🚀 go-pugleaf

In article: <83h1fBA1z5cxEwpu@pzoptic.demon.co.uk>  Tim Carter 
<tim@pzoptic.demon.co.uk> writes:
> 
> Friends
> what I would like to do is address individual serial port pins to run an
> external device from a c or pascal program.
> eg on program command "X" pin 1 will go high (?+5V) and on command "Y"
> pin 1 will go to ground.
> Is this possible and if so how? If not serial port pins then any other
> port?

The parallel (printer) port would probably be a better bet. 
(Assuming that you want output only.) Provided you can make your
hardware fake an on-line printer (which should not be too difficult)
you could use the BIOS printer services to toggle the lines.

> If this is the wrong news group I sincerely apologise - please tell me
> where to go (nicely!).

This is the right group. (Well done! :-)

> Many thanks in advance for any help.  ps I get out of my depth on pc
> technicals very quickly!!

Well it's never too late to learn. You will need to do so if you
want to mess around with low level hardware interfacing.

-- 
Chris Isbell               Southampton, England
chris@kenda.co.uk (work)   chris@isbell.demon.co.uk (home)
+44 1703 869922            +44 1703 465367