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Mail Archives: opendos/2004/02/17/15:36:15

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From: shadow AT shadowgard DOT com
To: opendos AT delorie DOT com
Date: Tue, 17 Feb 2004 12:31:45 -0800
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Subject: RE: X00 and other stuff, com speed with m$dos 6.22
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On 17 Feb 2004 at 16:56, da Silva, Joe wrote:

> 
> Well ... that's just about all programs, they all mess around with 
> the UART registers to set baud rates > 9600 (XT) or > 19200 (AT) 
> because, AFAIK, the Int 14h services do not cater for baud rates 
> higher than this. I wonder if that's the problem - the software here 
> relies on Int 14h services to set baud rate and hence cannot set 
> anything beyond 19200? 

That's *why* I suggested X00. If the progran is using Int 14 services 
as opposed to directly accessing the UART, then X00 will *ignore the 
command to change the baud rate and leave it at what it was "locked" 
at.

--
Leonard Erickson (aka shadow)
shadow at krypton dot rain dot com


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