An STM32F4 Bootloader over CAN Bus!

Overview

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This project uses CAN ISO-TP to do file transfer over CAN bus! Courtesy of this C library for the easy setup of ISO-TP on an MCU.

Using a simple python script, you can flash an STM32F4 based device!

Dependencies

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• Linux kernel with SocketCAN
• CAN Adapter (CANable or other)
• STM32F407VET6 MCU Target
• Python 3.7+
• A CAN bus (of course)

How to Use

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1. Build and flash your STM32F4 device with the given Bootloader Platformio project

2. Set up your CAN interface

   sudo ip link set can0 type can bitrate 1000000
   sudo ip link set can0 up

3. Install Python dependencies

   pip install python-can
   pip install can-isotp

4. Run the script!

   python linux_send_isotp.py /path/to/your/binary.bin

TODO

• Add common API for app to jump back to bootloader
• Optimize bootloader size
• Add CRC verficiation