On Mar 10 15:47 96, Damian Harden of 3:621/525 wrote:

DH> Dave,
DH>      thank-you so much for your help. It was great to see that someone out 
DH> there has the community spirit to reply to a pretty vague message. In reply 
DH> to your questions:

DH> NO, I am not using a FOSSIL driver for communications - I wouldn't know 
DH> where to start.

OK.  "FOSSIL" = Fido, Opus Standard Serial Interface Layer.

Programs:  X00, BNU, OPUSCOM, SIO (for OS/2) come to mind at once.

X00153. and BNU170. are a
good start.

The functions they do are difficult.  Using them isn't.

Get one or more (X00 and BNU recommended - read both the manuals through.)
and try to understand what they do, why, and how.

By the time you have a serial coms interface layer up to that degree of
sophistication and reliability, you're talking several man-years of non
negligible effort.

You'll be having a lot to do to get a useful coms based program going, and
then going reliably, without having to worry about the vagaries of 8250,
16450 and 16550 and all their sisters and their cousins and their aunts.

Regards,
Dave Hatch.

--- Msgedsq 3.20