Analysing APEX applications

  • Authors:
  • N. Audsley;A. Wellings

  • Affiliations:
  • -;-

  • Venue:
  • RTSS '96 Proceedings of the 17th IEEE Real-Time Systems Symposium
  • Year:
  • 1996

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Abstract

The next generation of civil aircraft may be produced using Integrated Modular Avionics (IMA). A component of IMA is APEX, a standard operating system interface. This supports a two-level scheduling scheme consisting of fixed priority scheduling within a statically generated cyclic schedule. This paper illustrates how APEX applications can be analysed for their response times and shows that there is potential for a large amount of release jitter.