StmDfuUsb

• Category : Tools
• Version : 1.25
• Size : 2.6 MB
• Developer : Yaroslav Trymbach
• Update : Jul 07,2022

Updating Firmware of STM32 CPU via USB Cable Using USB DFU Protocol

Application Overview

This application facilitates firmware updates for STM32 CPUs via USB cable using the USB DFU protocol. Its implementation is based on documentation from STMicroelectronics:

• AN2606: STM32 Microcontroller System Memory Boot Mode
• AN3156: USB DFU Protocol Used in the STM32 Bootloader

Usage

Prerequisites:

• USB-OTG support on your mobile device

Preparation:

1. Connect the STM32 board to your mobile device using a USB-OTG cable.
2. Activate bootloader mode for the STM32 (refer to AN2606 for instructions).

Programming:

1. Select the firmware file to write. Supported formats include:

   • Intel Hex
   • Motorola S-Record
   • DfuSe (STMicroelectronics DFU format)
   • Raw binary

2. Configure writing options:

   • Erase only necessary pages
   • Unset readout protection (if required)
   • Go to CPU after programming
3. Click "Load File to Flash" and wait for the operation to complete.

Additional Operations:

• Erasing
• Checking flash for blank
• Comparing flash with file

Select these operations from the menu.

Tested Microcontrollers:

• STM32F072
• STM32F205
• STM32F302
• STM32F401
• STM32F746
• STM32G474
• STM32L432

Usage Restrictions:

Free usage is limited to 25 firmware uploads. After reaching this limit, you can purchase:

• 100 additional uploads
• Unlimited usage