How to handle a NRF_ERROR_SOC_MUTEX_ALREADY_TAKEN error

RE: How to handle a NRF_ERROR_SOC_MUTEX_ALREADY_TAKEN error

Amanda Hsieh — Mon, 08 Mar 2021 14:07:34 GMT

Yes. I agree with you.

-Amanda H.

RE: How to handle a NRF_ERROR_SOC_MUTEX_ALREADY_TAKEN error

brianreinhold — Mon, 08 Mar 2021 13:18:37 GMT

Amanda, my understanding is that nrf_delay_us() is nothing but a busy loop that tags the CPU. Would there be any advantage to calling a busy loop over just a while loop on the sd_mutex_acquire method itself? At least when one calls the sd_mutex_acquire method over and over again there is no unnecessary delay when the method succeeds.

RE: How to handle a NRF_ERROR_SOC_MUTEX_ALREADY_TAKEN error

Amanda Hsieh — Mon, 08 Mar 2021 12:40:10 GMT

Hi,

Wait with delay like this:

while (sd_mutex_acquire(&m_mutex) == NRF_ERROR_SOC_MUTEX_ALREADY_TAKEN)
{
nrf_delay_us(1000);
}

-Amanda H.