diff --git a/src/main/scala/backBoard/shin/SlaveParser.scala b/src/main/scala/backBoard/shin/SlaveParser.scala
index 73d0653..6232f43 100644
--- a/src/main/scala/backBoard/shin/SlaveParser.scala
+++ b/src/main/scala/backBoard/shin/SlaveParser.scala
@@ -376,6 +376,7 @@ trait SlaveParserIndex{ this: SlaveParserBase =>
     localDevIndex := downRecParser.io.subMsgReq.bits.workCnt + 1.U
     isDevOnLeftModify  := false.B
     indexOfLeftDev     := downRecParser.io.subMsgReq.bits.workCnt
+    indexOfRightDev    := Mux(isLastDevice, 0.U, downRecParser.io.subMsgReq.bits.workCnt + 2.U)
 
     isDevOnRightModify := false.B
     when( isDownRecPing ){
@@ -384,6 +385,10 @@ trait SlaveParserIndex{ this: SlaveParserBase =>
       downSubMsgInfo(1).workCnt := downRecParser.io.subMsgReq.bits.workCnt + 1.U
     }
   }
+
+
+  //上行接收 获取右侧索引号
+
 }