nrf52833 not waking up on custom board

RE: nrf52833 not waking up on custom board

Olfox — Tue, 29 Sep 2020 20:41:28 GMT

And concerning uart, I have this settings, because i only log with nrf_log_info when i'm connected with Jlink.

// <i> Log data is buffered and can be processed in idle.

#ifndef NRF_LOG_DEFERRED
#define NRF_LOG_DEFERRED 0 // change from 1 to 0 to have message printing in real time

#ifndef NRF_FPRINTF_ENABLED
#define NRF_FPRINTF_ENABLED 1
#endif

#ifndef NRF_LOG_BACKEND_UART_ENABLED
#define NRF_LOG_BACKEND_UART_ENABLED 0
#endif

RE: nrf52833 not waking up on custom board

Olfox — Tue, 29 Sep 2020 20:37:58 GMT

Thanks Jorgen, i found the issue, as dev kit had button management that i removed cause no button on my board, ome gpiote init function was removed, with interrupt management too. i just had thisto solve the issue:

                err_code = nrf_drv_gpiote_init();
                APP_ERROR_CHECK(err_code);

                nrf_drv_gpiote_in_config_t in_config = GPIOTE_CONFIG_IN_SENSE_TOGGLE(true);
                in_config.pull = NRF_GPIO_PIN_NOPULL;

                err_code = nrf_drv_gpiote_in_init(30, &in_config, in_pin_handler);
                APP_ERROR_CHECK(err_code);

                nrf_drv_gpiote_in_event_enable(30, true);

RE: nrf52833 not waking up on custom board

Jørgen Holmefjord — Tue, 29 Sep 2020 16:11:01 GMT

Hi,

Do you have an external pull resistor on the wakeup pin, or is it connected to something else that is driving it?

Not sure why you have to trigger idle_state_handle twice, could be that there is some unhandled event/interrupt preventing the device from sleeping (possibly from the UART when the log message is finished transferring, if you are using the UART backend and not using deferred mode?).

If you can share the full project, it would be easier to help you look for causes of the issues you are seeing.

Best regards,
Jørgen

RE: nrf52833 not waking up on custom board

Olfox — Tue, 29 Sep 2020 13:07:56 GMT

Is there a link with an interrupt vector to enable somewhere may be ?