Serial Communication at 10400 baud

How do I communicate with an external hardware device, through the RS232 port, at 10473 baud?
I am using Windows 3.1 and Delphi 1.0.
If it is posible, the program should also run under 95 and NT 4.0.
boniAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

gysbert1Commented:
If you have a standard uart in your PC (16550), this is going to
  be a problem!

The 16550 uses a 1.8432MHz crystal. The uart is programmable
  using a baud rate divisor. The resulting baudrate is   Fosc/(16*Divisor). The fastest rate possible is thus 115200
  and any lower rate must be achievable using this equation.

Unfortunately 10400 is not achievable !!

Let me know if you need more info.

Have a look at "Mastering serial communications"
  ISBN 0-7821-1202-1 by Peter W. Gofton for everything from
  programming the uart directly to doing it in Windows using
  either C++ or Basic.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
boniAuthor Commented:
Edited text of question
0
gysbert1Commented:
Have a Look at http://sunsite.icm.edu.pl/delphi/ (The delphi super page). It contains a few components for serial comunications (with the baudrate selectable). If you want to use a non-standard baud rate as above, it gets trickier to set up in windows. I suggest you have a look at the previously mentioned book in that case. Windows only has options to set the baud to standard values (i.e. 9600, 14400 ,etc) using the provided structures (TCOMDCB, find it in the help !).

Thus it is possible to do and the book will explain how (I will need much more space than provided here in order to explain fully and still not do better than the book. At $26.99 it is a bargain !

0
boniAuthor Commented:
Thanks for the answer. I will have to try the webpage, before I
know how good it is. It will take to long to order the book
from the U.S. to Germany.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Delphi

From novice to tech pro — start learning today.