Flexible Safety RTOS within CMSIS Pack

The Flexible Safety RTOS

Flexible Safety RTOS is the Pre-Certified Safety RTOS with Space Protection for usage according to IEC 61508, IEC 62304 und ISO 26262.

Flexible Safety RTOS

CMSIS Pack for Flexible Safety RTOS


Within this CMSIS pack you get an evaluation version of the Flexible Safety RTOS for Cortex-M4F. The evaluation version is limited in:

  • Number of active RTOS objects (Tasks, Queues, etc.) is limited
  • No safety manuals included
  • RTOS delivered as library

Feel free to download and test the evaluation version of our RTOS. Simply import the CMSIS pack into your build environment and start programming great safety functions with hard real time behavior.

Download CMSIS Pack

Get all Functions of the Flexible Safety RTOS

Pre-Certified RTOS with Space Protection Extension

All service functions of this proven real time kernel are pre-certified. Start using the possibilities of the Flexible Safety RTOS results out of a complete set of RTOS services including the memory protection extension to create your awesom projects.


  • Preemptive Multi-Tasking
  • Software Timer
  • Process Space Protection
  • Memory Management

Event Handling

  • Flags
  • Semaphors
  • Mutex


  • Queue
  • Mailbox
  • Shared Memory
Download Reference Manual (Registration Required)

Included Example Project


To simplify the start of using the RTOS, the included examples demonstrates a complete integrated system. Select your evaluation board and ensure, that you select a board with a device running a Cortex-M4F core. Feel free to integrate the RTOS to your evaluation board as a first training.

Download Example Description

Reference Evaluation Board

Evaluation Board: STM3240G EVAL
Mounted Device: STM32F407IG

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Arrange an expert meeting

We offer a free and non-committal interview with one of our experts. We can get to know each other, answer your open questions and also discuss the first requirements of your project.

Related Products and Services

The Space Protection Extension is the extension for real-time kernels enabling the support for memory protection technologies. Flexibility through a uniform programming interface on all memory protection technologies.

Take advantage of our experience in functional safety and real-time kernels within your project. Through the Safety Mentoring with adaptation and certification of a real-time kernel to your special requirements in the project, we can provide an optimized solution.