133 lines
2.3 KiB
Plaintext
133 lines
2.3 KiB
Plaintext
/*
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* Copyright (c) 2024 Maxin John
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/dts-v1/;
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#include <st/l1/stm32l152Xc.dtsi>
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#include <st/l1/stm32l152r(6-8-b)tx-pinctrl.dtsi>
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#include <zephyr/dt-bindings/input/input-event-codes.h>
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/ {
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model = "STMicroelectronics STM32L152CDISCOVERY board";
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compatible = "st,stm32l1discovery";
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chosen {
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zephyr,console = &usart1;
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zephyr,shell-uart = &usart1;
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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};
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leds {
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compatible = "gpio-leds";
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green_led: ld3 {
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gpios = <&gpiob 7 GPIO_ACTIVE_HIGH>;
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label = "User LD3";
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};
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blue_led: ld4 {
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gpios = <&gpiob 6 GPIO_ACTIVE_HIGH>;
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label = "User LD4";
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};
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};
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gpio_keys {
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compatible = "gpio-keys";
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user_button: button {
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label = "User";
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gpios = <&gpioa 0 GPIO_ACTIVE_LOW>;
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zephyr,code = <INPUT_KEY_0>;
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};
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};
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aliases {
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led0 = &green_led;
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led1 = &blue_led;
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sw0 = &user_button;
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};
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};
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&clk_lsi {
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status = "okay";
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};
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&clk_hsi {
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status = "okay";
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};
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&pll {
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div = <4>;
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mul = <8>;
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/* out of the box, MCO from stlink is not enabled, unlike later discos */
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clocks = <&clk_hsi>;
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status = "okay";
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};
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&rcc {
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clocks = <&pll>;
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clock-frequency = <DT_FREQ_M(32)>;
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ahb-prescaler = <1>;
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apb1-prescaler = <1>;
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apb2-prescaler = <1>;
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};
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&usart1 {
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pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
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pinctrl-names = "default";
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current-speed = <115200>;
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status = "okay";
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};
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&usart2 {
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pinctrl-0 = <&usart2_tx_pa2 &usart2_rx_pa3>;
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pinctrl-names = "default";
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current-speed = <115200>;
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status = "okay";
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};
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&usart3 {
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pinctrl-0 = <&usart3_tx_pb10 &usart3_rx_pb11>;
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pinctrl-names = "default";
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current-speed = <115200>;
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status = "okay";
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};
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&i2c1 {
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pinctrl-0 = <&i2c1_scl_pb6 &i2c1_sda_pb7>;
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pinctrl-names = "default";
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status = "okay";
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clock-frequency = <I2C_BITRATE_FAST>;
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};
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&i2c2 {
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pinctrl-0 = <&i2c2_scl_pb10 &i2c2_sda_pb11>;
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pinctrl-names = "default";
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status = "okay";
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clock-frequency = <I2C_BITRATE_FAST>;
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};
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&spi1 {
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pinctrl-0 = <&spi1_nss_pa4 &spi1_sck_pa5
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&spi1_miso_pa6 &spi1_mosi_pa7>;
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pinctrl-names = "default";
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status = "okay";
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};
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&spi2 {
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pinctrl-0 = <&spi2_nss_pb12 &spi2_sck_pb13
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&spi2_miso_pb14 &spi2_mosi_pb15>;
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pinctrl-names = "default";
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status = "okay";
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};
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&rtc {
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clocks = <&rcc STM32_CLOCK_BUS_APB1 0x10000000>,
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<&rcc STM32_SRC_LSI RTC_SEL(2)>;
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status = "okay";
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backup_regs {
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status = "okay";
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};
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};
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