Frequency Hopping for ZigBee HA profile

It is defined by ZIGBEE_FREQ_AGILITY and default enable. You can refer to the following code in nwk_globals.h.

#if ( ZG_BUILD_RTR_TYPE )
// The Frequency Agility feature is mandatory for both 2007 and 2007 PRO.
// So, it will be ON all the time for routers.
#if !defined ( ZIGBEE_FREQ_AGILITY )
#define ZIGBEE_FREQ_AGILITY
#endif
#endif

OK YiKai Chen...

Yes, ZIGBEE_FREQ_AGILITY is already enable by default...

From pratical tests, I understand that can be defined a channel on coordinator device, and during the join process, the routers will scan the chanales and they will choose the same channel that coordinator is using. After that, devices always use the same channel.

But, what can happen when channel get busy, by other zigbee network, or by other wireless communication?
How to decide that it is necessary change the channel?
What happened on routers and end devices in this process?

Best regards
Pedro

In my experiences, I never see frequency agility happens in my tests. Even, I would have more than 50 Zigbee networks in the same channel. And, this frequency agility thing is controlled by Z-Stack and application doesn't do anything.

Ok, YK Chen...

In my experience, the frequency agility never happens too, but if this process is enable, the solution must be prepared for it, and i have to be sure too.

Because of that, i'm looking for an application note, or some document that explain how frequency agility works...

Do you know, or do you have any document, or some information that could help???

Best regards...

There is not much information about Frequency Agility implementation. You can refer to the discussions in e2e.ti.com/.../73463.

OK,

Thanks YK Chen.

You are welcome.