how to change to channel frequency on nrf51822

[Yoojin.Jang]

Hello. I test nrf51822 central and peripheral. I want to change radio channel frequency about nrf51822. I test source code as below. nRF51_SDK_10.0.0_dc26b5e\examples\ble_central\ble_app_uart_c\pca10028\s120\arm4 how to change to channel frequency?

[Hung Bui]

Hi Yoojin,

I assume that you know about the frequency hopping mechanism using a channel map that BLE using on.

To change the channel map, you can ues the option api sd_ble_opt_set and set a ble_gap_opt_ch_map_t to enable channels that you want in the channel map.

You can have a look here and here

[Yoojin.Jang]

thank you for your comment. I will confirm after modify channel map.