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CARIBOU++ RTOS is a so called "Real Time" Preemtive Multitasking (Threaded) Scheduler and collection of support services for ARM microcontrollers.

Platform CLK FREQ Context Switch Kernel Size (bytes)  
ARM Cortex-M0 / STM32F030 48 MHz 2.25 uS ~ 4500  
ARM Cortex M0 / STM32F030 8 MHz 12.5 uS ~ 4500  
ARM Cortex-M4 / STM32F407 168 MHz 0.45 uS ~ 5400  

Get CARIBOU++ RTOS on GitHub
CARIBOU RTOS API Documentation
CARIBOU++ RTOS API Documentation

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