piclist 2005\08\23\133938a >
Thread: RS485
www.piclist.com/techref/io/serials.htm?key=rs485
picon face BY : Gerhard Fiedler email (remove spam text)



Mauricio Jancic wrote:

> Now, I tough (I guess not much) that full duplex rs485 wouldn't need that
> pin.

Not on the master (if you have a 1:n configuration), but on the slaves.

> Other problem I see is that if I disable all the transmitters since are all
> in hiz the receiver (and the master) reads a lot of crap which I don't
> want...

You could use pull-up/-down resistors ...

> I'll start considering the CAN as Olin suggested.

... but I second Olin's suggestion. Once you worked your way through the
CAN module once, it's a lot easier.

Gerhard
<135rujj77ccxt$.5hoc8yb77ems.dlg@40tude.net> 7bit

In reply to: <200508231625.j7NGPePM012825@fort-point-station.mit.edu>
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