diff --git a/samples/drivers/adc/adc_dt/boards/frdm_mcxn236.overlay b/samples/drivers/adc/adc_dt/boards/frdm_mcxn236.overlay new file mode 100644 index 00000000000..8fd589f9414 --- /dev/null +++ b/samples/drivers/adc/adc_dt/boards/frdm_mcxn236.overlay @@ -0,0 +1,50 @@ +/* + * Copyright 2024 NXP + * + * SPDX-License-Identifier: Apache-2.0 + */ + +#include +#include + +/ { + zephyr,user { + /* adjust channel number according to pinmux in board.dts */ + io-channels = <&lpadc0 0>, <&lpadc0 1>; + }; +}; + +&lpadc0 { + #address-cells = <1>; + #size-cells = <0>; + + /* + * To use this sample: + * LPADC0 CH1A and CH1B are set up in differential mode (B-A) + * - Connect LPADC0 CH1A signal to voltage between 0~1.8V (J4 pin 4) + * - Connect LPADC0 CH1B signal to voltage between 0~1.8V (J8 pin 11) + * LPADC0 CH2A is set up in single ended mode + * - Connect LPADC0 CH2A signal to voltage between 0~1.8V (J8 pin 12) + */ + + channel@0 { + reg = <0>; + zephyr,gain = "ADC_GAIN_1"; + zephyr,reference = "ADC_REF_EXTERNAL1"; + zephyr,vref-mv = <1800>; + zephyr,acquisition-time = ; + zephyr,resolution = <13>; + zephyr,input-positive = ; + zephyr,input-negative = ; + }; + + channel@1 { + reg = <1>; + zephyr,gain = "ADC_GAIN_1"; + zephyr,reference = "ADC_REF_EXTERNAL1"; + zephyr,vref-mv = <1800>; + zephyr,acquisition-time = ; + zephyr,resolution = <12>; + zephyr,input-positive = ; + }; +};