RTX5(CMSIS-RTX)
RTX5 real time kernel for Arm Cortex-based embedded systems (spin-off from CMSIS_5)
CMSIS-FreeRTOS
FreeRTOS adaptation for CMSIS-RTOS Version 2
freeRTOS
littlefs
QT5
Azure RTOS(ThreadX全家桶)
RT-thread
RT-Thread is an open source IoT real-time operating system (RTOS).
uffs
UFFS - Ultra low cost Flash File System
