ZigBee四种绑定方式在TI Z Stack中的应用

BINDING KuangJunBin:本文是作者根据TI Z-Stack开发文档,ZigBee Specification-2007,《Zigbee Wireless Networking》等英文资料整合和翻译而成,采用中英双语对照方便读者理解,文中翻译不当之处,望广大同行不吝赐教。推广ZigBee技术,提高国内电子行业的国际影响力,是我们无线通讯工程师的愿景。本文欢迎转载,请保留作者信息和出处,作为支持我继续努力前行的动力,谢谢! E-mail:kuangjunbin@gmail.com In the Zigbee 2006 release,the binding mechanism is implemented in all devices and is called source binding. Binding allows an application to send a packet without knowing the destination address,the APS layer determines the destination address from its binding table,and then forwards the message on to the destination application(or multiple applications)or group. ZigBee2006版本中规定,在全部节点中实现绑定机制,并将其称为源绑定。绑定机制允许一个应用服务在不知道目标地址的情况下向对方(的应用服务)发送数据包。发送时使用的目标地址将由应用支持子层(APS)从绑定表中自动获得,从而能使消息顺利被目标节点的一个或多个应用服务,乃至分组接收。 Binding Table 1.Defined in RAM,but can be saved in Flash if the NV_RESTORE compiler option is used 2.Stored on source node(REFLECTOR compiler option required) 3.Entries map messages to their intended destination 4.Each entry in the binding table contains the following: typedef struct { uint16 srcIdx;//Source index uint8 srcEP;//Source endpoint uint8 dstGroupMode;//Specifies normal or group addressing uint16 dstIdx;//Destination index or group address uint8 dstEP;//Destination endpoint uint8 numClusterIds;//Number of cluster IDs in the clusterIdList below uint16 clusterIdList[MAX_BINDING_CLUSTER_IDS]; }BindingEntry_t; 绑定表 1. 绑定表存放的位置是内存中预先定义的RAM块,如果编译选项NV_RESTORE被激活,也能保存在Flash里。 2. 绑定表放置在源节点(需要激活编译选项REFLECTOR)。 3. 绑定表的条目把需要发送的消息映射到它们的目标地址上。 4. 绑定表中每个条目(entry)包括以下内容: 绑定表条目结构体的定义