Re: parallel port can't read new value.

Article View: borland.public.cppbuilder.nativeapi

Article #5113

Back to borland.public.cppbuilder.nativeapi Previous Next

#5113

From: Bob Gonder
Date: Sun, 09 Oct 2005 16:14

13 lines
1559 bytes

Andrew McIsaac wrote:

>Problem is if there is a change in status of one of the pins, 
>ie. I physically put a pin high, this change is not read.
>Is there a command to make the port read the actual values.
>Program Im using for ports is from Logix4u.net

The parallel port runs on a strobe signal.
I forget which pin it is.
The data is presented to the data pins, then the stobe sends the data.
It is not enough to change a data pin.
If  you hold a pin high while the program is sending data, you should
see that bit remain constant.

Technical Details

Message-ID: <76gik1l14nvbg7k8eviqd7cp5b0boqe55b@4ax.com>

Path:

arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news.glorb.com!feeder.xsnews.nl!newsfeed.bit.nl!chloor.box.nl!news-out.newsgroups.com!propagator2-sterling.newsfeeds.com!in.nntp.be!caladan.landsraad.net!newsgroups.borland.com!not-for-mail

References: <4348dee1$1@newsgroups.borland.com>

Show Full Headers

Complete Article Headers

X-Google-Thread: 10cc67,73cd4237cd2c1c70
X-Google-Attributes: gid10cc67,public
X-Google-Language: ENGLISH,ASCII-7-bit
From: Bob Gonder <notbg@notmindspring.invalid>
Newsgroups: borland.public.cppbuilder.nativeapi
Subject: Re: parallel port can't read new value.
Date: Sun, 09 Oct 2005 09:14:26 -0700
Organization: MindSpring Enterprises, Inc.
Reply-To: notbg@notmindspring.invalid
Message-ID: <76gik1l14nvbg7k8eviqd7cp5b0boqe55b@4ax.com>
References: <4348dee1$1@newsgroups.borland.com>
X-Newsreader: Forte Agent 1.93/32.576 English (American)
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
NNTP-Posting-Host: 71.0.32.75
X-Trace: newsgroups.borland.com 1128874322 71.0.32.75 (9 Oct 2005 09:12:02 -0700)
Lines: 15
Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news.glorb.com!feeder.xsnews.nl!newsfeed.bit.nl!chloor.box.nl!news-out.newsgroups.com!propagator2-sterling.newsfeeds.com!in.nntp.be!caladan.landsraad.net!newsgroups.borland.com!not-for-mail

Reply to Parent Message