Re: serial port DTR and RTS
- From: "Vihang Patil" <vihang_patil@xxxxxxxxx>
- Date: Fri, 28 Mar 2008 07:57:02 +0000 (UTC)
Thomas Lutz <tom@xxxxxxxxxxx> wrote in message
<ptcnu35qcareaatfe6lh8ib07noinjqbjh@xxxxxxx>...
When Windows boots, it looks for a mouse connected tothe serial ports
on the PC. This is probably what is causing the RTS andDTR lines to
be asserted when your PC boots. You can disable thisfunctionality by
setting a flag in your Boot.INI file.
The following articles discuss how to do this:
http://support.microsoft.com/kb/q131976/
http://support.microsoft.com/kb/283063/en-us
Thanks Thomas for your suggestions. I had gone through
these articls before too but then these were either for NT
of Windows 2000. For XP I had read a articles which
suggested to use /fastdetect to disable serial and
parallel port enumeration. But that option really does not
make any difference at all. If you have XP the default
settings in the Boot.ini is /fastdetect. But that did not
solve my problem.
I got a workaround for disabling parallel port on windows
startup which is posted above some where in this thread.
But havent so far got a solution to disable the serial
device.
Vihang
.
- References:
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- From: Vihang Patil
- Re: serial port DTR and RTS
- From: Vihang Patil
- Re: serial port DTR and RTS
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