diff --git a/tb/shinTest/ShinTopSpiTb.v b/tb/shinTest/ShinTopSpiTb.v
index 58eda95..5e6c250 100644
--- a/tb/shinTest/ShinTopSpiTb.v
+++ b/tb/shinTest/ShinTopSpiTb.v
@@ -24,6 +24,7 @@ module ShinTopSpiTb(
     wire isResp;
 
     integer spidata_file;
+    integer c_line;
 
 ShinTop s_ShinTop_Mst(
   .clock(clock),
@@ -353,15 +354,20 @@ task spi_trans( input [15:0] saddress, input [7:0] scmd, input [12:0] slength,in
 
     @( negedge isBusy) #1000
     begin 
-      $fwrite(spidata_file, "------------%-5t------------\n", $time);
-      $fwrite(spidata_file, "dev:%d, addr:0x%02h%02h, cmd:%d, len:%d\n", sidx, txBuf[1], txBuf[0], txBuf[2], slength);
+      //$fwrite(spidata_file, "------------%5t------------\n", $time);
+      $fwrite(spidata_file, "T:%2tns \tdev:%4d, addr:0x%02h%02h, cmd:%2d, len:%4d\n", $time/1000, sidx, txBuf[1], txBuf[0], txBuf[2], slength);
       for (integer i=0; i<slength; i++) begin
         $fwrite(spidata_file, "%02h ", txBuf[i + 3]); 
+        c_line = 0;
         if ((i+1)%16 == 0) begin
           $fwrite(spidata_file, "\n");
+          c_line = 1;
         end
       end
-      $fwrite(spidata_file, "\n");
+      if (c_line == 0) begin
+        $fwrite(spidata_file, "\n");
+      end
+      c_line = 0;
     end
   end
 
@@ -417,14 +423,14 @@ initial begin
   #10000
   $fdisplay(spidata_file, "\n\n测试用例3-发送嗅探包，需要在波形文件里检查");
   begin
-    $fdisplay(spidata_file, "\t>>>嗅探前，检查链路状态寄存器");
+    $fdisplay(spidata_file, "--->>>嗅探前，检查链路状态寄存器");
     spi_trans( (16'h0140), (`SPI_READ), (5), (`IF_IDX(0)) );
     spi_trans( (16'h0140), (`SPI_READ), (5), (`IF_IDX(1)) );
     spi_trans( (16'h0140), (`SPI_READ), (5), (`IF_IDX(2)) );
     spi_trans( (16'h0140), (`SPI_READ), (5), (`IF_IDX(3)) );
     spi_trans( (16'h0140), (`SPI_READ), (5), (`IF_IDX(4)) );
 
-    $fdisplay(spidata_file, "\t>>>嗅探");
+    $fdisplay(spidata_file, "--->>>嗅探");
     //设置SM1在写入0x3地址触发enq
     txBuf[0+3] = 8'h03;
     txBuf[1+3] = 8'h00;
@@ -460,7 +466,7 @@ initial begin
   #50000
   #50000
   #50000
-  $fdisplay(spidata_file, "\t>>>嗅探后，检查链路状态寄存器");
+  $fdisplay(spidata_file, "--->>>嗅探后，检查链路状态寄存器");
   spi_trans( (16'h0140), (`SPI_READ), (5), (`IF_IDX(0)) );
   spi_trans( (16'h0140), (`SPI_READ), (5), (`IF_IDX(1)) );
   spi_trans( (16'h0140), (`SPI_READ), (5), (`IF_IDX(2)) );
@@ -472,7 +478,7 @@ initial begin
   $display("index @ %d", s_ShinTop_Mst.interface__io_cReg_timeStamp);
 
   begin
-    $fdisplay(spidata_file, "\t>>>设置顺序地址前，检查顺序地址");
+    $fdisplay(spidata_file, "--->>>设置顺序地址前，检查顺序地址");
     //spi_trans( (16'h0010), (`SPI_READ), (5), (`IF_IDX(0)) );
     spi_trans( (16'h0000), (`SPI_READ), (32), (`IF_IDX(1)) );
     spi_trans( (16'h0000), (`SPI_READ), (32), (`IF_IDX(2)) );
@@ -480,7 +486,7 @@ initial begin
     spi_trans( (16'h0000), (`SPI_READ), (32), (`IF_IDX(4)) );
 
 
-    $fdisplay(spidata_file, "\t>>>设置顺序地址");
+    $fdisplay(spidata_file, "--->>>设置顺序地址");
     //设置SM1在写入0xd地址触发enq
     txBuf[0+3] = 8'h0d;
     txBuf[1+3] = 8'h00;
@@ -524,7 +530,7 @@ initial begin
   #50000
   #50000
   #50000
-  $fdisplay(spidata_file, "\t>>>设置顺序地址后，检查顺序地址");
+  $fdisplay(spidata_file, "--->>>设置顺序地址后，检查顺序地址");
   //spi_trans( (16'h0010), (`SPI_READ), (5), (`IF_IDX(0)) );
   spi_trans( (16'h0000), (`SPI_READ), (32), (`IF_IDX(1)) );
   spi_trans( (16'h0000), (`SPI_READ), (32), (`IF_IDX(2)) );