Building a safe and secure embedded world

PXROS - Real-time OS for TriCore™ and AURIX™

PXROS-HR is an object-oriented real-time operating system (RTOS) with a very modern microkernel. Its architecture makes it particularly suitable for use on modern multicore MCUs. The current version of PXROS-HR brings improvements in the concepts for encapsulation and has improved robustness. This is achieved by using hardware protection mechanisms that are part of modern microcontrollers such as Infineon's AURIX family.


Safety approved and certified

The PXROS-HR operating system for TriCore is officially safety tested. The certificate on the suitability of PXROS-HR for safety-relevant applications up to SIL 3 (IEC61508) and ASIL D (ISO 26262) is valid from February 2019 to February 2024.
Part of the certification is an evaluation report with the results of the certification by TÜV-Nord Systems GmbH & Co. KG.

PXROS-HR was developed on the basis of the HighTec C/C++ compiler for TriCore/AURIX. This makes it particularly suitable for safety-relevant industrial and automotive applications. It integrates into the software frameworks MCAL and SafeTlib from Infineon, is highly optimized for the TriCore architecture and offers multi-core support for the AURIX family (... read also about the Hitex SafeTpack for AURIX).

Main features

  • Fast real-time microkernel operating system
  • Message-based intermediate tasks and intermediate cores
  • MPU-protected task resources and message data
  • Enhanced resource and rights management for tasks
  • Low latency flexible interrupt subsystem
  • Meets the requirements of IEC 61508 (SIL2)

Essential design elements

  • Freedom from interference in the granularity of the task-level
  • Core-agnostic task code and communication scheme
  • Identical application patterns for single and multicore designs
  • Simple single-to-multicore migration
  • Reusability of software components (task code)
  • Simplified core load distribution and design verification
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