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Free real-time operating system designed for microcontrollers
Free, extremely simple, amazingly tiny and very fast real-time operating system (RTOS) designed for deeply embedded applications.
Target: ARM Cortex-M, STM8.
It was inspired by the concept of a state machine. Procedure executed by the task (task state) doesn't have to be noreturn-type. It will be executed into an infinite loop. There's a dedicated function for immediate change the task state.
PRTOS is a simple, compact preemptive RTOS for embedded systems
PRTOS is an open-source preemptive real time operating system kernel for embedded applications. It presently supports the AVR and MSP430 architectures.
The advantages of PRTOS are:
It has the smallest footprint of any true preemptive system: 1.9kB for basic scheduling and task control, 5.1kB with all the features below (AVR '328 / gcc -Os);
Only 950 lines of code implement all of the RTOS features (SLOC-L);
The system is well documented with a comprehensive manual,...
aiorOS is an educational purpose Operating System project based on IA386. Its kernel provides support for: system calls, multitasking, paging (processes have 4GB space area). Runs binary programs as processes. Developed by Salvatore Iengo.
Developer notes:
- gcc version 4.0.2
- bochs 2.2.5
- Virtual box Suse10 development environment available for download