Do you have a question? Post it now! No Registration Necessary

Translate This Thread From English to

Threaded View
I am working on a communication programme on PC which should work i
the old DOS mode and am using Turbo'c'. The baudrate needed i
115200.  How does one set this baud rate (bioscom does not support)
the mother board is about three years old so I guess it may be havin
16550. Can any one suggest where I can get documentation on this IC
I tried interrupt to receive and it works OK in win2K, dos mode an
does not work on win98 os mode!!! why is this happening? Thanks i
advance for the help


Quoted text here. Click to load it

By writing the appropriate chip registers.
Quoted text here. Click to load it

Ehhr, google? "16550 pdf" Only 54.000 hits or so... :-)

Quoted text here. Click to load it

Not sure. It should work. Many years ago I wrote a TurboPascal unit for this
kind of comms and this worked on all windows versions from 95 to 2000.
Haven't tried it on XP yet.

You may download it from and use it
as you please.


Quoted text here. Click to load it

By writing directly to the register, or using any which serial
communications library to do that for you.  Trying to get this to work
for a DOS program running on anything else but real, raw DOS might
well prove impossible.

Hans-Bernhard Broeker (
Even if all the snow were burnt, ashes would remain.

Site Timeline