nRF52 start advertising in timeout callback

RE: nRF52 start advertising in timeout callback

Einarh — Mon, 20 Jun 2022 06:58:51 GMT

I would recommend using Zephyr's semaphore API.

For the thread waiting you could then use k_sem_take with K_FOREVER as the timeout. This will make the thread sleep until it's signaled by the callback.

If you're using the nRF5 SDK I believe you could do something similar using the nrf_atomic API. (See this thread)

-Einar

RE: nRF52 start advertising in timeout callback

Sophisti — Fri, 17 Jun 2022 13:09:31 GMT

Thanks for the fast reply! I understand, and this seems very logical as you usually want to do as little as possible in a callback. Do you mean creating eg a global variable that is changed when the timeout is over? And how do I wait for this while consuming as little power as possible?

RE: nRF52 start advertising in timeout callback

Einarh — Fri, 17 Jun 2022 13:00:50 GMT

Hello!

I think it would be a good idea to not start advertising from within the callback, and instead use a semaphore to signal from the callback and start your advertising from another thread in your code waiting for the semaphore. Have you tried this?

Best regards,

Einar