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CAN Bus Communciation

CANBus Communications Decoded

Relevant Module: Practical Discussion > Bus Load

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Discussion and questions related to the course CAN Bus Communications Decoded

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1. How can a Data frame has maximum of 130 bits? I do understand that its worst case with stuffing but how is that possible, logically its only possible to have 64bits per data frame?

2. What is the difference between PDUs and PIDs?


While the payload of a dataframe is limited to 64 bits, there can be more bits than that "on the wire" in serial transport, due to protocol overhead and encoding (bitstuffing, etc).

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