请问信道设置433MHZ，FF，8个信道都是用，collector组建网络成功，sensor req扫描scanReq.maxResults = 8;就无法入网？

sensor     发送扫描请求scanReq.maxResults = 8;就无法入网，回调无结果

scanReq.maxResults = 0; 只能扫描到信道一个信道。

user5322468：

433而言，8个信道，8个collector每个使用一个信道，不能重复使用

Felix ZF：

scanReq.maxResults = 0;/* Expecting beacon notifications */

讲这个参数设置为0时，每收到一个beacon就会来一次notification

user5322468：

回复 Felix ZF:

那这个参数为其他表示什么？每收到一个beacon就会来一次notification，这如何判断的出最“干净的信道”

Felix ZF：

回复 user5322468:

设置成0，则不会往PAN descriptors list里记录，每次收到beacon立即notify

设置成非0值，按如下执行。

When a device is ready to join a non-beacon network, it must first perform an active scan broadcasting a beacon request. After receiving the beacon request, the non-beacon PAN coordinators in the radio range of the device respond with their beacons. When the scan is complete, TI 15.4-Stack calls the registered callback of type ApiMac_scanCnfFp_t with the PAN descriptors of the beacons it has received during the scan to the device application. The device application examines the PAN descriptors and selects a coordinator.