diff --git a/src/main/scala/backBoard/shin/MstSlvSwitch.scala b/src/main/scala/backBoard/shin/MstSlvSwitch.scala
index 0a4b53c..46ea84f 100644
--- a/src/main/scala/backBoard/shin/MstSlvSwitch.scala
+++ b/src/main/scala/backBoard/shin/MstSlvSwitch.scala
@@ -506,14 +506,14 @@ trait MstSlvSwitchWatchDog{ this: MstSlvSwitchBase =>
   //看门狗17
   val wdtRec2RecCnt = RegInit(0.U(32.W))
 
-  when( interface.io.cReg.wdtEnable.extract(17) & (wdtRec2RecCnt < interface.io.cReg.wdtTarCnt(17)) ){
-    wdtRec2RecCnt := wdtRec2RecCnt + 1.U
-  } .elsewhen(
+  when(
     ~interface.io.cReg.wdtEnable.extract(17) ||
     downCDRInAxis.io.axis.fire || 
     (wdtRec2RecCnt >= interface.io.cReg.wdtTarCnt(17))
   ){
     wdtRec2RecCnt := 0.U
+  } .elsewhen( interface.io.cReg.wdtEnable.extract(17) & (wdtRec2RecCnt < interface.io.cReg.wdtTarCnt(17)) ){
+    wdtRec2RecCnt := wdtRec2RecCnt + 1.U
   }
 
   interface.io.wdtTrigger(17) := wdtRec2RecCnt === interface.io.cReg.wdtTarCnt(17)