Changing TX power with radio notificaiton (nrf52833) S140

[Stratosphere]

Hi,

We are developing a solution with our partner company based on nrf52833 using S140 softdevice.

I would like to change the advertisement power after every advertisement and also update the adveritsment data with the current power level.

Radio notifications seemed to be the best way to do this either before or after each advertisement. I am able to change the advertisement data in radio notification but changing advertisement Power in radio notification always results in hard fault.

We have to do this without RTOS for this application.

Please sugges a possible solution for this.

Thanks

Noamna

[Ole Morten]

Softdevice functions can only be called from interrupt priorities below 4 (e.g. with higher number), as per this section in the SDS. By default, the radio notification event should run on level 6, so it should be fine to call softdevice functions, but the priority level of the notifications can be changed when initializing the ble_radio_notification module. Have you perhaps increased the priority (to 4 or lower), and hence caused this to fail?

[Stratosphere]

Hi Ole,

Thanks for your reply. Setting priority to 6 worked.

I had based my code on this tutorial which uses priority 3 : https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/radio-notification