how can i prohibit the channel scan function?

Dears,

you need to add the following line in your f8wconfig.cfg.

-DMAX_CHANNELS_24GHZ=DEFAULT_CHANLIST

hello YiKai Chen

Is that right if i did as follow:

Yes, it is.

i have a try,i found that i add "-DMAX_CHANNELS_24GHZ=DEFAULT_CHANLIST" at end of the channel setting,that is no effect, my purpose is that the network only work on the channel 14. If i follow your guide,i found the channel 26 can also receive the beacon frame.what is wrong with my code,can you give me some advice in detail!

thank you!

Dears,

Do you rebuild all of you coordinator, router, and end device projects?

Yes,i do,i have rebuild many times.and the results are same

now i only use the setting in end devices,i use the sniffer to catch the packet sent by the end devices,because i have power down the router and the coordiantor,so the end devices only sent the beacon frame periodically.

i found that i set the default channel 14 and the max channel is default channel,the sniffer can catch the beacon frame on channel 14 and the last channel 26,the packet on the other channel can not be catched by the sniffer.

i feel confused to this phenomenon,hoping you to explain to me why caused the problem ?

thank you

i have get a screenshots of the sniffer software as shown as follow

Dears,

It is strange to have result like that. I do what I said and do not have this problem. Anyway, please check zgDefaultChannelList first in your code and see if its value the same with MAX_CHANNELS_24GHZ defined.

hi YiKai

I have a try again,i check zgDefaultChannelList in my code and the value is same as MAX_CHANNELS_24GHZ.

the  screenshots is shown as follow

Dears,

zgDefaultChannelList is also used in ZDO_StartDevice() of ZDObject.c. Please set a breakpoint on it and trace the value of zgDefaultChannelList. See what value it is at run time.

i have set a breakpoint on it and then let the chip run until the stop at this breakpoint.

In the picture above,zgDefaultChannelList is also channel 14.

I have the experiment for several times,

and the values of every experiment are all same,

Thank you very much!!!

Is your problem solved?

no, i found that channel 26 can also receive the beacon frame sent by the  end device,of course,there is only a end device is working, the enviroment of the zigbee network is very clean.If i power down the end device,on all channel,the sniffer can not receive data again,so i thought that the end device is sending beacon frame on channel 14 and 26 indeed.

i have no idea to this issue.

yes,i use  ZStack 2.5.1a for CC2530,is it necessary to do so?

Dears,

Is it necessary to do what? Do you want to use other ZStack version to have a try?

i am sorry, i make a mistake,thank you again

my purpose is that this words is used to reply in the http://e2e.ti.com/support/low_power_rf/f/158/p/236285/827869.aspx#827869

but i am not careful that  writing the reply in this post.