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Split, Send, Reassemble: A Formal Specification of a CAN Bus Protocol Stack

Abstract

We present a formal model for a fragmentation and a reassembly protocol running on top of the standardised CAN bus, which is widely used in automotive and aerospace applications. Although the CAN bus comes with an in-built mechanism for prioritisation, we argue that this is not sufficient and provide another protocol to overcome this shortcoming.Comment: In Proceedings MARS 2017, arXiv:1703.0581

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