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MCUDev DevEBox STM32F407VGT6

MicroPython board definition files for the MCUDev black STM32F407VGT6 mini dev board.

Markings: DevEBox STM32F4XX_M Ver:V2.0 SN:1810

board

You can buy one for around $13 AUD (Oct 2019) on AliExpress.

Build the firmware

Clone the board definitions to your MicroPython ports/stm32/boards folder.

cd micropython/ports/stm32/boards
git clone https://github.com/mcauser/MCUDEV_DEVEBOX_F407VGT6.git

cd ..
make BOARD=MCUDEV_DEVEBOX_F407VGT6

Flashing via DFU

This board can be flashed using DFU. To put the board in DFU mode, disconnect USB, set BOOT0 to ON by connecting pin BT0 to 3V3 and reconnect USB.

Now you can flash the board using USB with the command:

make BOARD=MCUDEV_DEVEBOX_F407VGT6 deploy

Once the upload is complete, disconnect USB, set BOOT0 to OFF by connecting pin BT0 to GND and reconnect USB.

Alternatively, you can use the MicroPython command pyb.bootloader() to get into DFU mode without needing to use the switch.

Currently, you need to unplug and replug the board in order to switch from DFU mode back to regular mode.

Accessing the board

Once built and deployed, you can access the MicroPython REPL (the Python prompt) via USB serial.

screen /dev/tty.usbmodem1422 115200
# or
screen /dev/ttyACM0 115200

Specifications

Exposed Port Pins

Peripherals

TFT/OLED (J4)

SPI Flash W25Q16 (U3)

SWD debug (J1)

USB (J5)

Micro SD (U5)

User Button (K1)

User LED (D2)

Battery (B1)

Links

Related boards

License

Licensed under the MIT License.