MiniSTM32H743 Core Board

Board Overview

MiniSTM32H743 Core Board

Name:

mini_stm32h743

Vendor:

WeAct Studio

Architecture:

arm

SoC:

stm32h743xx

Browse board sources

Overview

The MiniSTM32H743 Core board is a compact development board equipped with an STM32H743VIT6 microcontroller. It features a variety of peripherals, including a user LED and button, a display, and external SPI and QuadSPI NOR flash memory.

Key Features

• STM32 microcontroller in LQFP100 package

• USB OTG or full-speed device

• 1 user LED

• User, boot, and reset push-buttons

• 32.768 kHz and 25MHz HSE crystal oscillators

• External NOR Flash memories: 64-Mbit Quad-SPI and 64-Mbit SPI

• Board connectors:

  • Camera (8 bit) connector

  • ST7735 TFT-LCD 160 x 80 pixels (RGB565 3-SPI)

  • microSD™ card

  • USB Type-C Connector

  • SWD header for external debugger

  • 2x 40-pin GPIO connector

More information about the board can be found on the Mini_STM32H743 website.

Hardware

The MiniSTM32H743 Core board provides the following hardware components:

• STM32H743VIT6 in LQFP100 package

• ARM 32-bit Cortex-M7 CPU with FPU

• Chrom-ART Accelerator

• Hardware JPEG Codec

• 480 MHz max CPU frequency

• VDD from 1.62 V to 3.6 V

• 2 MB Flash

• ~1 MB SRAM

• High-resolution timer (2.1 ns)

• 32-bit timers(2)

• 16-bit timers(10)

• SPI(6)

• I2C(4)

• I2S (3)

• USART(4)

• UART(4)

• USB OTG Full Speed and High Speed(1)

• USB OTG Full Speed(1)

• CAN FD(2)

• SAI(4)

• SPDIF_Rx(4)

• HDMI_CEC(1)

• Dual Mode Quad SPI(1)

• Camera Interface

• GPIO (up to 82) with external interrupt capability

• 16-bit ADC(3) with 16 channels

• 12-bit DAC with 2 channels(2)

• True Random Number Generator (RNG)

• 16-channel DMA

• LCD-TFT Controller with XGA resolution

More information about STM32H743 can be found here:

• STM32H743VI on www.st.com

• STM32H743/753 reference manual

• STM32H743VI datasheet

Supported Features

The mini_stm32h743 board supports the hardware features listed below.

on-chip / on-board

Feature integrated in the SoC / present on the board.

2 / 2

Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.

vnd,foo

Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

mini_stm32h743

/

stm32h743xx

mini_stm32h743/stm32h743xx target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M7 CPU1	arm,cortex-m7
ADC	on-chip	STM32 ADC4	st,stm32-adc
CAN	on-chip	STM32H7 series FDCAN CAN FD controller2	st,stm32h7-fdcan
Clock control	on-chip	STM32H7 RCC (Reset and Clock controller)1	st,stm32h7-rcc
	on-chip	STM32 HSE Clock1	st,stm32-hse-clock
	on-chip	STM32 HSI Clock1	st,stm32h7-hsi-clock
	on-chip	Generic fixed-rate clock provider2 1	fixed-clock
	on-chip	STM32 LSE Clock1	st,stm32-lse-clock
	on-chip	STM32H7 main PLL1 2	st,stm32h7-pll-clock
	on-chip	STM32 Clock multiplexer1	st,stm32-clock-mux
	on-chip	STM32 Microcontroller Clock Output (MCO)2	st,stm32-clock-mco
Counter	on-chip	STM32 counters12	st,stm32-counter
DAC	on-chip	STM32 family DAC1	st,stm32-dac
Display	on-chip	STM32 LCD-TFT display controller1	st,stm32-ltdc
	on-board	ST7735R/ST7735S 160x128 (max) display controller1	sitronix,st7735r
DMA	on-chip	STM32 DMA controller (V1)2	st,stm32-dma-v1
	on-chip	STM32 BDMA controller1	st,stm32-bdma
	on-chip	STM32 DMAMUX controller2	st,stm32-dmamux
Ethernet	on-chip	STM32H7 Ethernet1	st,stm32h7-ethernet
Flash controller	on-chip	STM32 Family flash controller1	st,stm32-flash-controller
	on-board	STM32 QSPI Flash controller supporting the JEDEC CFI interface1	st,stm32-qspi-nor
GPIO & Headers	on-chip	STM32 GPIO Controller11	st,stm32-gpio
	on-board	GPIO pins exposed on the DCMI camera connector used for interfacing with the OV2640, OV7670, and OV5640 camera sensors1	weact,dcmi-camera-connector
I2C	on-chip	STM32 I2C V2 controller4	st,stm32-i2c-v2
I2S	on-chip	STM32H7 I2S controller3	st,stm32h7-i2s
Input	on-board	Group of GPIO-bound input keys1	gpio-keys
Interrupt controller	on-chip	ARMv7-M NVIC (Nested Vectored Interrupt Controller)1	arm,v7m-nvic
	on-chip	STM32 External Interrupt Controller1	st,stm32-exti
LED	on-board	Group of GPIO-controlled LEDs1	gpio-leds
MDIO	on-chip	STM32 MDIO Controller1	st,stm32-mdio
Memory controller	on-chip	STM32 Battery Backed RAM1	st,stm32-bbram
	on-chip	STM32H7 Flexible Memory Controller (FMC)1	st,stm32h7-fmc
	on-chip	STM32 Flexible Memory Controller (SDRAM controller)1	st,stm32-fmc-sdram
MMC	on-chip	STM32 SDMMC Disk Access1 1	st,stm32-sdmmc
MMU / MPU	on-chip	ARMv7-M Memory Protection Unit (MPU)1	arm,armv7m-mpu
MTD	on-chip	STM32 flash memory1	st,stm32-nv-flash
	on-board	Properties supporting Zephyr spi-nor flash driver (over the Zephyr SPI API) control of serial flash memories using the standard M25P80-based command set1	jedec,spi-nor
	on-board	Fixed partitions of a flash (or other non-volatile storage) memory2	fixed-partitions
PHY	on-chip	This binding is to be used by all the usb transceivers which are built-in with USB IP1	usb-nop-xceiv
Pin control	on-chip	STM32 Pin controller1	st,stm32-pinctrl
PWM	on-chip	STM32 PWM12	st,stm32-pwm
QSPI	on-chip	STM32 QSPI Controller1	st,stm32-qspi
Reset controller	on-chip	STM32 Reset and Clock Control (RCC) Controller1	st,stm32-rcc-rctl
RNG	on-chip	STM32 Random Number Generator1	st,stm32-rng
RTC	on-chip	STM32 RTC1	st,stm32-rtc
Sensors	on-chip	STM32 family TEMP node for production calibrated sensors with two calibration temperatures1	st,stm32-temp-cal
	on-chip	STM32 VBAT1	st,stm32-vbat
	on-chip	STM32 VREF+1	st,stm32-vref
Serial controller	on-chip	STM32 USART4	st,stm32-usart
	on-chip	STM32 UART4	st,stm32-uart
	on-chip	STM32 LPUART1	st,stm32-lpuart
SMbus	on-chip	STM32 SMBus controller4	st,stm32-smbus
SPI	on-chip	STM32H7 SPI controller2 4	st,stm32h7-spi
SRAM	on-chip	Generic on-chip SRAM description1	mmio-sram
Timer	on-chip	ARMv7-M System Tick1	arm,armv7m-systick
	on-chip	STM32 timers14	st,stm32-timers
	on-chip	STM32 low-power timer (LPTIM)1	st,stm32-lptim
USB	on-chip	STM32 OTGFS controller1	st,stm32-otgfs
Video	on-chip	STM32 Digital Camera Memory Interface (DCMI)1	st,stm32-dcmi
Watchdog	on-chip	STM32 watchdog1	st,stm32-watchdog
	on-chip	STM32 system window watchdog1	st,stm32-window-watchdog

Pin Mapping

MiniSTM32H743 Core board has 5 GPIO controllers. These controllers are responsible for pin muxing, input/output, pull-up, etc.

For more details please refer to Mini_STM32H743 website.

Default Zephyr Peripheral Mapping:

The MiniSTM32H743 Core board is configured as follows

• USER_LED : PE3

• USER_PB : PC13

• SPI1 SCK/MISO/MOSI/NSS : PB3/PB4/PD7/PD6 (NOR Flash memory)

• SPI4 SCK/MOSI/NSS : PE12/PE14/PE11 (LCD)

• QuadSPI CLK/NCS/IO0/IO1/IO2/IO3 : PB2/PB6/PD11/PD12/PE2/PD13 (NOR Flash memory)

• SDMMC1 CLK/DCMD/CD/D0/D1/D2/D3 : PC12/PD2/PD4/PC8/PC9/PC10/PC11 (microSD card)

• USB DM/DP : PA11/PA12 (USB CDC ACM)

System Clock

The STM32H743VI System Clock can be driven by an internal or external oscillator, as well as by the main PLL clock. By default, the System clock is driven by the PLL clock at 240MHz. PLL clock is fed by a 25MHz high speed external clock.

Serial Port (USB CDC ACM)

The Zephyr console output is assigned to the USB CDC ACM virtual serial port. Virtual COM port interface. Default communication settings are 115200 8N1.

Programming and Debugging

The MiniSTM32H743 Core board facilitates firmware flashing via the USB DFU bootloader. This method simplifies the process of updating images, although it doesn’t provide debugging capabilities. However, the board provides header pins for the Serial Wire Debug (SWD) interface, which can be used to connect an external debugger, such as ST-Link.

Flashing

To activate the bootloader, follow these steps:

1. Press and hold the BOOT0 key.

2. While still holding the BOOT0 key, press and release the RESET key.

3. Wait for 0.5 seconds, then release the BOOT0 key.

Upon successful execution of these steps, the device will transition into bootloader mode and present itself as a USB DFU Mode device. You can program the device using the west tool or the STM32CubeProgrammer.

Flashing an application to MiniSTM32H743

Here is an example for the Hello World application.

First, put the board in bootloader mode as described above. Then build and flash the application in the usual way. Just add CONFIG_BOOT_DELAY=5000 to the configuration, so that USB CDC ACM is initialized before any text is printed, as below:

# From the root of the zephyr repository
west build -b mini_stm32h743 samples/hello_world -- -DCONFIG_BOOT_DELAY=5000
west flash

Run a serial host program to connect with your board:

$ minicom -D <tty_device> -b 115200

Then, press the RESET button, you should see the following message after few seconds:

Hello World! mini_stm32h743

Replace <tty_device> with the port where the board XIAO BLE can be found. For example, under Linux, /dev/ttyACM0.

Debugging

This current Zephyr port does not support debugging.

Testing the LEDs in the MiniSTM32H743

There is a sample that allows to test that LED on the board are working properly with Zephyr:

# From the root of the zephyr repository
west build -b mini_stm32h743 samples/basic/blinky -- -DCONFIG_BOOT_DELAY=5000
west flash

You can build and flash the examples to make sure Zephyr is running correctly on your board. The LED definitions can be found in boards/weact/mini_stm32h743/mini_stm32h743.dts.

Testing shell over USB in the MiniSTM32H743

There is a sample that allows to test shell interface over USB CDC ACM interface with Zephyr:

# From the root of the zephyr repository
west build -b mini_stm32h743 samples/subsys/shell/shell_module -- -DCONFIG_BOOT_DELAY=5000
west flash