zigbee单播、组播、广播

按照协议栈示例GenericApp中的用法：
单播有两种方式一种是绑定传输，一种是直接指定目标地址的单播传输
按照如下步骤
1.设定发送的目标地址
GenericApp_DstAddr.addrMode = (afAddrMode_t)AddrNotPresent;
GenericApp_DstAddr.endPoint = 0;
GenericApp_DstAddr.addr.shortAddr = 0;
设定发送的目标地址，这里地址模式AddrNotPresent，即按照绑定的方式进行单播，不需要指定目标地址，需要先将两个设备绑定，将两个设备绑定后即可通信
还有另外三种传送方式，如下：
enum
{
AddrNotPresent = 0,//按照绑定表进行绑定传输
AddrGroup = 1,//组播传输
Addr16Bit = 2,//指定目标网络地址进行单播传输
Addr64Bit = 3,//指定IEEE地址进行单播传输
AddrBroadcast = 15//广播传输
};
2.注册端点描述符
// Fill out the endpoint description.
GenericApp_epDesc.endPoint = GENERICAPP_ENDPOINT;
GenericApp_epDesc.task_id = &GenericApp_TaskID;
GenericApp_epDesc.simpleDesc
??????????? = (SimpleDescriptionFormat_t *)&GenericApp_SimpleDesc;
GenericApp_epDesc.latencyReq = noLatencyReqs;

// Register the endpoint description with the AF
afRegister( &GenericApp_epDesc );
3.在需要发送数据的地方，执行如下代码：
if ( AF_DataRequest( &GenericApp_DstAddr,&GenericApp_epDesc,
?????????????????????? GENERICAPP_CLUSTERID,
?????????????????????? (byte)osal_strlen( theMessageData ) + 1,
?????????????????????? (byte *)&theMessageData,
?????????????????????? &GenericApp_TransID,
?????????????????????? AF_DISCV_ROUTE,AF_DEFAULT_RADIUS ) == afStatus_SUCCESS )
{
??? // Successfully requested to be sent.
}
else
{
??? // Error occurred in request to send.
}
注意GENERICAPP_CLUSTERID必须为对方的输入cluster，且两方的简单描述符中的profileID必须一致
4.在接收设备任务循环中检测AF_INCOMING_MSG_CMD事件：
afIncomingMSGPacket_t结构的数据包进行处理
afIncomingMSGPacket_t结构如下：
typedef struct
{
osal_event_hdr_t hdr;
uint16 groupId;
uint16 clusterId;
afAddrType_t srcAddr;
byte endPoint;
byte wasBroadcast;
byte LinkQuality;
byte SecurityUse;
uint32 timestamp;
afMSGCommandFormat_t cmd;
} afIncomingMSGPacket_t;
其中afMSGCommandFormat_t结构如下：
typedef struct
{
byte?? TransSeqNumber;
uint16 DataLength;?????????????? // Number of bytes in TransData
byte *Data;
} afMSGCommandFormat_t;
提取出Data即可

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组播：

按照SampleApp实验，组播的实现需要如下步骤：
1.声明一个组对象aps_Group_t SampleApp_Group;
2.对aps_Group_t结构体赋值，示例如下：
// By default,all devices start out in Group 1
SampleApp_Group.ID = 0x0003;
osal_memcpy( SampleApp_Group.name,"Group 3",7 );
3.设定通信的目标地址，示例如下：
// Setup for the flash command's destination address - Group 1
SampleApp_Flash_DstAddr.addrMode = (afAddrMode_t)afAddrGroup;
SampleApp_Flash_DstAddr.endPoint = SAMPLEAPP_ENDPOINT;
SampleApp_Flash_DstAddr.addr.shortAddr = SAMPLEAPP_FLASH_GROUP;
4.注册端点描述符，示例如下：
// 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 );
5.在本任务里将端点加入到组中，示例如下：
aps_AddGroup( SAMPLEAPP_ENDPOINT,&SampleApp_Group );
6.按照组播地址向对方发送数据，示例如下：
if ( AF_DataRequest( &SampleApp_Periodic_DstAddr,&SampleApp_epDesc,
?????????????????????? SAMPLEAPP_PERIODIC_CLUSTERID,
?????????????????????? 1,
?????????????????????? (uint8*)&SampleAppPeriodicCounter,
?????????????????????? &SampleApp_TransID,
?????????????????????? AF_DEFAULT_RADIUS ) == afStatus_SUCCESS )
{
}
else
{
??? // Error occurred in request to send.
}
通信时候，发送设备的输出cluster设定为接收设备的输入cluster，另外profileID设定相同，即可通信
7.对数据的处理与单播的实现一样
8.若要把一个设备加入到组中的端点从组中移除，调用aps_RemoveGroup即可，示例如下：
aps_Group_t *grp;
grp = aps_FindGroup( SAMPLEAPP_ENDPOINT,SAMPLEAPP_FLASH_GROUP );
if ( grp )
{
?? // Remove from the group
?? aps_RemoveGroup( SAMPLEAPP_ENDPOINT,SAMPLEAPP_FLASH_GROUP );
}

?

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广播

按照SampleApp，执行如下步骤即可 1.声明afAddrType_t 的变量SampleApp_Periodic_DstAddr; 2.设定目标地址变量为广播地址，示例如下： SampleApp_Periodic_DstAddr.addrMode = (afAddrMode_t)AddrBroadcast; SampleApp_Periodic_DstAddr.endPoint = SAMPLEAPP_ENDPOINT; SampleApp_Periodic_DstAddr.addr.shortAddr = 0xFFFF; 3.进行数据发送，示例如下： if ( AF_DataRequest( &SampleApp_Periodic_DstAddr,?????????????????????? SAMPLEAPP_PERIODIC_CLUSTERID,?????????????????????? 1,?????????????????????? (uint8*)&SampleAppPeriodicCounter,?????????????????????? &SampleApp_TransID,?????????????????????? AF_DISCV_ROUTE,?????????????????????? AF_DEFAULT_RADIUS ) == afStatus_SUCCESS ) { } else { ??? // Error occurred in request to send. } 通信时候，发送设备的输出cluster设定为接收设备的输入cluster，另外profileID设定相同，即可通信 4.对数据的处理与单播的实现一样