Reliable Mode Changes in Real-Time Systems with Fixed Priority or EDF Scheduling

Provided by: edaa
Topic: Hardware
Format: PDF
Many application domains require adaptive real-time embedded systems that can change their functionality over time. In such systems it is not only necessary to guarantee timing constraints in every operating mode, but also during the transition between different modes. Known approaches that address the problem of timing analysis over mode changes are restricted to fixed priority scheduling policies. In addition, most of them are also limited to simple periodic event stream models and therefore, they cannot faithfully abstract the bursty timing behavior which can be observed in embedded systems.

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