diff --git a/tb/shinTest/ShinTopSpiTb.v b/tb/shinTest/ShinTopSpiTb.v
index d153edd..bb739fe 100644
--- a/tb/shinTest/ShinTopSpiTb.v
+++ b/tb/shinTest/ShinTopSpiTb.v
@@ -1117,12 +1117,14 @@ initial begin
 1. 测试 同步(sync) 和 同步输出 (sync_out)
 ---------------------------------------------------------------------------------------------------------*/
   // 同步
-  _t_start = $time;
-  #1000
 
-  $display("sync @ %d", s_ShinTop_Mst.interface__io_cReg_timeStamp);
-  $fdisplay(spidata_file, "\n\n测试用例：测试同步(sync)和同步输出(sync_out)");
   begin:SYNC_TESTCASE
+    _t_start = $time;
+    #1000
+
+    $display("sync @ %d", s_ShinTop_Mst.interface__io_cReg_timeStamp);
+    $fdisplay(spidata_file, "\n\n测试用例：测试同步(sync)和同步输出(sync_out)");
+
     //设置SM1在写入 0x18 len触发enq
     `include "sync_pkt.vh"
     `DEF_sync_pkt_sm(txBuf);