boards/arm/nucleo_f103rb/nucleo_f103rb.dts

/*
 * Copyright (c) 2017 Linaro Limited
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/f1/stm32f103Xb.dtsi>
#include <st/f1/stm32f103r(8-b)tx-pinctrl.dtsi>
#include "arduino_r3_connector.dtsi"

/ {
	model = "STMicroelectronics STM32F103RB-NUCLEO board";
	compatible = "st,stm32f103rb-nucleo";

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

	leds {
		compatible = "gpio-leds";
		green_led_2: led_2 {
			gpios = <&gpioa 5 GPIO_ACTIVE_HIGH>;
			label = "User LD2";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		user_button: button {
			label = "User";
			gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
		};
	};

	aliases {
		led0 = &green_led_2;
		sw0 = &user_button;
		watchdog0 = &iwdg;
	};
};

&clk_hse {
	hse-bypass;
	clock-frequency = <DT_FREQ_M(8)>; /* STLink 8MHz clock */
	status = "okay";
};

&pll {
	mul = <9>;
	clocks = <&clk_hse>;
	status = "okay";
};

&rcc {
	clocks = <&pll>;
	clock-frequency = <DT_FREQ_M(72)>;
	ahb-prescaler = <1>;
	apb1-prescaler = <2>;
	apb2-prescaler = <1>;
};

&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";
};

&usart3 {
	pinctrl-0 = <&usart3_tx_pb10 &usart3_rx_pb11>;
	pinctrl-names = "default";
	current-speed = <115200>;
};

&i2c1 {
	pinctrl-0 = <&i2c1_scl_remap1_pb8 &i2c1_sda_remap1_pb9>;
	pinctrl-names = "default";
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
};

&spi1 {
	pinctrl-0 = <&spi1_sck_master_pa5 &spi1_miso_master_pa6 &spi1_mosi_master_pa7>;
	pinctrl-names = "default";
	cs-gpios = <&gpiob 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
	status = "okay";
};

&spi2 {
	pinctrl-0 = <&spi2_nss_master_pb12 &spi2_sck_master_pb13
		     &spi2_miso_master_pb14 &spi2_mosi_master_pb15>;
	pinctrl-names = "default";
	status = "okay";
};

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

	pwm1: pwm {
		status = "okay";
		pinctrl-0 = <&tim1_ch1_pwm_pa8>;
		pinctrl-names = "default";
	};
};

&iwdg {
	status = "okay";
};

&adc1 {
	pinctrl-0 = <&adc1_in0_pa0>;
	pinctrl-names = "default";
	status = "okay";
};

&dma1 {
	status = "okay";
};

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

		/* Set 2KB of storage at the end of 128KB flash */
		storage_partition: partition@1f800 {
			label = "storage";
			reg = <0x0001f800 DT_SIZE_K(2)>;
		};
	};
};