First commit

boards/Mi_labs/phf000_board/Kconfig.phf000_board

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+config BOARD_PHF000_BOARD
+	select SOC_NRF52833_QDAA

boards/Mi_labs/phf000_board/board.cmake

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+board_runner_args(jlink "--device=nRF52833_xxAA" "--speed=4000")
+
+set(OPENOCD_NRF5_SUBFAMILY "nrf52")
+board_runner_args(pyocd "--target=nrf52833" "--frequency=4000000")
+
+include(${ZEPHYR_BASE}/boards/common/nrfjprog.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/nrfutil.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/openocd-nrf5.board.cmake)

boards/Mi_labs/phf000_board/board.yml

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+board:
+  name: phf000_board
+  vendor: Mi_labs
+  socs:
+    - name: nrf52833

boards/Mi_labs/phf000_board/phf000_board-pinctrl.dtsi

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+&pinctrl {
+};

boards/Mi_labs/phf000_board/phf000_board.dts

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+/*
+ * Copyright (c) 2019 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <nordic/nrf52833_qdaa.dtsi>
+#include "phf000_board-pinctrl.dtsi"
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+/ {
+	model = "PHF000 RA Board";
+	compatible = "arm,phf000_board";
+
+	chosen {
+		zephyr,console = &cdc_acm_uart0;
+		zephyr,udc = &usbd;
+		zephyr,shell-uart = &uart0;
+		zephyr,uart-mcumgr = &uart0;
+		zephyr,bt-mon-uart = &uart0;
+		zephyr,bt-c2h-uart = &uart0;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+		zephyr,ieee802154 = &ieee802154;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led0: led_0 {
+			gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
+			label = "Red LED 0";
+		};
+		led1: led_1 {
+			gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+			label = "Green LED 1";
+		};
+	};
+
+	buttons {
+		compatible = "gpio-keys";
+		button0: button_0 {
+			gpios = <&gpio0 28 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+			label = "Push button switch 0";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
+
+	/* These aliases are provided for compatibility with samples */
+	aliases {
+		led0 = &led0;
+		led1 = &led1;
+		sw0 = &button0;
+		bootloader-led0 = &led0;
+		mcuboot-button0 = &button0;
+		mcuboot-led0 = &led0;
+		watchdog0 = &wdt0;
+	};
+
+	zephyr,user {
+		hum_en-gpios = <&gpio0 2 0>;
+		do2-gpios = <&gpio0 3 (1 << 9)>;
+		do_en-gpios = <&gpio0 9 0>;
+		do1-gpios = <&gpio0 10 0>;
+		btt_meas_en-gpios = <&gpio0 29 0>;
+		io-channels = <&adc 6>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+	};
+};
+
+&reg1 {
+	regulator-initial-mode = <NRF5X_REG_MODE_LDO>;
+	status = "okay";
+	compatible = "nordic,nrf5x-regulator";
+};
+
+&adc {
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	channel@6 {
+		reg = <6>;
+		zephyr,gain = "ADC_GAIN_1_6";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		//zephyr,vref-mv = <750>;
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_AIN6>;
+		//zephyr,acquisition-time = <ADC_ACQ_TIME(ADC_ACQ_TIME_MICROSECONDS, 200)>;
+		zephyr,resolution = <12>;
+	};
+};
+
+&uicr {
+	gpio-as-nreset;
+	nfct-pins-as-gpios;
+};
+
+&gpiote {
+	status = "okay";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&flash0 {
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0xC000>;
+		};
+		slot0_partition: partition@c000 {
+			label = "image-0";
+			reg = <0x0000C000 0x37000>;
+		};
+		slot1_partition: partition@43000 {
+			label = "image-1";
+			reg = <0x00043000 0x37000>;
+		};
+		storage_partition: partition@7a000 {
+			label = "storage";
+			reg = <0x0007A000 0x00006000>;
+		};
+	};
+};
+
+zephyr_udc0: &usbd { 
+	compatible = "nordic,nrf-usbd"; 
+	status = "okay"; 
+	cdc_acm_uart0: cdc_acm_uart0 { 
+		compatible = "zephyr,cdc-acm-uart"; 
+	}; 
+};
+
+&reg0 {
+	status = "okay";
+};
+
+&power {
+	status = "okay";
+};
+&temp {
+    compatible = "nordic,nrf-temp";
+    status = "okay";
+};

boards/Mi_labs/phf000_board/phf000_board.yml

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+identifier: phf000_board/nrf52833
+name: Board for PHF, Rev A
+vendor: Mi_labs
+type: mcu
+arch: arm
+ram: 128
+flash: 512
+toolchain:
+  - zephyr
+supported: []

boards/Mi_labs/phf000_board/phf000_board_defconfig

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+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_PINCTRL=y
+
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# Enable hardware stack protection
+CONFIG_HW_STACK_PROTECTION=y
+
+# Enable RTT
+CONFIG_USE_SEGGER_RTT=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+# enable uart driver
+CONFIG_SERIAL=y
+
+# enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+CONFIG_USB_DEVICE_STACK=y
+CONFIG_USB_CDC_ACM=y
+CONFIG_USB_DEVICE_PRODUCT="Zephyr USB console sample"
+CONFIG_USB_DEVICE_VID=0x2FE3
+CONFIG_USB_DEVICE_PID=0x0004
+CONFIG_USB_DEVICE_INITIALIZE_AT_BOOT=n
+
+CONFIG_ADC=y
+
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=n
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y
+
+CONFIG_SENSOR=y
+CONFIG_MULTITHREADING=y
+CONFIG_NRFX_TEMP=y

boards/Mi_labs/phf000_board/pre_dt_board.cmake

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+# Suppress "unique_unit_address_if_enabled" to handle some overlaps
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")