boards/arm/waveshare_open103z/waveshare_open103z.dts

/*
 * Copyright (c) 2020 Stefano Manni
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;
#include <st/f1/stm32f103Xe.dtsi>
#include <st/f1/stm32f103z(c-d-e)tx-pinctrl.dtsi>

/ {
	model = "Waveshare Open103Z";
	compatible = "waveshare,open103z";

	chosen {
		zephyr,console = &usart1;
		zephyr,shell-uart = &usart1;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,canbus = &can1;
	};

	leds {
		compatible = "gpio-leds";
		led_1: led_1 {
			gpios = <&gpiof 6 GPIO_ACTIVE_HIGH>;
			label = "User LED1";
		};
		led_2: led_2 {
			gpios = <&gpiof 7 GPIO_ACTIVE_HIGH>;
			label = "User LED2";
		};
		led_3: led_3 {
			gpios = <&gpiof 8 GPIO_ACTIVE_HIGH>;
			label = "User LED3";
		};
		led_4: led_4 {
			gpios = <&gpiof 9 GPIO_ACTIVE_HIGH>;
			label = "User LED4";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";
		button: button {
			label = "User button";
			gpios = <&gpiog 6 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
		};
		joystick_enter: joystick_enter {
			label = "User joystick ENTER";
			gpios = <&gpiog 8 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
		};
		joystick_right: joystick_right {
			label = "User joystick RIGHT";
			gpios = <&gpioc 0 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
		};
		joystick_up: joystick_up {
			label = "User joystick UP";
			gpios = <&gpioc 1 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
		};
		joystick_down: joystick_down {
			label = "User joystick DOWN";
			gpios = <&gpioc 2 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
		};
		joystick_left: joystick_left {
			label = "User joystick LEFT";
			gpios = <&gpioc 3 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
		};
	};

	aliases {
		led0 = &led_1;
		led1 = &led_2;
		led2 = &led_3;
		led3 = &led_4;
		sw0 = &button;
		watchdog0 = &iwdg;
	};
};

&clk_hse {
	clock-frequency = <DT_FREQ_M(8)>;
	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>;
	/* usbpre not set: USB clock = 72 / 1.5: 48MHz */
};

&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";
};

&spi1 {
	pinctrl-0 = <&spi1_nss_master_pa4 &spi1_sck_master_pa5
		     &spi1_miso_master_pa6 &spi1_mosi_master_pa7>;
	pinctrl-names = "default";
	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";
};

&i2c1 {
	pinctrl-0 = <&i2c1_sda_pb7 &i2c1_scl_pb6>;
	pinctrl-names = "default";
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
};

&i2c2 {
	pinctrl-0 = <&i2c2_sda_pb11 &i2c2_scl_pb10>;
	pinctrl-names = "default";
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
};

&can1 {
	pinctrl-0 = <&can_rx_remap1_pb8 &can_tx_remap1_pb9>;
	pinctrl-names = "default";
	/*
	 * make sure CAN and USB are not enabled at the same time
	 * because they share interrupts 19, 20 (stm32f103Xb.dtsi)
	 * reference: RM0008 rev20 page 205
	 */
	status = "disabled";
	bus-speed = <125000>;
};

zephyr_udc0: &usb {
	/*
	 * make sure CAN and USB are not enabled at the same time
	 * because they share interrupts 19, 20 (stm32f103Xb.dtsi)
	 * reference: RM0008 rev20 page 205
	 */
	pinctrl-0 = <&usb_dm_pa11 &usb_dp_pa12>;
	pinctrl-names = "default";
	status = "okay";
	disconnect-gpios = <&gpiog 15 GPIO_ACTIVE_HIGH>;
};

&timers1 {
	status = "okay";

	pwm1: pwm {
		status = "okay";
		pinctrl-0 = <&tim1_ch1_pwm_out_pa8>;
		pinctrl-names = "default";
	};
};

&iwdg {
	status = "okay";
};

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