nrf 52832 SAADC without timer

RE: nrf 52832 SAADC without timer

AKV — Thu, 06 Sep 2018 12:21:51 GMT

Thank u Andre

RE: nrf 52832 SAADC without timer

Andre — Thu, 06 Sep 2018 11:34:24 GMT

Something like this. This is based on SDK 13. For SDK 15, replace nrf_drv_ with nrfx_

#include "nrf_drv_saadc.h"

void saadc_event_handler(nrf_drv_saadc_evt_t const * p_event) {
	// Do nothing, as we use blocking mode
}

int saadc_init() {
  int ret = nrf_drv_saadc_init(NULL, saadc_event_handler);
  if (ret) return ret;
  nrf_saadc_channel_config_t config =
		NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN3);
  ret = nrf_drv_saadc_channel_init(0, &config);
  return ret;
}

int saadc_measure() {
  nrf_saadc_value_t value;
  nrf_drv_saadc_sample_convert(0, &value);
  return value;
}

int main() {
  saadc_init();
  int measurement = saadc_measure();
}

RE: nrf 52832 SAADC without timer

AKV — Thu, 06 Sep 2018 11:03:35 GMT

sorry, i am beginner in this please provide example code or more details about this.

RE: nrf 52832 SAADC without timer

Andre — Thu, 06 Sep 2018 09:02:39 GMT

To work with the API without timer, you do a

nrf_drv_saadc_sample_convert(0, &adc_buf);