Add b-parasite with nRF52833 board definition

code/nrf-connect/prstlib/boards/arm/bparasite_nrf52833/Kconfig

@@ -0,0 +1,9 @@
+
+if BOARD_BPARASITE_NRF52833
+
+config BOARD_ENABLE_DCDC
+	bool "DCDC mode"
+	select SOC_DCDC_NRF52X
+	default y
+
+endif  # BOARD_BPARASITE_NRF52833

code/nrf-connect/prstlib/boards/arm/bparasite_nrf52833/Kconfig.board

@@ -0,0 +1,4 @@
+
+config BOARD_BPARASITE_NRF52833
+	bool "b-parasite nRF52833 board"
+	depends on SOC_NRF52833_QIAA

code/nrf-connect/prstlib/boards/arm/bparasite_nrf52833/Kconfig.defconfig

@@ -0,0 +1,10 @@
+
+if BOARD_BPARASITE_NRF52833
+
+config BOARD
+	default "bparasite_nrf52833"
+
+config BT_CTLR
+	default BT
+
+endif  # BOARD_BPARASITE_NRF52833

code/nrf-connect/prstlib/boards/arm/bparasite_nrf52833/board.cmake

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(jlink "--device=nRF52833_xxAA" "--speed=4000")
+board_runner_args(pyocd "--target=nrf52833" "--frequency=4000000")
+# set(OPENOCD_NRF5_SUBFAMILY "nrf52")
+include(${ZEPHYR_BASE}/boards/common/nrfjprog.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/openocd-nrf5.board.cmake)

code/nrf-connect/prstlib/boards/arm/bparasite_nrf52833/bparasite_nrf52833-pinctrl.dtsi

@@ -0,0 +1,48 @@
+
+&pinctrl {
+	uart0_default: uart0_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 0, 25)>,
+							<NRF_PSEL(UART_RX, 0, 23)>;
+		};
+	};
+
+	uart0_sleep: uart0_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 0, 25)>,
+							<NRF_PSEL(UART_RX, 0, 23)>;
+			low-power-enable;
+		};
+	};
+
+	/* Configure pwm0 instance to use pin 5. */
+	pwm0_default: pwm0_default {
+		group1 {
+			psels = <NRF_PSEL(PWM_OUT0, 0, 5)>;
+			nordic,invert;
+		};
+	};
+
+	pwm0_sleep: pwm0_sleep {
+		group1 {
+			psels = <NRF_PSEL(PWM_OUT0, 0, 5)>;
+			low-power-enable;
+		};
+	};
+
+	/* Configure i2c0 instance to use pins 24 (SDA) & 13 (SCL). */
+	i2c0_default: i2c0_default {
+		group1 {
+			psels = <NRF_PSEL(TWIM_SDA, 0, 24)>,
+							<NRF_PSEL(TWIM_SCL, 0, 13)>;
+		};
+	};
+
+	i2c0_sleep: i2c0_sleep {
+		group1 {
+			psels = <NRF_PSEL(TWIM_SDA, 0, 24)>,
+							<NRF_PSEL(TWIM_SCL, 0, 13)>;
+			low-power-enable;
+		};
+	};
+};

code/nrf-connect/prstlib/boards/arm/bparasite_nrf52833/bparasite_nrf52833.dts

@@ -0,0 +1,172 @@
+/dts-v1/;
+#include <nordic/nrf52833_qiaa.dtsi>
+#include "bparasite_nrf52833-pinctrl.dtsi"
+
+/ {
+	model = "A soil moisture sensor based on Nordic's nRF52833";
+	compatible = "rbaron,bparasite_nrf52833";
+
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+	};
+
+	zephyr,user {
+		io-channels = <&adc 0>, <&adc 1>, <&adc 2>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led0: led_0 {
+			// P0.28.
+			gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	buttons {
+		compatible = "gpio-keys";
+		button0: button_0 {
+			// P0.12.
+			gpios = <&gpio0 12 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 0";
+		};
+	};
+
+	soil_pwm: soil_pwm {
+		compatible = "pwm-fixed";
+		pwms = <&pwm0 0 PWM_USEC(2) PWM_POLARITY_NORMAL>;
+		pulse = <PWM_USEC(1)>;
+	};
+
+	ctrl {
+		compatible = "gpio-keys";
+		fast_disch: fast_disch {
+			// P0.25.
+			gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+			label = "Fast discharge circuitry";
+		};
+	};
+};
+
+&gpiote {
+	status = "okay";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&uart0 {
+	compatible = "nordic,nrf-uart";
+	status = "disabled";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart0_default>;
+	pinctrl-1 = <&uart0_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+&i2c0 {
+	compatible = "nordic,nrf-twi";
+	status = "okay";
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-1 = <&i2c0_sleep>;
+	pinctrl-names = "default", "sleep";
+
+	shtc3: shtc3@70 {
+		compatible = "i2c-device";
+		reg = <0x70>;
+		label = "SHTC3";
+	};
+};
+
+&pwm0 {
+	status = "okay";
+	pinctrl-0 = <&pwm0_default>;
+	pinctrl-1 = <&pwm0_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+&adc {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "ok";
+
+	// Soil.
+	channel@0 {
+		reg = <0>;
+		zephyr,gain = "ADC_GAIN_1_6";
+		zephyr,reference = "ADC_REF_VDD_1_4";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		// P0.03.
+		zephyr,input-positive = <NRF_SAADC_AIN1>;
+		zephyr,resolution = <10>;
+
+	};
+
+	// Photo.
+	channel@1 {
+		reg = <1>;
+		zephyr,gain = "ADC_GAIN_1_6";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		// P0.02.
+		zephyr,input-positive = <NRF_SAADC_AIN0>;
+		zephyr,resolution = <10>;
+	};
+
+	// Battery.
+	channel@2 {
+		reg = <2>;
+		zephyr,gain = "ADC_GAIN_1_6";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,input-positive = <NRF_SAADC_VDD>;
+		zephyr,resolution = <10>;
+	};
+};
+
+
+&flash0 {
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x0000C000>;
+		};
+		slot0_partition: partition@c000 {
+			label = "image-0";
+			reg = <0x0000C000 0x00067000>;
+		};
+		slot1_partition: partition@73000 {
+			label = "image-1";
+			reg = <0x00073000 0x00067000>;
+		};
+		scratch_partition: partition@da000 {
+			label = "image-scratch";
+			reg = <0x000da000 0x0001e000>;
+		};
+
+		/*
+		 * The flash starting at 0x000f8000 and ending at
+		 * 0x000fffff is reserved for use by the application.
+		 */
+
+		/*
+		 * Storage partition will be used by FCB/LittleFS/NVS
+		 * if enabled.
+		 */
+		storage_partition: partition@f8000 {
+			label = "storage";
+			reg = <0x000f8000 0x00008000>;
+		};
+	};
+};

code/nrf-connect/prstlib/boards/arm/bparasite_nrf52833/bparasite_nrf52833_defconfig

@@ -0,0 +1,21 @@
+
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52833_QIAA=y
+CONFIG_BOARD_BPARASITE_NRF52833=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# Enable RTT
+CONFIG_USE_SEGGER_RTT=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+# enable console
+CONFIG_CONSOLE=y
+CONFIG_RTT_CONSOLE=y
+
+CONFIG_GPIO_AS_PINRESET=y
+
+CONFIG_PINCTRL=y

code/nrf-connect/prstlib/boards/arm/bparasite_nrf52833/pre_dt_board.cmake

@@ -0,0 +1,7 @@
+# Copyright (c) 2022 Nordic Semiconductor
+# SPDX-License-Identifier: Apache-2.0
+
+# Suppress "unique_unit_address_if_enabled" to handle the following overlaps:
+# - power@40000000 & clock@40000000 & bprot@40000000
+# - acl@4001e000 & flash-controller@4001e000
+list(APPEND EXTRA_DTC_FLAGS "-Wno-unique_unit_address_if_enabled")