Different and also multi-core (SMP)

The Abassi family of RTOSes is built on a kernel: a single "C" function handling all RTOS services. Very few RTOS use a kernel although a kernel offers many advantages over to the ubiquitous multi atomic function RTOS:

    1. Much smaller code
    2. Faster operation
    3. No disable/enable of the interrupts (No critical regions)
    4. No dead code when optimally configured

The fully preemptive Abassi real-time kernel is available for an extensive set of processors, single and multi-core, and toolchains. The typical size of the kernel when all features are enable is around 5 Kbytes (single core) or 6 Kbytes (multicore), 1K in its minimum configuration, and it has a low latency.

Unmatched Feature Set

In addition to the standard features supported by all RTOS, the Abassi family has many features unmatched in the industry:

    1. Intelligent starvation protectionGuarantees fair access to CPU, via enhanced priority aging, even on heavily loaded systems.
    2. Priority inheritance, including dynamic trackingAutomatically adjusts for priority aging, timeouts, etc. and propagationBetween entangled mutex owners, to prevent deadlock.
    3. Adaptive priority ceilingTarget priority is self determined.
    4. Deadlock detectionReports recursive mutex dependencies anywhere in the execution chain.
    5. AsymmetricTimeslice adjustable at a per task level. Round Robin scheduling
    6. Hybrid interrupt stack
    7. and more...

See more features here