Synthesis of Embedded Software Using Free-Choice Petri Nets

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Synthesis of Embedded Software Using Free-Choice Petri Nets
Software synthesis from a concurrent functional specification is a key problem in the design of embedded systems. A concurrent specification is well-suited for medium-grained partitioning. However, in order to be implemented in software, concurrent tasks need to be scheduled on a shared resource (the processor). The choice of the scheduling policy mainly depends on the specification of the system. For pure dataflow specifications, it is possible to apply a fully static scheduling technique, while for algorithms containing data-dependent control structures, like the if-then-else or while-do constructs, the dynamic behaviour of the system cannot be completely predicted at compile time and some scheduling decisions are to be made at run-time. For such applications we propose a Quasi-static scheduling (QSS) algorithm that generates a schedule in which run-time decisions are made only for data-dependent control structures. We use Free Choice Petri Nets (FCPNs), as underlying model, and def...
Marco Sgroi, Luciano Lavagno
Added 13 Nov 2009
Updated 13 Nov 2009
Type Conference
Year 1999
Where DAC
Authors Marco Sgroi, Luciano Lavagno
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