Change of channel mask between advertised events

[noboru]

Hi

I succeeded in changing the channel mask in the advertize_init function, but I could not change it in the middle of the function.

For example, I want to change the channel mask when a flag is raised, but I get an error.
Do I need to stop the advertisement, change the mask value and restart it?
If so, is there a way to stop the advertisement?
I have tried using sd_ble_gap_adv_stop(m_adv_handle) here, but although the build passes, it stops with an error when this function is actually executed.

[Vidar Berg]

Hi,

It's not possible to change advertising paramaters such as the channel mask while advertising, so you need to stop advertising, then re-initialize it with the new parameters before you start it again. What's the error you get you call sd_ble_gap_adv_stop()?

Best regards,

Vidar

[noboru]

Sorry ... I was able to solve it myself!
It didn't work in other functions such as events, but by running it in the main function, I was able to get the desired behavior.
Thank you very much.

[Vidar Berg]

Thanks for the update. Not sure if this is what happened here, but please note that Softdevice APIs such as sd_ble_gap_adv_stop() can only be called from an interrupt contexts with priority lower than '4' (i.e. function can be called from priority 5, 6, or 7)