看z-stack develop guide.pdf
9.1 Configuring channel
Every device must have a DEFAULT_CHANLIST (in f8wConfig.cfg) that controls the channel selection. For a ZigBee Coordinator, this list will be used to scan for a channel with the least amount of noise. For ZigBee Routers and End Devices, this list will be used to scan for existing networks to join.
实操如下：
