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STM32F407VET6 Industrial Board

I came across this board on AliExpress and naively assumed it would have some software support!
It doesn't, and worse than that it doesn't come with any schematics. So I set about working out what is connected where with a multimeter.
This repository contains a snapshot of the code generated by CubeMX, along with some tests that check each of the peripherals.

Peripherals:

  • CAN1: Working*
    • Needs HW mod (Ground not connected!)
  • CAN2: Working
  • RS485: Working
    • USART2 + GPIO for TX/#RX
  • DB9 Serial Port: Working
    • USART1
  • SD Card: Working
  • 8MB W25Q64JV Flash: Working
  • 256B AT24C02 Flash: Working
  • RTC: Working
  • Buttons: Working
  • LEDs: Working
  • USB Device: Working
  • USB Host: Working
  • Ethernet: Working*
    • Gets an IP, no further work done

STM32F407 Pinout

I have all of the on-board peripherals working. This is the pinout from the main SoC as shown in CubeMX:

HW Modification Required

The CAN transceiver for CAN1 does not have its ground pin connected.
You must make a connection from the bottom of C22 to the bottom of C21.

Building

Install the arm-none-eabi tools.

apt install gcc-arm-none-eabi
make

Flashing

The STM32F407 has built in DFU functionality.
Move the BOOT0 jumper from '0' to '1', and connect the mini USB connection to a PC.

make flash

Now move the BOOT0 jumper back to '0' and hit reset / power cycle the board.

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