Gerhard Fiedler wrote:
> Really? What do you call the "original Bosch spec"? Do you have a link
> to or a copy of a Bosch CAN spec that defines the physical layer?

I went back and looked at the Bosch spec from 1991 that I had in a notebook
and found the same thing you did.  However, I do remember reading about the
differential signalling, impedence of the twisted pair, etc.  After all,
these things still have to agree in any one implementation, and
semiconductor companies would not have invested in the development of chips
that connect directly to the physical link if there wasn't some kind of
agreement on what that should be.

My recollection is that I read the physical layer details in a Bosch
document somewhere over a decade ago, but I can't find that now so I could
be wrong.


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