BUS FAULT happened, when try the ADC on nrf52832 board with adc_read_async in zephyr

RE: BUS FAULT happened, when try the ADC on nrf52832 board with adc_read_async in zephyr

Jeremy.jiang — Tue, 20 Aug 2019 02:36:15 GMT

Hi Hakon,

I have found the root cause: need init the k_poll_signal before it was used in the k_poll_event array.

k_poll_signal_init(&async_sig);
struct k_poll_event async_evt = K_POLL_EVENT_INITIALIZER(K_POLL_TYPE_SIGNAL, K_POLL_MODE_NOTIFY_ONLY, &async_sig);

I ported these demo code from the surce file test_adc.c from the zephyr master branch, so there is a bug in that test file.

RE: BUS FAULT happened, when try the ADC on nrf52832 board with adc_read_async in zephyr

Jeremy.jiang — Fri, 16 Aug 2019 07:51:53 GMT

Hi Hakon,

Sorry for the later reply. I have used the overlay file nrf52_pca10040.overlay with the following content:

&adc {
status ="ok";
};

RE: BUS FAULT happened, when try the ADC on nrf52832 board with adc_read_async in zephyr

Hakon — Wed, 07 Aug 2019 13:07:09 GMT

Hey,

do you use an overlay file in your project?