Cyber-Physical Systems (Ilona Strugala's Library) by Raj Rajkumar & Dionisio de Niz & Mark Klein

Author:Raj Rajkumar & Dionisio de Niz & Mark Klein
Language: eng
Format: epub
Publisher: Addison-Wesley
Published: 2017-08-14T04:00:00+00:00

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The data structure represents the local memory of the task and is used to store the control signal and the measured variable between calls to the different segments. A/D and D/A conversion is performed using the kernel primitives ttAnalogIn and ttAnalogOut, respectively.

Note that the input-output latency of this controller will be at least 2 ms (i.e., the execution time of the first segment). If preemption by other high-priority tasks occurs, however, the actual input-output latency will be longer.

A limitation of the TrueTime kernel block is that it does not model any other resources than CPU time. For example, the user must explicitly model delays caused by memory accesses and cache misses and include these delays in the segment execution times.

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