I tried to get ADC values from my nrf52 based custom board on nrf connect app. I already made necessary changes in SAADC example program and able to get the voltage readings of the LiPo battery. My goal is to add these SAADC function in ble_app_hrs program so that simulated values of battery to be replaced with actual battery voltage/percentage. As per sample program I need to replace these lines:
static void battery_level_update(void)
{
ret_code_t err_code;
uint8_t battery_level;
//TODO:This line need to be replaced with actual function reading the battery level
battery_level = (uint8_t)sensorsim_measure(&m_battery_sim_state, &m_battery_sim_cfg);
err_code = ble_bas_battery_level_update(&m_bas, battery_level, BLE_CONN_HANDLE_ALL);
if ((err_code != NRF_SUCCESS) &&
(err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_BUSY) &&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
)
{
APP_ERROR_HANDLER(err_code);
}
}The added one-by-one the required piece of code and able to compile successfully. I passed actual battery ADC values in battery_level_update() function. The three main functions added in main section as following:
void main(void)
{
....
....
// Start execution.
NRF_LOG_INFO("Heart Rate Sensor example started.");
printf("Heart Rate Sensor example started.");
application_timers_start();
advertising_start(erase_bonds);
//Additional function calls for SAADC battery service
saadc_init();
saadc_sampling_event_init();
saadc_sampling_event_enable();
// Enter main loop.
for (;;)
{
idle_state_handle();
}
}
However, after these changes, there is no sign of advertising app in nRF Connect App.
As per my understanding, there is a conflict between app_timer, nrf_drv_timer and nrf_drv_ppi. How to resolve it so that I could get battery ADC values on app?
Please help me with good resources to understand different timers in nRF SDK and how to use them.
