On Wed, 28 Jan 2004 at 10:23:14, Michael Grunditz wrote:
(ref: <[EMAIL PROTECTED]>)
>
>Hi all !
>
>Despite all your help last time I cant figure out how
>to get my Q40 talk whith qpc2.
>
>On the Q40:
>
>baud 9600
>lrespr sernet
>snet 1
>sernet
>
>and the equivalent on qpc2.
What is the wiring of your cable?
If both are 9 pin this should work:
2 RX <-> 3 TX
3 TX <-> 2 RX
4 DTR <-> 6 DSR
5 GND <-> 5 GND
6 DSR <-> 4 DTR
7 RTS <-> 8 CTS
8 CTS <-> 7 RTS
9 CD NC
Most null modem cables will be like this.
Try testing the connection first direct using a terminal program each
end. Then type characters each side. If you see them uncorrupted, then
you have a handshaking problem at speed.
If you see nothing at all either end then you have problems.
It could be one or other serial card is not working or not set up
properly. The Q40 end is the most likely problem, as PC bios will
default to an OK state.
You will then need a known working PC serial port to test against.
One that works with a serial mouse is a good starter, but serial mice
work at 1200 bps and do not use handshaking!
A port that works at speed with a modem will probably be working, but
CTS is often not used at all, and sometimes not even wired on the modem
cable.
For sernet it is vital that both RTS and CTS are used and working.
A 'real' QL is a good testing machine - although only with
Hermes/superHermes and working motherboard buffers.
--
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