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协议栈 关于端点的问题

Bob1
Prodigy 80 points

有几个问题想请教：

1、数据传输时，afAddrType_t 目标地址中的 endPoint ，端点，作用是什么，表示什么意思


// Fill out the endpoint description.
SampleApp_epDesc.endPoint = SAMPLEAPP_ENDPOINT;
SampleApp_epDesc.task_id = &SampleApp_TaskID;
SampleApp_epDesc.simpleDesc
= (SimpleDescriptionFormat_t *)&SampleApp_SimpleDesc;
SampleApp_epDesc.latencyReq = noLatencyReqs;

// Register the endpoint description with the AF
afRegister( &SampleApp_epDesc );

2、这里注册的描述是什么，为什么也是同一个值SAMPLEAPP_ENDPOINT

3、传输数据时这个endPoint是否重要？如果是，网络中的协调器、终端节点又该如何设定值 

  • 0
    Guru 42467 points 
    typedef struct
{
  osal_event_hdr_t hdr;     /* OSAL Message header *///OSAL消息头
  uint16 groupId;           /* Message's group ID - 0 if not set *///消息组ID
  uint16 clusterId;         /* Message's cluster ID *///消息族ID
  afAddrType_t srcAddr;     /* Source Address, if endpoint is STUBAPS_INTER_PAN_EP,
                               it's an InterPAN message *///源地址类型
  uint16 macDestAddr;       /* MAC header destination short address *///MAC物理地址
  uint8 endPoint;           /* destination endpoint */ //目的端点
  uint8 wasBroadcast;       /* TRUE if network destination was a broadcast address *///广播地址
  uint8 LinkQuality;        /* The link quality of the received data frame */ //接收数据帧的链路质量
  uint8 correlation;        /* The raw correlation value of the received data frame *///接收数据帧的未加工相关值。
  int8  rssi;               /* The received RF power in units dBm *///接收的射频功率。
  uint8 SecurityUse;        /* deprecated *///弃用
  uint32 timestamp;         /* receipt timestamp from MAC *///收到时间标记。
  afMSGCommandFormat_t cmd; /* Application Data */应用程序数据
} afIncomingMSGPacket_t;    //无线数据包格式结构体