Interrupt based temperature sensor on nrf52840 using SDK v15.0.0

Question

I have to implement temperature sensor readings continuously through interrupts instead of busy waiting example in SDK in order to notify those values over BLE to cloud. 
 I took code in below reference and compiled in SDK v15.0.0 on nrf52840. 
 https://devzone.nordicsemi.com/f/nordic-q-a/15729/nrf51822-tempeture-based-on-interrupt 
 Below is code and issue comes after running statement NRF_TEMP->TASKS_START = 1; in main function code is going to NRF_BREAKPOINT_COND; in app_error_fault_handler function. 
 What is reason and to be implemented to get it worked 
 static void temp_init(void){ 
 NRF_TEMP->INTENSET |= TEMP_INTENSET_DATARDY_Enabled; sd_nvic_SetPriority(TEMP_IRQn, APP_IRQ_PRIORITY_LOWEST); sd_nvic_EnableIRQ(TEMP_IRQn); } 
 /* Interrupt handler for TEMP data ready event */ void TEMP_IRQHandler(void){ 
 int32_t volatile temp; 
 NRF_TEMP->EVENTS_DATARDY = 0; 
 /**@note Workaround for PAN_028 rev2.0A anomaly 29 - TEMP: Stop task clears the TEMP register. */ temp = (nrf_temp_read() / 4); 
 /**@note Workaround for PAN_028 rev2.0A anomaly 30 - TEMP: Temp module analog front end does not power down when DATARDY event occurs. */ NRF_TEMP->TASKS_STOP = 1; /** Stop the temperature measurement. */ 
 ble_temps_measurement_send(&m_temps, temp);// function to send notifications } 
 int main(void) { nrf_temp_init(); 
 temp_init(); 
 // Initialisions....... 
 . 
 ...... advertising_start(); NRF_TEMP->TASKS_START = 1; /** Start the temperature measurement. */ NRF_LOG_INFO("Debug logging for UART over RTT started."); 
 for (;;) { idle_state_handle(); } 
 }

AmbystomaLabs · Answer

If you are running the SD the easiest way to get the temp is via the API. 
 static int32_t temp; 
 err_code = sd_temp_get(&temp); APP_ERROR_CHECK(err_code); 
 Though if you want precise timing driven temp measurements using an interrupt then the HTS example apparently does this using the registers and sends the data on BLE.