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boards: rt-thread: art-pi2: add minimum support
- introduced a new vendor rt-threat, updated `dts/bindings/vendor-prefixes.txt` - add art-pi2 board basic support - `SMPS` macro should be defined in `stm32cube/stm32h7rsxx/soc/stm32h7r7xx.h`in hal_stm32 to enable `CONFIG_POWER_SUPPLY_DIRECT_SMPS` option Signed-off-by: Shan Pen <[email protected]>
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‎boards/rt-thread/art_pi2/Kconfig.art_pi2

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# Copyright (c) 2025 Shan Pen <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_ART_PI2
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select SOC_STM32H7R7XX

‎boards/rt-thread/art_pi2/art_pi2.dts

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/*
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* Copyright (c) 2025 Shan Pen <[email protected]>
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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/h7rs/stm32h7r7X8.dtsi>
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#include <st/h7/stm32h7r7l8hxh-pinctrl.dtsi>
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#include <zephyr/dt-bindings/input/input-event-codes.h>
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/ {
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model = "RT-Thread ART-Pi2 board";
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compatible = "rt-thread,art-pi2";
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chosen {
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zephyr,console = &uart4;
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zephyr,shell-uart = &uart4;
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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};
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leds: leds {
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compatible = "gpio-leds";
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red_led: led_1 {
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gpios = <&gpioo 1 GPIO_ACTIVE_HIGH>;
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label = "User LED1";
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};
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blue_led: led_2 {
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gpios = <&gpioo 5 GPIO_ACTIVE_LOW>;
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label = "User LED2";
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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_0 {
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label = "User";
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gpios = <&gpioc 13 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 = &red_led;
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led1 = &blue_led;
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sw0 = &user_button;
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watchdog0 = &iwdg;
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die-temp0 = &die_temp;
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volt-sensor0 = &vref;
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volt-sensor1 = &vbat;
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};
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};
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&dtcm {
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reg = <0x20000000 DT_SIZE_K(64)>;
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};
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&clk_hsi48 {
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status = "okay";
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};
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&clk_hse {
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clock-frequency = <DT_FREQ_M(24)>;
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status = "okay";
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};
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&pll {
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div-m = <12>;
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mul-n = <250>;
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div-p = <2>;
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div-q = <2>;
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div-r = <2>;
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div-s = <2>;
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div-t = <2>;
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clocks = <&clk_hse>;
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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(250)>;
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dcpre = <1>;
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hpre = <1>;
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ppre1 = <2>;
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ppre2 = <2>;
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ppre4 = <2>;
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ppre5 = <2>;
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};
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&uart4 {
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pinctrl-0 = <&uart4_tx_pd1 &uart4_rx_pd0>;
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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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&rng {
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status = "okay";
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};
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&iwdg {
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status = "okay";
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};
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&wwdg {
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status = "okay";
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};
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&die_temp {
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status = "okay";
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};
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&vref {
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status = "okay";
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};
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&vbat {
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status = "okay";
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};

‎boards/rt-thread/art_pi2/art_pi2.yaml

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identifier: art_pi2
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name: art pi2
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type: mcu
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arch: arm
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toolchain:
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- zephyr
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ram: 640
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flash: 64
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supported:
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- gpio
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- uart
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- watchdog
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- adc
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- entropy
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vendor: rt-thread

‎boards/rt-thread/art_pi2/art_pi2_defconfig

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# Copyright (c) 2025 Shan Pen <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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# Enable SMPS
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CONFIG_POWER_SUPPLY_DIRECT_SMPS=y
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# Enable MPU
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CONFIG_ARM_MPU=y
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# Enable HW stack protection
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CONFIG_HW_STACK_PROTECTION=y
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# enable uart driver
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CONFIG_SERIAL=y
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# enable console
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CONFIG_CONSOLE=y
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CONFIG_UART_CONSOLE=y
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# enable GPIO
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CONFIG_GPIO=y

‎boards/rt-thread/art_pi2/board.cmake

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# SPDX-License-Identifier: Apache-2.0
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# keep first
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board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw")
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board_runner_args(pyocd "--target=stm32h7r7l8hxh")
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board_runner_args(openocd --target-handle=_CHIPNAME.cpu0)
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# keep first
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include(${ZEPHYR_BASE}/boards/common/stm32cubeprogrammer.board.cmake)
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include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)
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include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)

‎boards/rt-thread/art_pi2/board.yml

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board:
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name: art_pi2
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full_name: ART-Pi2
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vendor: rt-thread
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socs:
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- name: stm32h7r7xx

‎boards/rt-thread/art_pi2/doc/img/art_pi2.webp

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