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Subject: Re: Q: Serial port communication / Hardware interrupts
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From: Clemens Valens <c DOT valensNOc DOT SPAM AT mindless DOT com DOT invalid>
Newsgroups: comp.os.msdos.djgpp
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Date: Fri, 21 Apr 2000 00:45:57 -0700
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

I have some experience with interrupt driven serial I/O using
DJGPP for DOS applications and I never loose characters. I tried
some of the libraries available on the net and finally wrote my
own, based on the interrupt stuff in Allegro.

I must disagree with the previous poster on his opinion on
interrupt driven serial communication, I think that for most
cases it is the only real solution.

What is the baudrate you are looking for?

If you want to create a windows app, try your luck in the
Windows VxD newsgroup. I have seen many postings there from
people writing this kind of drivers.

Finally, where I work we have an old app written for DOS in
Borland PASCAL using a lot of interrupt driven serial
communication and it has always worked flawlessly in a DOS box.
It even seems that the DOS support in Windows 2000 has been
improved. So if everything else fails, you can always try that.

Clemens

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