diff --git a/src/main/scala/backBoard/shin/Interface.scala b/src/main/scala/backBoard/shin/Interface.scala
index 3a70354..5da20b6 100644
--- a/src/main/scala/backBoard/shin/Interface.scala
+++ b/src/main/scala/backBoard/shin/Interface.scala
@@ -1006,11 +1006,11 @@ trait InterfaceSystem{ this: InterfaceBase =>
   when( io.intHWTrig(0) ){
     intStatus(29) := true.B
   }
-
+  //上行接收硬件错误
   when( io.intHWTrig(1) ){
     intStatus(30) := true.B
   }
-  //上行接收硬件错误
+
 
   //写清中断
   for( i <- 0 until 8 ){
@@ -1038,9 +1038,10 @@ trait InterfaceSystem{ this: InterfaceBase =>
     (io.intMstTrig(0) & cReg.intEnable(0)) | //主站发送完成
     (io.intMstTrig(1) & cReg.intEnable(1)) | //主站接收完成
     false.B | //主站发送周期到了
-    io.wdtTrigger.reduce(_|_) | //主站接收看门狗溢出
+    (~RegNext(io.wdtTrigger.reduce(_|_), false.B) & io.wdtTrigger.reduce(_|_) & cReg.intEnable(4)) | //主站接收看门狗溢出
     (0 until 8).map{ i => io.intSlvTrig(i) & cReg.intEnable(8+i)}.reduce(_|_) | //从站SM请求
-    io.intHWTrig(0) | io.intHWTrig(1)//下行接收硬件错误
+    io.intHWTrig(0) | //下行接收硬件错误
+    io.intHWTrig(1)   //上行接收硬件错误
 
   when( intPulseResetCnt === intPulseWidth ){
     intPulse := false.B