stm32f4de example code
FreeBare-metal examples and loader for STM32F4DISCOVERY board
FreeFree tier
About stm32f4de example code
STM32F4DISCOVERY board example code and tools repository by dwelch67. Contains bare-metal examples in C for the STM32F407VGT6 microcontroller (Cortex-M4 with FPU), covering GPIO, UART, SPI, floating point, MIDI, threading, and more. Includes a command line flash loader derived from texane/stlink and instructions for using dfu-util and OpenOCD. Source of the 'stm32f4de example code' entry referenced in the Awesome-Embedded list.
Key Features
Example code for STM32F4DISCOVERY board (STM32F407VGT6, Cortex-M4 with FPU)
Includes blinker, UART, SPI, float, MIDI, threading, and random number examples
Command line flash loader derived from texane/stlink
Supports DFU bootloader via dfu-util
Integration with OpenOCD for stlink debugging and flashing
Schematics and reference manual links for board and MCU
Pros & Cons
Pros
- Free and open source, no vendor lock-in
- Covers a wide range of peripherals and features
- Includes a practical command line loader
- Works with OpenOCD for flexible debugging
- Active community around STM32 discovery boards
Cons
- Documentation is minimal (mainly code comments and README)
- Limited to the STM32F4DISCOVERY board and its specific MCU
- Requires Linux environment for dfu-util and OpenOCD (though adaptable)
- No official support or updates guarantee
Best For
Learning low-level STM32F4 programming and Cortex-M4 architecturePrototyping embedded systems on the STM32F4DISCOVERY boardTesting and debugging peripheral drivers before integrationEducational reference for bare-metal ARM development
FAQ
How do I flash a program using the stlink interface?
Connect the mini-B USB (powers the board and communicates with stlink). Use the provided command line loader or OpenOCD.
How do I use the DFU bootloader?
Remove the SB18 solder bridge (or set boot0 high), connect micro-B USB, then use dfu-util: dfu-util -d 0483:df11 -c 1 -i 0 -a 0 -s 0x08000000 -D myprogram.bin. After loading, set boot0 low and reset.
What hardware is this code for?
It is designed for the STM32F4DISCOVERY evaluation board with the STM32F407VGT6 microcontroller.
Can I use this code with OpenOCD?
Yes, OpenOCD supports the stlink interface. You can configure and use OpenOCD for flashing and debugging.