diff --git a/src/main/scala/backBoard/shin/Interface.scala b/src/main/scala/backBoard/shin/Interface.scala
index 3014171..782d85c 100644
--- a/src/main/scala/backBoard/shin/Interface.scala
+++ b/src/main/scala/backBoard/shin/Interface.scala
@@ -1229,15 +1229,15 @@ trait InterfaceInterrupt{ this: InterfaceBase =>
     intHWErr(0) | //下行接收硬件错误
     intHWErr(1)   //上行接收硬件错误
 
-  when( intPulseResetCnt === intPulseWidth ){
-    intPulse := false.B
-  } .elsewhen( trigIntPulse ){
+  when( trigIntPulse ){
     intPulse := true.B
-  }
+  } .elsewhen( intPulseResetCnt === intPulseWidth ){
+    intPulse := false.B
+  } 
 
   when( trigIntPulse ){
     intPulseResetCnt := 0.U
-  } .elsewhen( (intPulseResetCnt < intPulseWidth) & (intPulse === true.B) ){
+  } .elsewhen( (intPulseResetCnt <= intPulseWidth) & (intPulse === true.B) ){
     intPulseResetCnt := intPulseResetCnt + 1.U
   }