samples: adc: Enable ADC samples for frdm_mcxc242 board

Enable ADC samples for frdm_mcxc242 board.

Signed-off-by: Michal Smola <[email protected]>

Author: michal-smola

samples/drivers/adc/adc_dt/boards/frdm_mcxc242.conf

@@ -0,0 +1 @@
+CONFIG_ADC_MCUX_ADC16_VREF_ALTERNATE=y

samples/drivers/adc/adc_dt/boards/frdm_mcxc242.overlay

@@ -0,0 +1,26 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright 2024 NXP
+ */
+
+/ {
+	zephyr,user {
+		/* adjust channel number according to pinmux in board.dts */
+		io-channels = <&adc0 1>;
+	};
+};
+
+&adc0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@1 {
+		reg = <1>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_VDD_1";
+		zephyr,vref-mv = <3300>;
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,resolution = <12>;
+	};
+};

samples/drivers/adc/adc_dt/sample.yaml

@@ -33,6 +33,7 @@ tests:
       - longan_nano/gd32vf103/lite
       - rd_rw612_bga
       - frdm_mcxn947/mcxn947/cpu0
+      - frdm_mcxc242
       - ucans32k1sic
     integration_platforms:
       - nucleo_l073rz

samples/drivers/adc/adc_sequence/boards/frdm_mcxc242.conf

@@ -0,0 +1 @@
+CONFIG_ADC_MCUX_ADC16_VREF_ALTERNATE=y

samples/drivers/adc/adc_sequence/boards/frdm_mcxc242.overlay

@@ -0,0 +1,25 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright 2024 NXP
+ */
+
+/ {
+	aliases {
+		adc0 = &adc0;
+	};
+};
+
+&adc0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@1 {
+		reg = <1>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_VDD_1";
+		zephyr,vref-mv = <3300>;
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,resolution = <12>;
+	};
+};

samples/drivers/adc/adc_sequence/sample.yaml

@@ -12,6 +12,7 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
       - ucans32k1sic
+      - frdm_mcxc242
     integration_platforms:
       - nrf52840dk/nrf52840
     harness: console