待数据全部返回再交出transmit权限

src/main/scala/backBoard/BackBoardMst.scala

@@ -401,9 +401,12 @@ trait BackBoardMstLVDSTransmit{ this: BackBoardMstLVDSBase =>
       }
 
     } .elsewhen( stateCur === 3.U ){
+      when( lvdsMst.io.upstream_crc_valid ){
         stateCur := 4.U
         ctrlTransmit := false.B
         interrupt    := true.B
+      }
+
     } .otherwise{
 
     }