• C

Programming serial (COM1) port on MS-DOS?

Hello,

What is the best way to program a serial port on MS-DOS in C?
For example set protocol to 9600,n,8,1,xon and output "hello world"?

Thanks for your time,
James
JamesC2020Asked:
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rstaveleyCommented:
The best approach is to use an interrupt service routine. I've programmed several of these in the past, but I'd recommend libraries by others :-)

Greenleaf does a commercial library for this if you want to throw money around, but there are a lot of free alternatives on the net.

e.g.
 http://www.programmersheaven.com/zone3/cat411/6719.htm
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