RTC

[venkatesha kj]

 #define RTC_INSTANCE   0
  nrf_drv_rtc_t  rtc = NRF_DRV_RTC_INSTANCE(RTC_INSTANCE);

  void Rtc_Handler(nrf_drv_rtc_int_type_t int_type)
  {
    if(int_type == NRF_DRV_RTC_INT_TICK)
    {
      nrf_gpio_pin_toggle(LED_1);
      
    }
  }
  //configure low frequency clock
  static void Low_freq_clk(void)
  {
    ret_code_t err_code = nrf_drv_clock_init();
    APP_ERROR_CHECK(err_code);

    nrf_drv_clock_lfclk_request(NULL);
  }

  //RTC configuration
  void Rtc_Config(void)
  {
  ret_code_t error_code;
  nrf_drv_rtc_config_t rtc_config = NRF_DRV_RTC_DEFAULT_CONFIG;
  rtc_config.prescaler = 4095;
  error_code = nrf_drv_rtc_init(&rtc,&rtc_config,Rtc_Handler);
  APP_ERROR_CHECK(error_code);
  nrfx_rtc_tick_enable(&rtc,true);
  nrf_drv_rtc_enable(&rtc);
  
  }

i am trying to toggle led with the help of rtc but  event = NRF_RTC_EVENT_TICK; was triggered initially afterwards event = NRF_RTC_EVENT_OVERFLOW; was triggered and why that overflow event was triggered?

[venkatesha kj]

i got to know that while nrfx_power_enabled was enabled rtc and watchdog timers will not work can i know the reason?

[Susheel Nuguru]

could not find a hit when i searched for nrfx_power_enabled. Where is this defined?

[venkatesha kj]

config.h

[Susheel Nuguru]

venkatesha kj said:

i got to know that while nrfx_power_enabled was enabled rtc and watchdog timers will not work can i know the reason?

I did not see that dependency anywhere that if you enable NRFX_POWER_ENABLED then RTC and watchdog will not work.  Where did you learn this from? Can you please point me to that source. I think RTC and watchdog still shouldl function with or without NRFX_POWER_ENABLED