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Merge pull request #2161 from jepler/nrf-analog-reference

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nRF: Change analog reference voltage
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Scott Shawcroft 2019-09-17 09:41:52 -07:00 committed by GitHub
commit b5a9ed3688
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1 changed files with 3 additions and 2 deletions
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5
ports/nrf/common-hal/analogio/AnalogIn.c
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@ -67,8 +67,8 @@ uint16_t common_hal_analogio_analogin_get_value(analogio_analogin_obj_t *self) {
const nrf_saadc_channel_config_t config = {
.resistor_p = NRF_SAADC_RESISTOR_DISABLED,
.resistor_n = NRF_SAADC_RESISTOR_DISABLED,
.gain = NRF_SAADC_GAIN1_6,
.reference = NRF_SAADC_REFERENCE_INTERNAL,
.gain = NRF_SAADC_GAIN1_4,
.reference = NRF_SAADC_REFERENCE_VDD4,
.acq_time = NRF_SAADC_ACQTIME_3US,
.mode = NRF_SAADC_MODE_SINGLE_ENDED,
.burst = NRF_SAADC_BURST_DISABLED,
@ -108,5 +108,6 @@ uint16_t common_hal_analogio_analogin_get_value(analogio_analogin_obj_t *self) {
}
float common_hal_analogio_analogin_get_reference_voltage(analogio_analogin_obj_t *self) {
// The nominal VCC voltage
return 3.3f;
}