CC2530协议栈中对外设蜂鸣器操作无响应

if ( events & SDApp_MY_EVT )

  {      

    char theMessageData[] = "hello worker.!";

    SDApp_DstAddr.addrMode = (afAddrMode_t)AddrGroup; //发送模式为组播的模式

    SDApp_DstAddr.addr.shortAddr = 0x0002; //接收模块的组编号

    // Take the first endpoint, Can be changed to search through endpoints

    SDApp_DstAddr.endPoint = SDApp_ENDPOINT ; //接收模块的端点房间号

    //SDApp_epDesc 结构体 端点描述符有源端点的信息，也是10

    if (  AF_DataRequest( &SDApp_DstAddr, &SDApp_epDesc,                 / 发送函数

                         0x0001,                             //族编号

                         (byte)osal_strlen( theMessageData ) + 1,               //发送字符串的长度

                         (byte *)&theMessageData,                   //字符串内容数组的首地址

                         &SDApp_TransID,

                         AF_DISCV_ROUTE, AF_DEFAULT_RADIUS ) == afStatus_SUCCESS )

    {

      HalLedBlink( HAL_LED_1,5,50,1000 );

    }

 else

    {

     P2SEL &= 0xef; //1110 1111

     P2DIR |= 0x10; //0001 0000

     P2_4 = 1; //在这里触发，但没有任何响应</strong></span>

     HalLedBlink( HAL_LED_2,5,50,1000 );   

    }