This is not true. The LPT port can be manipulated by a kernel level
driver. In the case of CT we install TVIC32 to control the LPT. The
timing is generated by a real time callback from the OS originally
intended for multi-media applications applications. The Windows system
call is:
MMRESULT timeSetEvent(
UINT uDelay,
UINT uResolution,
LPTIMECALLBACK lpTimeProc,
DWORD dwUser,
UINT fuEvent
);
The callback function then calls the TVIC32 routine to manipulate the
hardware.
73, Ken K1EA
-----Original Message-----
From: ct-user-admin@contesting.com [mailto:ct-user-admin@contesting.com]
On Behalf Of Christian Buenger
Sent: Wednesday, November 06, 2002 6:47 PM
To: bickley@dmv.com; ct-user@contesting.com
Subject: Re: [ct-user] Set-Up With Windows 2000?
As far as I know, Windows 2000 is the "master" of the timing of the LPT
port... therefore no real time CW is possible... Maybe somebody can
confirm
that.
73
Christian, DL6KAC
At 12:18 06.11.2002, you wrote:
>Is there some magical set-up to use with Windows 2000? In particular,
>I'm having problems with the keyer. It sound like like software is
>trying to play a song, rather than generate the monotone you would
>expect, and the LPT port doesn't key the radio as it did on my old Win
>ME machine.
>
>TIA
>
>
>Bill W2ET
>
>
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--
mailto:c.buenger@gmx.ch
fax2mail: +49 25 61 / 9 59 42 99 20
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