| /* |
| * Copyright (c) 2019 Libre Solar Technologies GmbH |
| * Copyright (c) 2020 Sparks, Circuits and Robotics SL |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /dts-v1/; |
| #include <st/l4/stm32l452Xe.dtsi> |
| #include "arduino_r3_connector.dtsi" |
| |
| / { |
| model = "STMicroelectronics STM32L452RE-NUCLEO board"; |
| compatible = "st,stm32l452re-nucleo"; |
| |
| chosen { |
| zephyr,console = &usart2; |
| zephyr,shell-uart = &usart2; |
| zephyr,sram = &sram0; |
| zephyr,flash = &flash0; |
| zephyr,canbus = &can1; |
| }; |
| |
| gpio_keys { |
| compatible = "gpio-keys"; |
| user_button: button { |
| label = "User"; |
| gpios = <&gpioc 13 GPIO_ACTIVE_LOW>; |
| }; |
| }; |
| |
| aliases { |
| sw0 = &user_button; |
| }; |
| }; |
| |
| &clk_hsi { |
| status = "okay"; |
| }; |
| |
| &pll { |
| div-m = <1>; |
| mul-n = <20>; |
| div-p = <7>; |
| 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>; |
| }; |
| |
| &usart1 { |
| pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>; |
| pinctrl-names = "default"; |
| current-speed = <115200>; |
| }; |
| |
| &usart2 { |
| pinctrl-0 = <&usart2_tx_pa2 &usart2_rx_pa3>; |
| pinctrl-names = "default"; |
| current-speed = <115200>; |
| status = "okay"; |
| }; |
| |
| &spi1 { |
| pinctrl-0 = <&spi1_sck_pa5 &spi1_miso_pa6 &spi1_mosi_pa7>; |
| pinctrl-names = "default"; |
| cs-gpios = <&gpiob 6 (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"; |
| }; |
| }; |
| |
| &can1 { |
| pinctrl-0 = <&can1_rx_pa11 &can1_tx_pa12>; |
| pinctrl-names = "default"; |
| bus-speed = <125000>; |
| status = "okay"; |
| }; |
| |
| &rtc { |
| status = "okay"; |
| }; |
| |
| &flash0 { |
| partitions { |
| compatible = "fixed-partitions"; |
| #address-cells = <1>; |
| #size-cells = <1>; |
| /* |
| * Reserve the final 16 KiB for file system partition |
| */ |
| storage_partition: partition@7c000 { |
| label = "storage"; |
| reg = <0x0007c000 0x00008000>; |
| }; |
| }; |
| }; |