How to add channel hopping in 802.15.4 example.

[Niranjan Pradhan]

Hi,

I am a beginner in nRF52840. I want to add a channel hopping feature in the 802.15.4 example.

As per my understanding of source code, we can set the channel number by defining value for the "CONFIG_TEST_CHANNEL" macro in 802_15_4_config.h file.

#define CONFIG_TEST_CHANNEL 11
#define CONFIG_TEST_CHANNEL_MASK (1 << CONFIG_TEST_CHANNEL) 

[haakonsh]

The 802.15.4 MAC layer does not specify a channel hopping feature, that means that you will have to implement that yourself. 

You can change the channel a device's radio operates on by calling nrf_802154_channel_set. Since both sides of a link need to change at the same time you need to synchronize the channel hopping sequence.