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终端节点发送过来的消息，抓包软件显示校验错误，
可是协调器仍然接收到了消息然后进入了AF_INCOMING_MSG_CMD，这样前后两条消息相当于重复了，
怎么才能过滤这条错误消息不让它进入应用层，或者应用层手动去掉它
case AF_INCOMING_MSG_CMD: SampleApp_MessageMSGCB(MSGpkt); break;
