ZStack中广播发送数据只要修改目的地址模式和短地址分别为AddrBroadcast和0xFFFF即可。 

  afAddrType_t SendDataAddr; //定义地址结构

  SendDataAddr.addr.shortAddr = 0xFFFF; //广播地址
  SendDataAddr.addrMode = (afAddrMode_t)AddrBroadcast; //广播模式
  SendDataAddr.endPoint = wsnAPP_ENDPOINT;

  byte pRfData="RfData"; //定义要发送的数据
  AF_DataRequest(  &SendDataAddr,
                      &wsnApp_epDesc,
                      wsnAPP_CLUSTERID,
                      sizeof(pRfData),
                      pRfData,
                      &wsnApp_TransID,
                      AF_DISCV_ROUTE,
                      AF_DEFAULT_RADIUS ) ;