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boards: frdm_mcxw71: Enable ADC and tests/sample

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Enable LPADC on the FRDM_MCXW71 and add overlays for tests and sample

Signed-off-by: Declan Snyder <declan.snyder@nxp.com>
This commit is contained in:
Declan Snyder 2024-10-14 16:19:31 -05:00 • committed by David Leach
commit 5f51b0acba
7 changed files with 125 additions and 0 deletions
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2
boards/nxp/frdm_mcxw71/doc/index.rst
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@ -66,6 +66,8 @@ The ``frdm_mcxw71`` board target in Zephyr currently supports the following feat
+-----------+------------+-------------------------------------+
| VREF | on-chip | regulator |
+-----------+------------+-------------------------------------+
| LPADC | on-chip | adc |
+-----------+------------+-------------------------------------+
Fetch Binary Blobs
******************

10
boards/nxp/frdm_mcxw71/frdm_mcxw71-pinctrl.dtsi
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@ -58,4 +58,14 @@
drive-strength = "low";
};
};
pinmux_lpadc0: pinmux_lpadc0 {
group0 {
pinmux = <ADC0_A6_PTD2>,
<ADC0_B6_PTD3>,
<ADC0_B5_PTD1>;
drive-strength = "low";
slew-rate = "fast";
};
};
};

6
boards/nxp/frdm_mcxw71/frdm_mcxw71.dts
View file

@ -131,3 +131,9 @@
max-bitrate = <5000000>;
};
};
&adc0 {
pinctrl-0 = <&pinmux_lpadc0>;
pinctrl-names = "default";
status = "okay";
};

1
boards/nxp/frdm_mcxw71/frdm_mcxw71.yaml
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@ -20,3 +20,4 @@ supported:
- i2c
- can
- regulator
- adc

29
samples/drivers/adc/adc_dt/boards/frdm_mcxw71.overlay Normal file
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@ -0,0 +1,29 @@
/*
* Copyright 2024 NXP
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/dt-bindings/adc/adc.h>
#include <zephyr/dt-bindings/adc/mcux-lpadc.h>
/ {
zephyr,user {
io-channels = <&adc0 0>;
};
};
&adc0 {
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0>;
zephyr,gain = "ADC_GAIN_1";
zephyr,reference = "ADC_REF_EXTERNAL1";
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,resolution = <12>;
zephyr,vref-mv = <1800>;
/* channel 2 signal 6A */
zephyr,input-positive = <MCUX_LPADC_CH2A>;
};
};

29
tests/drivers/adc/adc_api/boards/frdm_mcxw71.overlay Normal file
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@ -0,0 +1,29 @@
/*
* Copyright 2024 NXP
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/dt-bindings/adc/adc.h>
#include <zephyr/dt-bindings/adc/mcux-lpadc.h>
/ {
zephyr,user {
io-channels = <&adc0 0>;
};
};
&adc0 {
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0>;
zephyr,gain = "ADC_GAIN_1";
zephyr,reference = "ADC_REF_EXTERNAL1";
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,resolution = <12>;
zephyr,vref-mv = <1800>;
/* channel 2 signal 6A */
zephyr,input-positive = <MCUX_LPADC_CH2A>;
};
};

48
tests/drivers/regulator/voltage/boards/frdm_mcxw71.overlay Normal file
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@ -0,0 +1,48 @@
/*
* Copyright 2024 NXP
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/dt-bindings/adc/adc.h>
#include <zephyr/dt-bindings/adc/mcux-lpadc.h>
#include <zephyr/dt-bindings/regulator/nxp_vref.h>
/* To do this test, connect LPADC0 channel 6A(J4 pin 5) to VREF_OUT (J2 pin 3) */
/ {
resources: resources {
compatible = "test-regulator-voltage";
regulators = <&vref>;
tolerance-microvolt = <40000>;
set-read-delay-ms = <1>;
adc-avg-count = <10>;
io-channels = <&adc0 0>;
min-microvolt = <1000000>;
max-microvolt = <2100000>;
};
};
&vref {
regulator-initial-mode = <NXP_VREF_MODE_INTERNAL_REGULATOR>;
};
&adc0 {
#address-cells = <1>;
#size-cells = <0>;
/* In this case, the LPADC reference source cannot be set to VREFO,
* switch the reference source to VDD_ANA.
*/
voltage-ref= <0>;
channel@0 {
reg = <0>;
zephyr,gain = "ADC_GAIN_1";
zephyr,reference = "ADC_REF_EXTERNAL0";
zephyr,vref-mv = <3300>;
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,resolution = <12>;
/* the signal name is ADC0_A6 but it is still channel 2 */
zephyr,input-positive = <MCUX_LPADC_CH2A>;
};
};