/**@brief Function for handling the ADC interrupt.
*
* @details This function will fetch the conversion result from the ADC, convert the value into
* percentage and send it to peer.
*/
void ADC_IRQHandler(void)
{
if (nrf_adc_conversion_finished())
{
uint8_t adc_result;
uint16_t batt_lvl_in_milli_volts;
uint8_t percentage_batt_lvl;
uint32_t err_code;
nrf_adc_conversion_event_clean();
adc_result = nrf_adc_result_get();
batt_lvl_in_milli_volts = ADC_RESULT_IN_MILLI_VOLTS(adc_result) +
DIODE_FWD_VOLT_DROP_MILLIVOLTS;
percentage_batt_lvl = battery_level_in_percent(batt_lvl_in_milli_volts);
err_code = ble_bas_battery_level_update(&m_bas, percentage_batt_lvl);
if (
(err_code != NRF_SUCCESS)
&&
(err_code != NRF_ERROR_INVALID_STATE)
&&
(err_code != BLE_ERROR_NO_TX_BUFFERS)
&&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
)
{
APP_ERROR_HANDLER(err_code);
}
}
}
/**
* @brief Blocking function for executing single ADC conversion.
*
* This function selects desired input, starts single conversion,
* waits for its finish and returns result.
* ADC is left in STOP state, given input is selected.
* This function does not check if ADC is initialized and powered.
*
* @param[in] input is requested input to be selected
*
* @return conversion result
*/
int32_t nrf_adc_convert_single(nrf_adc_config_input_t input)
{
int32_t val;
nrf_adc_input_select(input);
nrf_adc_start();
while (!nrf_adc_conversion_finished())
{
}
nrf_adc_conversion_event_clean();
val = nrf_adc_result_get();
nrf_adc_stop();
return val;
}
