Article View: borland.public.delphi.nativeapi
Article #12066Re: Interrupts
From: Vinko
Date: Mon, 25 Nov 2002 09:25
Date: Mon, 25 Nov 2002 09:25
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1975 bytes
BEN, do you know where can i found such a driver or how can i make one? THANK YOU, Saso "Ben Hochstrasser" <bhoc@surfeu123^H^H^H.ch> wrote in message news:Xns92D0F38E8AFD9bhoc@207.105.83.65... > Vinko wrote: > > > I'm reading/writing data from/to parallel port. If interrupts are not > > disabled when reading or writing from/to port, the received or > > transmitted data is not proper. > > Windows is not a realtime operating system. It uses pre-emptive > multitasking (ie the process scheduler will give every other task some > processor time from time to time) and you simply aren't allowed to get > exclusive control over the system (think of viruses - brrrr). > > If you need to read data from a port without the aid of some software or > hardware handshaking then you must either use a different operating system > or get a specifically designed board/driver solution. > > -- > Ben
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f94dd,9121950abf299711 X-Google-Attributes: gidf94dd,public X-Google-ArrivalTime: 2002-11-25 02:15:45 PST From: "Vinko" <digitalsv@email.si> Newsgroups: borland.public.delphi.nativeapi References: <3de106d6@newsgroups.borland.com> <3de10f5c@newsgroups.borland.com> <3de14c3a@newsgroups.borland.com> <Xns92D0F38E8AFD9bhoc@207.105.83.65> Subject: Re: Interrupts Date: Mon, 25 Nov 2002 10:25:09 +0100 Lines: 27 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 NNTP-Posting-Host: 217.72.70.171 Message-ID: <3de1ec28@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1038216232 217.72.70.171 (25 Nov 2002 01:23:52 -0800) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-03!sn-xit-01!sn-xit-06!sn-xit-08!supernews.com!newsfeed.news2me.com!border1.nntp.aus1.giganews.com!nntp.giganews.com!newsfeed1.cidera.com!Cidera!news.uni-x.net!newsgroups.borland.com!not-for-mail