[DUG] Controlling PC Hardware Ports
Rohit Gupta
rohit at cfl.co.nz
Fri Oct 17 12:23:57 NZDT 2008
If you are still persuing this, as mentioned,, you need to use ioport.
check out this website
http://www.winsoft.sk/
I had to use it to write a threaded spooler for legacy, expensive serial
printers.
Colin/Mina wrote:
> Hi,
>
> I want to monitor some code to ensure that I have some timing
> correct. I was hoping to hook my oscilloscope to a readily available
> electrical signal (Such as Serial Port RTS) and to add instructions in
> my code to set and clear the appropriate modem port.
>
> Unfortunately the old Turbo Pascal instructions that allowed this, eg
> Port[$2FC] := 2) // Set b2 of Modem
> Register and
> Port[$2FC] := NOT 2) // Clear b2 of Modem Register
>
> but these don't appear to be available in Delphi (not in D5 anyway).
>
> Any solutions please?
>
> Thanks
>
> Colin
>
>
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