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nrf52840dk_nrf52840.overlay
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nrf52840dk_nrf52840.overlay
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/*
* SPDX-License-Identifier: Apache-2.0
*
* Copyright (c) 2022 Nordic Semiconductor ASA
*/
/ {
zephyr,user {
io-channels = <&adc 0>, <&adc 1>, <&adc 7>;
};
};
&adc {
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0>;
zephyr,gain = "ADC_GAIN_1_6";
zephyr,reference = "ADC_REF_INTERNAL";
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,input-positive = <NRF_SAADC_AIN1>; /* P0.03 */
zephyr,resolution = <12>;
};
channel@1 {
reg = <1>;
zephyr,gain = "ADC_GAIN_1_6";
zephyr,reference = "ADC_REF_INTERNAL";
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,input-positive = <NRF_SAADC_VDD>;
zephyr,resolution = <14>;
zephyr,oversampling = <8>;
};
channel@7 {
reg = <7>;
zephyr,gain = "ADC_GAIN_1_5";
zephyr,reference = "ADC_REF_VDD_1_4";
zephyr,vref-mv = <750>;
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,input-positive = <NRF_SAADC_AIN6>; /* P0.30 */
zephyr,input-negative = <NRF_SAADC_AIN7>; /* P0.31 */
zephyr,resolution = <12>;
};
};