diff --git a/src/main/scala/backBoard/shin/SlaveParser.scala b/src/main/scala/backBoard/shin/SlaveParser.scala
index c319a48..ae8f5de 100644
--- a/src/main/scala/backBoard/shin/SlaveParser.scala
+++ b/src/main/scala/backBoard/shin/SlaveParser.scala
@@ -572,13 +572,16 @@ trait SlaveParserSync{ this: SlaveParserBase =>
 
   val syncCnt = Reg(UInt(4.W))
 
-  when( isSync ){
-    syncCnt := syncCnt + 1.U
-  } .otherwise{
-    syncCnt := 0.U
+  when( downRecParser.io.rec.fire ){
+    when( isSync ){
+      syncCnt := syncCnt + 1.U
+    } .otherwise{
+      syncCnt := 0.U
+    }    
   }
 
-  when( isSync ){
+
+  when( isSync & downRecParser.io.rec.fire ){
     when( syncCnt === 0.U ){
       mstTimeStamp := Cat( mstTimeStamp(63, 8), downRecParser.io.data.bits )
     } .elsewhen( syncCnt === 1.U ){
diff --git a/tb/shinTest/ShinTopTb.v b/tb/shinTest/ShinTopTb.v
index 2b6329f..dcd86d5 100644
--- a/tb/shinTest/ShinTopTb.v
+++ b/tb/shinTest/ShinTopTb.v
@@ -514,6 +514,7 @@ initial begin
   #50000
   #50000
   #50000
+  #50000
   
   begin
 
@@ -628,7 +629,21 @@ initial begin
 
 
   // 同步
-  #200000
+  #90000
+  #90000
+  #90000
+  #90000
+  #90000
+  #90000
+  #90000
+  #90000
+  #90000  
+  #90000
+  #90000
+  #90000
+  #90000
+  #90000
+
 
   begin