can't read data over uart from rtc callback

[abyr]

I want to read data over uart from sensor, advertise the value go to idle mode and wake up on rtc timeout to do the same thing again.

when I try to read data over uart from rtc callback I never recieve any caracter 

 I am using nrf52840dk , sdk 15.3.0

void rtc_handler(nrf_drv_rtc_int_type_t int_type)//this has to change 
{
    if (int_type == NRF_DRV_RTC_INT_COMPARE0)
    {
        nrf_drv_rtc_counter_clear(&rtc);
        nrf_drv_rtc_cc_set(&rtc,0,COMPARE_COUNTERTIME * 8,true);
        // uart_setup_init
        //measure data over uart
        //generate msg to be advertised 
        //advertise init
        //advertise start


  } else if (int_type == NRF_DRV_RTC_INT_TICK) {
   // nrf_gpio_pin_toggle(TICK_EVENT_OUTPUT);
  }
}

NB: the commands are just to explain what the used function are doing 

and those are the same used in main to do the same work for the first time 

is there something missing that should be updated or added 

[Susheel Nuguru]

If you call the same UART sequence in the main function, are they working as you expect them? The rtc_handler is called from RTC interrupt context, so you need to design your code path considering the priorities of the context.

[abyr]

yes I have already fixed it by changing priorities thnx 

[awneil]

abyr said:

I have already fixed it

Then please verify the answer - so that people can see it's resolved: