1;
             end
         end