Re: Port LPT + ADA (whta do I wrong?)
From: Jerry van Dijk (jerry_at_jvdsys.demon.nl)
Date: 12/09/04
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Date: 09 Dec 2004 09:17:09 +0100
Dennis Lee Bieber <wlfraed@ix.netcom.com> writes:
> On Tue, 7 Dec 2004 19:13:52 +0100, "Slawo - MIR"
> <mszajac@poczta.onet.pl> declaimed the following in comp.lang.ada:
>
> I don't know enough about the arguments you are using, but...
>
> > I try to assingn to variable (field of record) "struktura.Offset" and to
> > "struktura.OffsetHigh" some different values - 16#379# (address of input
> > register), 16#01#... and it didn't work :(
> >
> ...If you mean for 16#379# to be the physical I/O address for a
> parallel port, I suspect it isn't going to work at all.
The problem is not only that the the addresses in question are I/O addresses
instead of memory addresses, but also that NT, W2K and XP do not allow a
user-lever program to access them.
The easiest solution to this program is to use one of the the generic I/O port
device drivers, for example see:
http://www.beyondlogic.org/porttalk/porttalk.htm
succes,
Jerry.
-- -- Jerry van Dijk -- Leiden, Holland -- -- 'Tradition is not the worship of ashes, but the preservation of fire.' -- Gustav Mahler (1860-1911)
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