boards/espressif/esp32c3_rust/esp32c3_rust.dts

/*
 * Copyright (c) 2024 Espressif Systems (Shanghai) Co., Ltd.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;

#include <espressif/esp32c3/esp32c3_mini_n4.dtsi>
#include "esp32c3_rust-pinctrl.dtsi"
#include <zephyr/dt-bindings/input/input-event-codes.h>
#include <zephyr/dt-bindings/led/led.h>
#include <espressif/partitions_0x0_default.dtsi>

/ {
	model = "Espressif ESP32C3-RUST";
	compatible = "espressif,esp32c3_rust";

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

	aliases {
		led0 = &red_led_0;
		sw0 = &user_button1;
		i2c-0 = &i2c0;
		watchdog0 = &wdt0;
		led-strip = &led_strip;
	};

	gpio_keys {
		compatible = "gpio-keys";
		user_button1: button_1 {
			label = "User SW1";
			gpios = <&gpio0 9 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			zephyr,code = <INPUT_KEY_0>;
		};
	};

	leds {
		compatible = "gpio-leds";
		red_led_0: led_0 {
			gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
			label = "User LD0";
		};
	};

};

&spi2 {
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";
	pinctrl-0 = <&spim2_default>;
	pinctrl-names = "default";

	/* Workaround to support WS2812 driver */
	line-idle-low;
	status = "okay";

	led_strip: ws2812@0 {
			compatible = "worldsemi,ws2812-spi";

			/* SPI */
			reg = <0>; /* ignored, but necessary for SPI bindings */
			spi-max-frequency = <6400000>;

			/* WS2812 */
			chain-length = <1>; /* arbitrary; change at will */
			spi-cpha;
			spi-one-frame = <0xf0>; /* 11110000: 625 ns high and 625 ns low */
			spi-zero-frame = <0xc0>; /* 11000000: 312.5 ns high and 937.5 ns low */
			color-mapping = <LED_COLOR_ID_GREEN
					LED_COLOR_ID_RED
					LED_COLOR_ID_BLUE>;
	};
};

&usb_serial {
	status = "okay";
};


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

	icm42670@68 {
		compatible = "invensense,icm42670";
		reg = <0x68>;
		status = "okay";
		accel-hz = <800>;
		accel-fs = <16>;
		gyro-hz = <800>;
		gyro-fs = <2000>;
	};

	shtc3@70 {
		compatible = "sensirion,shtc3", "sensirion,shtcx";
		reg = <0x70>;
		measure-mode = "normal";
		clock-stretching;
	};
};

&trng0 {
	status = "okay";
};

&gpio0 {
	status = "okay";
};

&wdt0 {
	status = "okay";
};

&uart0 {
	status = "disabled";
};

&esp32_bt_hci {
	status = "okay";
};