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Is OS/2 limited to 57600 baud?? I want 115200!

Posted on 1997-04-12
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Last Modified: 2013-12-27
I have problems with the serial speed
when connecting to my ISP, I use InJoy
but it's the same with DOIP.
I can connect using Windows NT (on the
same machine) and everything works fine
but with OS/2 it is VERY slow.
The solution is to adjust the baudrate
from 115200 to 57600, then I get a
decent connection but I would like to
use 115200.
My modem (Lasat 28.8 voice capable of
33.6) does work as it should, I've had
a lot of help with init strings and
testing from Lasat support.
I use the SIO drivers latest version
1.60d. I even wrote to Ray Gwinn who
suggested that I locked the baudrate at
115200 but it did not help.
The UART on the comport is reported to
be an 16550A by SIO.
The modem connects with 115200 but is
seems that there are a lot of bad
packets in this speed. When I force my
modem to 57600 it works very well.
Has anyone out there any idea what
might the problem?
TIA
Leslie Jensen
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Question by:lesjen
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Author Comment

by:lesjen
ID: 1805725
Edited text of question
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Accepted Solution

by:
lynnHo earned 200 total points
ID: 1805726
Try adding the following to your config.sys (near the end).
Remember, the PORT speed (115200) is how fast data is transferred between your modem and your machine (not the line speed).  Are there other (DOS/WINDOZE) programs running that
might share the com port.

Change the COM2 to to COMx for your installation:


CALL=C:\OS2\MODE.COM COM2:115200,N,8,1,TO=OFF,XON=OFF,OCTS=ON,RTS=HS,DTR=ON,IDSR=OFF,ODSR=OFF,BUFFER=ON


This is all one line!
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