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Flexible time-triggered protocol for CAN: new scheduling and dispatching solutions

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dc.contributor.authorFonseca, José A.
dc.contributor.authorMartins, Ernesto V.
dc.contributor.authorAlmeida, L.
dc.contributor.authorPedreiras, P.
dc.contributor.authorNeves, Paulo Alexandre
dc.date.accessioned2011-03-10T12:00:23Z
dc.date.available2011-03-10T12:00:23Z
dc.date.issued2000
dc.description.abstractOne of the possibilities to build robust communication systems with respect to their temporal behaviour is to use autonomous control based on the time-triggered paradigm. The FTT-CAN - flexible time-triggered protocol, relies on centralised scheduling but makes use of the CAN native distributed arbitration to reduce communication overhead. There, a planning scheduler is used within a master node to reduce the scheduling run-time overhead. On-line changes to the communication requirements can then be made under guaranteed timeliness. In addition FTT-CAN also allows an efficient combination of both time-triggered and event- triggered traffic with temporal isolation. In this paper, recent evolutions of the initial protocol definition concerning transmission of synchronous and asynchronous messages are presented. These consist in a time division of the elementary transmission window which optimises the available bandwidth for asynchronous messages, keeping the timeliness of synchronous messages without jeopardising their transmission jitter. A novel solution for the planning scheduler is also presented. It consists in an FPGA-based coprocessor which implements the planning scheduler technique without imposing overhead to the arbiter CPU. With it, it is possible to reduce strongly the plan duration thus allowing on-line admission demanded by system elements and, also, to extend the protocol application to high-speed networks.por
dc.identifier.citationFONSECA, J. [et al.] – Flexible time-triggered protocol for CAN: new scheduling and dispatching solutions. In International CAN Conference, 7, Amsterdão, Outubro 2000. ICC’00. p. 1-8por
dc.identifier.urihttp://hdl.handle.net/10400.11/566
dc.language.isoengpor
dc.peerreviewedyespor
dc.subjectCAN - Controller Area Networkpor
dc.subjectFPGA - Field Programmable Gate Arrayspor
dc.titleFlexible time-triggered protocol for CAN: new scheduling and dispatching solutionspor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceAmsterdãopor
oaire.citation.title7th International CAN Conferencepor
person.familyNameNeves
person.givenNamePaulo Alexandre
person.identifier.orcid0000-0002-7958-973X
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublicationc90b1bfb-be87-49f0-ae6e-f149a11f9009
relation.isAuthorOfPublication.latestForDiscoveryc90b1bfb-be87-49f0-ae6e-f149a11f9009

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