// the find
MaJerle/stm32f429
Keil projects and libraries for STM32F4xx devices
A collection of 63+ peripheral driver libraries and example Keil projects for STM32F4xx microcontrollers, built around the STM32F429-Discovery board. It covers everything from basic GPIO and USART to SDRAM, Ethernet, USB host/device, FFT, and STemWin GUI. Useful as a reference or starting point for bare-metal STM32F4 development, particularly if you're working without an RTOS.
The breadth is genuinely useful — peripheral coverage is thorough, hitting obscure things like DMA2D Chrom-ART, OTP bytes, and MCO clock output that most tutorials ignore. Each library maps cleanly to a specific peripheral or IC, so finding what you need is fast. Multiple target configurations per project (F407, F429, F401, F411, Nucleo variants) means you're not stuck adapting Discovery-specific code. The companion blog at stm32f4-discovery.net has worked examples for every library, which is more useful than most embedded repos where the README is the only documentation.
The repo has been dead since December 2022 and targets STM32 HAL/SPL patterns from 2014-2015 — ST's official HAL has since gone through multiple breaking revisions, so some of this code will not compile against current STM32CubeF4 without work. There is no CMake or any modern build system; it's Keil .uvprojx files or bust, and the GCC/Coocox support mentioned in the README is informal at best. No RTOS integration anywhere — everything is bare-metal polling or interrupt-driven with no thought given to thread safety, so dropping any of these into a FreeRTOS project requires auditing. The emwin directory ships with prebuilt STemWin 5.22/5.26 binaries but no license clarity — STemWin had commercial licensing restrictions that are awkward for any real product.