zmk/app/boards/arm/bdn9/bdn9_rev2.dts

/*
 * Copyright (c) 2020 The ZMK Contributors
 *
 * SPDX-License-Identifier: MIT
 */

/dts-v1/;
#include <st/f0/stm32f072Xb.dtsi>
#include <st/f0/stm32f072c(8-b)tx-pinctrl.dtsi>
#include <dt-bindings/led/led.h>

/ {
	model = "Keeb.io BDN9 rev2";
	compatible = "keebio,bdn9", "st,stm32f072";

	chosen {
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,console = &cdc_acm_uart;
		zmk,kscan = &kscan;
		/* TODO: Enable once the GPIO bitbanging driver supports STM32
		zmk,underglow = &led_strip;
		*/
	};

	kscan: kscan {
		compatible = "zmk,kscan-gpio-direct";
		label = "KSCAN";

		input-gpios
			= <&gpiob 12 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
			, <&gpiob 5  (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
			, <&gpiob 6  (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
			, <&gpiob 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
			, <&gpiob 4  (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
			, <&gpiob 7  (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
			, <&gpioa 3  (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
			, <&gpiof 1  (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
			, <&gpiof 0  (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
			;
	};

	/*
	led_strip: ws2812 {
		compatible = "worldsemi,ws2812-gpio";
		label = "WS2812";

		in-gpios = <&gpiob 15 0>;

		chain-length = <9>;
	};
	*/

	left_encoder: encoder_left {
		compatible = "alps,ec11";
		label = "LEFT_ENCODER";
		a-gpios = <&gpioa 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		b-gpios = <&gpioa 8 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		resolution = <4>;
		status = "disabled";
	};
	mid_encoder: encoder_mid {
		compatible = "alps,ec11";
		label = "MID_ENCODER";
		a-gpios = <&gpioa 9 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		b-gpios = <&gpioa 10 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		resolution = <4>;
		status = "disabled";
	};
	right_encoder: encoder_right {
		compatible = "alps,ec11";
		label = "RIGHT_ENCODER";
		a-gpios = <&gpioa 15 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		b-gpios = <&gpiob 3 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		resolution = <4>;
		status = "disabled";
	};

	sensors: sensors {
		compatible = "zmk,keymap-sensors";
		status = "disabled";
		sensors = <>;
	};
};

&clk_hsi {
	status = "okay";
};

&pll {
	status = "okay";
	prediv = <1>;
	mul = <6>;
	clocks = <&clk_hsi>;
};

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

&usb {
	status = "okay";
	pinctrl-0 = <&usb_dm_pa11 &usb_dp_pa12>;
	pinctrl-names = "default";
	cdc_acm_uart: cdc_acm_uart {
		compatible = "zephyr,cdc-acm-uart";
		label = "CDC_ACM_0";
	};
};

&rtc {
	status = "okay";
};

&flash0 {
	/*
	 * For more information, see:
	 * http://docs.zephyrproject.org/latest/guides/dts/index.html#flash-partitions
	 */
	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		/* Set 6Kb of storage at the end of the 128Kb of flash */
		storage_partition: partition@1e800 {
			label = "storage";
			reg = <0x0001e800 0x00001800>;
		};
	};
};