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Re: Testing a serial port
On 2007-09-06, schmidtd <schmidtd@my-deja.com> wrote:
> On Sep 6, 8:16 am, Jim <j...@magrathea.plus.com> wrote:
>> The card itself has a 25-way D on the end of a ribbon cable - no way of
>> telling exactly how it's wired, sadly.
> Ah, not so sad. It's most likely wired as a standard DTE or DCE. You
> just need to test with a null modem and without, checking standard
> baud rates. Just hope the switch settings you start out with don't
> choose 50 baud on the card... What was I saying about permutations
> again? Seems there are still quite a few.
>
Some progress has been made. I hooked up a standard modem lead rather than a
null-modem lead (gender changing as required) and flipped the switches to a
position that I believe should be 4800, 1 stop bit. Typed in the program and
got a lovely line of 'TESTING's pouring down the Hyperterm screen.
Woot.
However, resetting the //e then type IN#2 and typing on the PC keyboard
(still in Hyperterm) resulted in...nothing.
So I'm halfway there at least.
Jim
--
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FARRANCASSIDY (n.)
A long and ultimately unsuccessful attempt to undo someone's bra.