RE: NRF52832, RTC2 and 1 second interrupt

L.B. — Tue, 18 May 2021 15:29:57 GMT

Hey, your code works! Thank you! I would have never guessed it!

Regards,

L. B.

RE: NRF52832, RTC2 and 1 second interrupt

Sigurd — Tue, 18 May 2021 12:02:45 GMT

Hi,

Looking at the code, it should be called 1 time. But for it to trigger again, you need to do something like this in the callback.

static void rtc_handler(nrf_drv_rtc_int_type_t int_type)
{
    uint32_t err_code;
    if (int_type == NRF_DRV_RTC_INT_COMPARE0)
    {
        nrf_gpio_pin_toggle(COMPARE_EVENT_OUTPUT);
       //Set compare channel to trigger interrupt after COMPARE_COUNTERTIME seconds
        err_code = nrf_drv_rtc_cc_set(&rtc,0, COMPARE_COUNTERTIME*8,true);
        nrf_drv_rtc_counter_clear(&rtc);
    }
    else if (int_type == NRF_DRV_RTC_INT_TICK)
    {
        nrf_gpio_pin_toggle(TICK_EVENT_OUTPUT);
    }
}

Depending on your application use-case, you might want to look into using app_timer instead: https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/application-timer-tutorial

RE: NRF52832, RTC2 and 1 second interrupt

Heidi — Fri, 14 May 2021 11:26:13 GMT

Hi!

Due to the holidays here in Norway we are short-staffed, so there will be some delay in your answer.

You can expect an initial answer on Tuesday.

Best regards,
Heidi