1/* 2 * SPDX-License-Identifier: Apache-2.0 3 * 4 * Copyright (c) 2020 Linaro Limited 5 * Copyright 2023-2024 NXP 6 */ 7 8#include <zephyr/dt-bindings/adc/mcux-lpadc.h> 9 10/ { 11 zephyr,user { 12 /* adjust channel number according to pinmux in board.dts */ 13 io-channels = <&lpadc0 0>, <&lpadc0 1>; 14 }; 15}; 16 17&lpadc0 { 18 #address-cells = <1>; 19 #size-cells = <0>; 20 21 /* 22 * To use this sample: 23 * - Connect VREF_L to GND, and VREF_H to 1.8V (connect JP9 and JP10). 24 * - Connect LPADC0 CH0A signal to voltage between 0~1.8V (J30 pin 1) 25 * - Connect LPADC0 CH0B signal to voltage between 0~1.8V (J30 pin 2) 26 */ 27 28 channel@0 { 29 reg = <0>; 30 zephyr,gain = "ADC_GAIN_1"; 31 zephyr,reference = "ADC_REF_EXTERNAL0"; 32 zephyr,vref-mv = <1800>; 33 zephyr,acquisition-time = <ADC_ACQ_TIME(ADC_ACQ_TIME_TICKS, 7)>; 34 zephyr,resolution = <12>; 35 zephyr,input-positive = <MCUX_LPADC_CH0A>; 36 }; 37 38 channel@1 { 39 reg = <1>; 40 zephyr,gain = "ADC_GAIN_1"; 41 zephyr,reference = "ADC_REF_EXTERNAL0"; 42 zephyr,vref-mv = <1800>; 43 zephyr,acquisition-time = <ADC_ACQ_TIME(ADC_ACQ_TIME_TICKS, 7)>; 44 zephyr,resolution = <12>; 45 zephyr,input-positive = <MCUX_LPADC_CH0B>; 46 }; 47}; 48