boards/xtensa/heltec_wireless_stick_lite_v3/heltec_wireless_stick_lite_v3.dts

/*
 * Copyright (c) 2021 Instituto de Pesquisas Eldorado (eldorado.org.br)
 * Copyright (c) 2022 Espressif Systems (Shanghai) Co., Ltd.
 * Copyright (c) 2023 The Zephyr Project Contributors
 *
 * SPDX-License-Identifier: Apache-2.0
 */
/dts-v1/;

#include <espressif/esp32s3/esp32s3_fn8.dtsi>
#include "heltec_wireless_stick_lite_v3-pinctrl.dtsi"
#include <zephyr/dt-bindings/pwm/pwm.h>
#include <zephyr/dt-bindings/input/input-event-codes.h>
#include <zephyr/dt-bindings/lora/sx126x.h>

/ {
	model = "heltec_wireless_stick_lite_v3";
	compatible = "espressif,esp32s3";

	aliases {
		pwm-0 = &ledc0;
		pwm-led0 = &pwm_led_white;
		uart-0 = &uart0;
		uart-1 = &uart1;
		i2c-0 = &i2c0;
		lora0 = &lora0;
		sw0 = &button0;
		watchdog0 = &wdt0;
	};

	leds {
		compatible = "gpio-leds";

		vext: vext {
			gpios = <&gpio0 36 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "Vext Control";
		};

		adc: adc {
			gpios = <&gpio0 37 GPIO_ACTIVE_LOW>;
			label = "ADC Control";
		};
	};

	pwmleds {
		compatible = "pwm-leds";
		pwm_led_white: pwm_led_gpio0_35 {
			label = "White PWM LED";
			pwms = <&ledc0 0 PWM_MSEC(10) PWM_POLARITY_NORMAL>;
		};
	};

	buttons {
		compatible = "gpio-keys";
		button0: button_0 {
			gpios = <&gpio0 0 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "USER SW";
			zephyr,code = <INPUT_KEY_0>;
		};
	};

	vbatt {
		compatible = "voltage-divider";
		io-channels = <&adc1 0>;
		output-ohms = <100000>;
		full-ohms = <(100000 + 390000)>;
	};

	chosen {
		zephyr,sram = &sram0;
		zephyr,console = &uart0;
		zephyr,shell-uart = &uart0;
		zephyr,flash = &flash0;
		zephyr,code-partition = &slot0_partition;
	};
};

&cpu0 {
	clock-frequency = <ESP32_CLK_CPU_240M>;
};

&cpu1 {
	clock-frequency = <ESP32_CLK_CPU_240M>;
};

&adc1 {
	status ="okay";
};

&uart0 {
	status = "okay";
	current-speed = <115200>;
	pinctrl-0 = <&uart0_default>;
	pinctrl-names = "default";
};

&gpio0 {
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&ledc0 {
	pinctrl-0 = <&ledc0_default>;
	pinctrl-names = "default";
	status = "okay";
	#address-cells = <1>;
	#size-cells = <0>;
	channel0@0 {
		reg = <0x0>;
		timer = <0>;
	};
};

&i2c0 {
	clock-frequency = <I2C_BITRATE_STANDARD>;
	pinctrl-0 = <&i2c0_default>;
	pinctrl-names = "default";
};

&spi2 {
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";
	pinctrl-0 = <&spim2_default>;
	pinctrl-names = "default";
	lora0: lora@0 {
		compatible = "semtech,sx1262";
		reg = <0>;
		reset-gpios = <&gpio0 12 (GPIO_OPEN_DRAIN | GPIO_ACTIVE_LOW)>;
		busy-gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
		dio1-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
		dio2-tx-enable;
		dio3-tcxo-voltage = <SX126X_DIO3_TCXO_1V8>;
		tcxo-power-startup-delay-ms = <5>;
		spi-max-frequency = <16000000>;
	};
};

&twai {
	pinctrl-0 = <&twai_default>;
	pinctrl-names = "default";
	bus-speed = <125000>;
};

&timer0 {
	status = "okay";
};

&timer1 {
	status = "okay";
};

&timer2 {
	status = "okay";
};

&timer3 {
	status = "okay";
};

&wdt0 {
	status = "okay";
};

&trng0 {
	status = "okay";
};

&uart1 {
	status = "okay";
	current-speed = <115200>;
	pinctrl-0 = <&uart1_default>;
	pinctrl-names = "default";
};

&flash0 {
	status = "okay";
	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		/* Reserve 64kB for the bootloader */
		boot_partition: partition@0 {
			label = "mcuboot";
			reg = <0x00000000 0x00010000>;
			read-only;
		};

		/* Reserve 1024kB for the application in slot 0 */
		slot0_partition: partition@10000 {
			label = "image-0";
			reg = <0x00010000 0x00100000>;
		};

		/* Reserve 1024kB for the application in slot 1 */
		slot1_partition: partition@110000 {
			label = "image-1";
			reg = <0x00110000 0x00100000>;
		};

		/* Reserve 256kB for the scratch partition */
		scratch_partition: partition@210000 {
			   label = "image-scratch";
			   reg = <0x00210000 0x00040000>;
		};

		storage_partition: partition@250000 {
			label = "storage";
			reg = <0x00250000 0x00006000>;
		};
	};
};