nrf52805 not reaching main function

RE: nrf52805 not reaching main function

Saurav Saha — Wed, 11 Sep 2024 18:04:56 GMT

OMG. I've been struggling with this for days. This worked like a charm.

In case it helps, this is what I added to prj.conf:

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y

RE: nrf52805 not reaching main function

keto — Thu, 28 Sep 2023 22:15:05 GMT

Your are my savior!

RE: nrf52805 not reaching main function

alecamar — Mon, 18 Jul 2022 19:41:40 GMT

Found the cause/solution. I am leaving this here in case someone else has the same problem:

As of right now, any application that uses the zephyr RTOS (i.e. everything using the new SDK) requires the 32KHz clock to be supplied externally by default. The _nrf_clock_control_lf_on function, which is run on startup, waits until this clock is locked, which will never happen if you don't have it.

Therefore, just select a different input to the 32KHz clock source ("RC Oscillator" or "Synthesized from HFCLK")