--- In "Chris" <> wrote:
>
> J.
>
> Did you ever get an answer for this?
>
> Chris
>
> --- In "J" <aireyj@> wrote:
> >
> > I've been trying to get some simple code snipets to work for reading
> > and writting to a TS-ISO485 port in half duplex mode. I've hacked
> > apart a variety of minicom, and modbus application sources but have
> > been unable to read from the port (writting doesn't seem to be a
> > problem).
> >
> > I'm fairly certain I have the port's jumpers and IRQs configured
> > correctly. The RX and TX LEDs indicate data traffic, yet I cannot
> > seem to read any data from the port.
> >
> > Any examples would be appreciated.
I've got a serial library up st
<http://www.seiner.com/ts7000/index.php/Modbus_and_Serial_Comm> .
It's not tested with the TS-ISO485, but it may give you some ideas...
It works with half-duplex quite well...
But... It looks like a full-duplex (4 wire) board; if you only want
half-duplex (2 wire) you need to jumper the two pairs together. Do
you have RX+ TX+ and RX- TX- jumpered together? If not, that may be
the cause of your problems.
--Yan
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