| /* |
| * Copyright (c) 2021 Guðni Már Gilbert |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /dts-v1/; |
| #include <st/l4/stm32l412XB.dtsi> |
| #include <st/l4/stm32l412rbtx-pinctrl.dtsi> |
| #include "arduino_r3_connector.dtsi" |
| #include <zephyr/dt-bindings/input/input-event-codes.h> |
| |
| / { |
| model = "STMicroelectronics STM32L412RB-P-NUCLEO board"; |
| compatible = "st,stm32l412rb-p-nucleo"; |
| |
| chosen { |
| zephyr,console = &lpuart1; |
| zephyr,shell-uart = &lpuart1; |
| zephyr,sram = &sram0; |
| zephyr,flash = &flash0; |
| }; |
| |
| leds: leds { |
| compatible = "gpio-leds"; |
| green_led: led_0 { |
| gpios = <&gpiob 13 GPIO_ACTIVE_HIGH>; |
| label = "User LD4"; |
| }; |
| }; |
| |
| gpio_keys { |
| compatible = "gpio-keys"; |
| user_button: button { |
| label = "User"; |
| gpios = <&gpioc 13 GPIO_ACTIVE_LOW>; |
| zephyr,code = <INPUT_KEY_0>; |
| }; |
| }; |
| |
| aliases { |
| led0 = &green_led; |
| sw0 = &user_button; |
| volt-sensor0 = &vref; |
| volt-sensor1 = &vbat; |
| }; |
| }; |
| |
| &clk_lsi { |
| status = "okay"; |
| }; |
| |
| &clk_hsi { |
| status = "okay"; |
| }; |
| |
| &pll { |
| div-m = <1>; |
| mul-n = <10>; |
| div-q = <2>; |
| div-r = <2>; |
| clocks = <&clk_hsi>; |
| status = "okay"; |
| }; |
| |
| &rcc { |
| clocks = <&pll>; |
| clock-frequency = <DT_FREQ_M(80)>; |
| ahb-prescaler = <1>; |
| apb1-prescaler = <1>; |
| apb2-prescaler = <1>; |
| }; |
| |
| &lpuart1 { |
| pinctrl-0 = <&lpuart1_tx_pa2 &lpuart1_rx_pa3>; |
| pinctrl-names = "default"; |
| current-speed = <115200>; |
| status = "okay"; |
| }; |
| |
| &usart1 { |
| pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>; |
| pinctrl-names = "default"; |
| current-speed = <115200>; |
| }; |
| |
| &spi2 { |
| pinctrl-0 = <&spi2_sck_pb13 &spi2_miso_pb14 &spi2_mosi_pb15>; |
| pinctrl-names = "default"; |
| cs-gpios = <&gpioa 11 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; |
| status = "okay"; |
| }; |
| |
| &i2c1 { |
| pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb7>; |
| pinctrl-names = "default"; |
| clock-frequency = <I2C_BITRATE_FAST>; |
| status = "okay"; |
| }; |
| |
| &timers2 { |
| status = "okay"; |
| |
| pwm2: pwm { |
| status = "okay"; |
| pinctrl-0 = <&tim2_ch1_pa0>; |
| pinctrl-names = "default"; |
| }; |
| }; |
| |
| &rtc { |
| clocks = <&rcc STM32_CLOCK_BUS_APB1 0x10000000>, |
| <&rcc STM32_SRC_LSI RTC_SEL(2)>; |
| status = "okay"; |
| }; |
| |
| &adc1 { |
| pinctrl-0 = <&adc1_in5_pa0>; |
| pinctrl-names = "default"; |
| st,adc-clock-source = <SYNC>; |
| st,adc-prescaler = <4>; |
| status = "okay"; |
| }; |
| |
| &flash0 { |
| partitions { |
| compatible = "fixed-partitions"; |
| #address-cells = <1>; |
| #size-cells = <1>; |
| |
| /* |
| * Reserve the final 16 KiB for file system partition |
| * 128 KiB --> 131702 bytes |
| * 16 KiB --> 16384 bytes |
| * Start Addr = 131702 - 16384 --> (HEX) 0x0001c276 |
| * Size = 16384 --> (HEX) 0x00004000 |
| */ |
| storage_partition: partition@1c276 { |
| label = "storage"; |
| reg = <0x0001c276 DT_SIZE_K(16)>; |
| }; |
| }; |
| }; |
| |
| &vref { |
| status = "okay"; |
| }; |
| |
| &vbat { |
| status = "okay"; |
| }; |