WebThe issue here is not about clock tolerance (really clock skew) it is about the entire interface. Regardless of whether you are using the ISERDES/OSERDES, the IDDR/ODDR or conventional flip-flops (in the IOB or elsewhere) what you are describing here is a system synchronous interface - both devices get a common clock and try and communicate ... WebEdit: After a bit of googling, CAN requires 1.58% clock sync between all nodes, so a +-1% clock tolerance is not strictly good enough, assuming both sides of the link are using a clock that precise, but you might be lucky and it works. You might be able to get in spec if one side of the link has a much more precise clock (+- 0.2%, say), but you ...
Controller Area Network (CAN) Implementation …
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