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OCEOS real-time operating system

OCEOS is a real-time pre-emptive fixed priority operating system that can be used in applications that require European Space Agency ECSS Category B or ISO 26262 standards. It has a small memory footprint and requires only one system stack per CPU rather than a stack for each task. It provides support for precisely timed data outputs independent of task scheduling. OCEOS supports applications running on RISC-V, ARM, & SPARC based hardware. In a multicore environment OCEOS can run in parallel with other lower reliability operating systems. Support for AI processing using OpenVX and OpenCL is on the roadmap. OCEOS features include:

  • Fixed priority pre-emptive scheduling
  • Based on Stack Resource Policy – unbounded priority inversion and chained blocking cannot occur. Deadlocks impossible on single core and warning provided on multicore
  • Single stack per CPU rather than separate stack for each task
  • Small code footprint ( <10 kB for core functionality)
  • Mutex (standard & read/write), counting semaphore, and data queue support
  • High precision timed actions independent of scheduling (data output and task start)
  • Supports SPARC, ARM, and RISC-V processor architectures
  • DMON debug tool support showing task/interrupt execution timeline
  • Certification service for OCEOS to run on customer designed boards
  • Support & Independent Software Validation services available from OCE
  • Compliant with ESA ECSS Category B standard
  • Multicore certification for RISC-V Microchip  PolarFire®, SPARC LEON4 E698PM, and ARM Cortex-A9 HISAOR AI SOC.
OCEOS App Debug in DMON
Debugging OCEOS application

Click here for detailed technical information from the OCE wiki