boards/arm/nucleo_l4a6zg/nucleo_l4a6zg.dts

/*
 * Copyright (c) 2022 Tomislav Milkovic
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/l4/stm32l4a6Xg.dtsi>
#include <st/l4/stm32l4a6zgtx-pinctrl.dtsi>
#include "arduino_r3_connector.dtsi"
#include <zephyr/dt-bindings/input/input-event-codes.h>

/ {
	model = "STMicroelectronics STM32L4A6ZG-NUCLEO board";
	compatible = "st,stm32l4a6zg-nucleo";

	chosen {
		zephyr,console = &lpuart1;
		zephyr,shell-uart = &lpuart1;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
	};

	leds: leds {
		compatible = "gpio-leds";
		green_led_1: led_1 {
			gpios = <&gpioc 7 GPIO_ACTIVE_HIGH>;
			label = "User LD1";
		};
		blue_led_2: led_2 {
			gpios = <&gpiob 7 GPIO_ACTIVE_HIGH>;
			label = "User LD2";
		};
		red_led_3: led_3 {
			gpios = <&gpiob 14 GPIO_ACTIVE_HIGH>;
			label = "User LD3";
		};
	};

	pwmleds {
		compatible = "pwm-leds";

		red_pwm_led: red_pwm_led {
			pwms = <&pwm15 1 PWM_MSEC(20) PWM_POLARITY_NORMAL>;
		};
	};

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

	aliases {
		led0 = &green_led_1;
		led1 = &blue_led_2;
		led2 = &red_led_3;
		pwm-led0 = &red_pwm_led;
		sw0 = &user_button;
		watchdog0 = &wwdg;
	};
};

&clk_lsi {
	status = "okay";
};

&clk_lse {
	status = "okay";
};

&clk_hsi {
	status = "okay";
};

&pll {
	div-m = <1>;
	mul-n = <20>;
	div-q = <2>;
	div-r = <4>;
	clocks = <&clk_hsi>;
	status = "okay";
};

&rcc {
	clocks = <&pll>;
	clock-frequency = <DT_FREQ_M(80)>;
	ahb-prescaler = <1>;
	apb1-prescaler = <1>;
	apb2-prescaler = <1>;
};

&usart3 {
	pinctrl-0 = <&usart3_tx_pd8 &usart3_rx_pd9>;
	pinctrl-names = "default";
	current-speed = <115200>;
	status = "okay";
};

&lpuart1 {
	pinctrl-0 = <&lpuart1_tx_pg7 &lpuart1_rx_pg8>;
	pinctrl-names = "default";
	current-speed = <115200>;
	status = "okay";
};

&timers15 {
	st,prescaler = <10000>;
	status = "okay";

	pwm15: pwm {
		status = "okay";
		pinctrl-0 = <&tim15_ch1_pb14>;
		pinctrl-names = "default";
	};
};

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

&spi1 {
	pinctrl-0 = <&spi1_sck_pa5 &spi1_miso_pa6 &spi1_mosi_pa7>;
	pinctrl-names = "default";
	cs-gpios = <&gpiod 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
	status = "okay";
};

&rtc {
	clocks = <&rcc STM32_CLOCK_BUS_APB1 0x10000000>,
		 <&rcc STM32_SRC_LSI RTC_SEL(2)>;
	status = "okay";
};

&wwdg {
	status = "okay";
};