boards/st/nucleo_u031r8/nucleo_u031r8.dts

/*
 * Copyright (c) 2024 STMicroelectronics
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/u0/stm32u031X8.dtsi>
#include <st/u0/stm32u031r8tx-pinctrl.dtsi>
#include "arduino_r3_connector.dtsi"
#include <zephyr/dt-bindings/input/input-event-codes.h>

/ {
	model = "STMicroelectronics STM32U83RC-NUCLEO board";
	compatible = "st,stm32u031r8-nucleo";

	#address-cells = <1>;
	#size-cells = <1>;

	chosen {
		zephyr,console = &usart2;
		zephyr,shell-uart = &usart2;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
	};

	leds: leds {
		compatible = "gpio-leds";
		green_led_1: led_1 {
			gpios = <&gpioa 5 GPIO_ACTIVE_HIGH>;
			label = "User LD4";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		user_button: button {
			label = "User";
			gpios = <&gpioc 13 GPIO_ACTIVE_HIGH>;
			zephyr,code = <INPUT_KEY_0>;
		};
	};

	aliases {
		led0 = &green_led_1;
		sw0 = &user_button;
	};
};

&usart1 {
	pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
	pinctrl-names = "default";
	current-speed = <115200>;
	status = "okay";
};

&usart2 {
	pinctrl-0 = <&usart2_tx_pa2 &usart2_rx_pa3>;
	pinctrl-names = "default";
	current-speed = <115200>;
	status = "okay";
};

&clk_hsi {
	status = "okay";
};

&pll {
	div-m = <1>;
	mul-n = <6>;
	div-p = <2>;
	div-q = <2>;
	div-r = <2>;
	clocks = <&clk_hsi>;
	status = "okay";
};

&rcc {
	clocks = <&pll>;
	clock-frequency = <DT_FREQ_M(48)>;
	ahb-prescaler = <1>;
	apb1-prescaler = <1>;
};

&dac1 {
	status = "okay";
	pinctrl-0 = <&dac1_out1_pa4>;
	pinctrl-names = "default";
};

&i2c1 {
	pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb9>;
	pinctrl-names = "default";
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
};

&i2c2 {
	pinctrl-0 = <&i2c2_scl_pa7 &i2c2_sda_pa6>;
	pinctrl-names = "default";
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
};

&adc1 {
	pinctrl-0 = <&adc1_in0_pc0 &adc1_in1_pc1>;
	pinctrl-names = "default";
	st,adc-clock-source = <SYNC>;
	st,adc-prescaler = <4>;
	status = "okay";
	vref-mv = <3300>;
};

&timers1 {
	st,prescaler = <10000>;
	status = "okay";

	pwm1: pwm {
		status = "okay";
		pinctrl-0 = <&tim1_ch1_pa8>;
		pinctrl-names = "default";
	};
};

&timers2 {
	st,prescaler = <10000>;
	status = "okay";

	pwm2: pwm {
		pinctrl-0 = <&tim2_ch1_pa5>;
		pinctrl-names = "default";
		status = "okay";
	};
};