openMMCOpen source firmware for MMC controllers
arm synthWavetable Synth Running on an STM32F 32-bit ARM Cortex M3 microprocessor
cortexm-AEShigh performance AES implementations optimized for cortex-m microcontrollers
preemptiveA minimum preemptive OS on Cortex-M3 (specially on blue-pill board) written in Rust.
zmuzmu - Emulator for Microcontroller Systems
ez-rtosA micro real-time operating system supporting task switching, delay function, memory allocator and critical section. It is writen on ARM Cortex-M3 assemble language, it runs successfully on STM32F103 MCU.