Accession Number ADA587050
Title Deterministic Execution of Ptides Programs.
Publication Date May 2013
Media Count 16p
Personal Author E. A. Lee J. C. Eidson P. Derler S. Goose S. Matic
Abstract This paper discusses the use of the Ptides model of computation as a coordination language for the design of deterministic, event-driven, real-time, distributed embedded systems. Specifically, the paper shows how the use of synchronized clocks in the context of Ptides enables explicit, platform independent specification of functionality and timing. From this specification we generate code for two target platforms: Renesas and XMOS. The generated code includes a lightweight operating system which performs scheduling, I/O and network handling as well as application specific tasks. Ptides models are developed in Ptolemy, a design and simulation environment for heterogeneous systems. This framework also contains a code generation framework which is leveraged to derive Ptides implementations from the models. We illustrate our approach by designing a simple Ptides application, a small component in a printing press responsible for on-the- y changeover between paper rolls. We demonstrate the design process and show that the generated code exhibits identical timing at the cyber-physical boundary on multiple implementation platforms.
Keywords Coding
Coordination languages
Embedded systems
Moc(Model of computation)
Ptides models
Ptides(Programming temporally integrated distributed embedde
Real time

Source Agency Non Paid ADAS
NTIS Subject Category 72B - Algebra, Analysis, Geometry, & Mathematical Logic
62 - Computers, Control & Information Theory
Corporate Author California Univ., Berkeley. Dept. of Electrical Engineering and Computer Science.
Document Type Technical report
Title Note Technical rept.
NTIS Issue Number 1405
Contract Number N00013-12-1-G015

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