MOS is a self-made RTOS written in C++, which was running on a STM32F4 series board.
(1)Original repository with FatFS and GuiLite: https://github.com/Eplankton/mos-stm32
(2)Renode version (pretty trivial, only for Cortex-M): https://github.com/Eplankton/mos-renode
I have been working on this project for over a year, and now it can run smoothly on Renode simulation platform under Linux environment just like what I've done on a real dev-kit board, also debug and tracing works just fine.
For anyone who wonders what Renode is, to be simplified, it's an alternative to Qemu simulator, for better infrastrutures in embedded MCU/Soc, Cortex/RISC-V etc.For more information, check this link if you'd like: https://renode.io/