The dominant position of CAN in the market, and the increasing complexity of embedded systems, rapidly caused a demand for protocols which guarantee responses in ‘real time’, deterministic solutions and greater security. Consequently, systems using ‘Global Time’ devices were designed. The first of them which was actually used in industry was the time‐triggered communication on CAN (TTCAN) protocol. TTCAN forms a protocol layer at a higher level than that of CAN itself, without modifying the structure of the data link layer (DLL) and physical layer (PL) of the latter. The aim of TTCAN is to define and guarantee the latency time of every message at a specified value which is independent of the load on the CAN network itself. TTCAN’s description corresponds to a session layer (number 5) of the OSI model (between layer 2, ‘data link’, and layer 7, ‘application’), and is inserted into the original, overwritten CAN model.

    controller area networks


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    Title :

    The TTCAN Protocol


    Contributors:

    Published in:

    Publication date :

    2012-03-16


    Size :

    4 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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