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boards: frdm_mcxa156: add temperature sensor support

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1. enable temperature sensor support
2. verified samples/sensor/die_temp_polling

Signed-off-by: Neil Chen <cheng.chen_1@nxp.com>
This commit is contained in:
Neil Chen 2025-07-23 16:34:21 +08:00 committed by Fabio Baltieri
parent db1abaaf67
commit a128f55b5d
3 changed files with 32 additions and 0 deletions
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1
boards/nxp/frdm_mcxa156/frdm_mcxa156.dts
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@ -25,6 +25,7 @@
mcuboot-button0 = &user_button_2; mcuboot-button0 = &user_button_2;
watchdog0 = &wwdt0; watchdog0 = &wwdt0;
ambient-temp0 = &p3t1755; ambient-temp0 = &p3t1755;
die-temp0 = &temp0;
}; };
chosen { chosen {

5
dts/arm/nxp/nxp_mcxa156.dtsi
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@ -493,6 +493,11 @@
status = "disabled"; status = "disabled";
}; };
temp0: temp0 {
compatible = "nxp,lpadc-temp40";
status = "disabled";
};
usb: usbd@400a4000 { usb: usbd@400a4000 {
compatible = "nxp,kinetis-usbd"; compatible = "nxp,kinetis-usbd";
reg = <0x400a4000 0x1000>; reg = <0x400a4000 0x1000>;

26
samples/sensor/die_temp_polling/boards/frdm_mcxa156.overlay Normal file
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@ -0,0 +1,26 @@
/*
* Copyright 2025 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/dt-bindings/adc/adc.h>
#include <zephyr/dt-bindings/adc/mcux-lpadc.h>
&lpadc0 {
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0>;
zephyr,gain = "ADC_GAIN_1";
zephyr,reference = "ADC_REF_EXTERNAL0";
zephyr,acquisition-time = <ADC_ACQ_TIME(ADC_ACQ_TIME_TICKS, 131)>;
zephyr,input-positive = <MCUX_LPADC_CH26A>;
};
};
&temp0 {
status = "okay";
io-channels = <&lpadc0 0>;
};