Re: question about can bus

Lacassaigne Jean-Francois wrote:
> Hi,
> Greetings from Belgium.
>
> I'm working on a data bus who use right now only the physical layer of
> the can bus. (tranceiver only and no controller).
> This works as there is only one device talking on the bus. all other
> are "listen only".
>
> My question is as follow :
> If i add can controller only to the "talking devices", will the
> "listen only" devices still be able to get the message even without
> having a can controller on board.
>
> this would give a bus with :
> * talking devices having can bus controller and can bus transceiver
> * listen only devices having only can bus transceiver.

The "talking device" is using a line protocol and is expecting at least
an ACK signal from the receiving stations.
No ACK means the bus is dead ... so you have to spend CAN controllers
also at the receiving sites.

--Armin

>
>
> kinds regards
>
> jean-francois
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