Real time P Port control / vxd

[Randal Milota]

Hi all.

Anybody doing real time parallel port control under Win9x? How?
What level of "real-time" is attainable?
If needed,where to find VXD for same?

Thank you in advance.

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[Tom Hanlin]

I believe this is covered in the FAQ section. You might also check the Add-on Vendors pages.

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Tom Hanlin
PowerBASIC Staff

[Randal Milota]

Thanks Tom,

I checked the FAQ ,seems to be about using the forum?

Thought you might have meant the archives, so I did some searches and found bits and pieces (mostly serial port)

The main goal of the post is to find like-minded programmers as the bulk of the programming done (based on posts) is Database/ Internet / Business applications.

I am currently writing machine control code in DOS w/PB35. One look at the windows vs. dos post numbers shows where we are headed. I have been told all the can'ts of real-time in WIN and am looking for someone who knows some "cans".



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[Lance Edmonds]

Take a look at www.lvr.com for parallel port programming info and libraries, etc.


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Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>

[John Hutchins]

I use the parralel and serial ports for testing digital control modules.
I have the routines for reading ,writing from / to the data, control and
status registers of the paralel port + general prpose I/O.
These routines as they stand allow for ~ 10mSec best response
in multi threaded program.
If you want more info let me know.

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I've posted the p port info under WIN 9x parallel port how to.
There is a description of the port registers and the .INC file I use.

[This message has been edited by John Hutchins (edited August 25, 2000).]

[Michael Ritter]

John,

I for one would be interested in learning more about
PP I/O from your routines.

Cheers,

Michael

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[Tom Hanlin]

The "faq" link on the Forum pages goes to the FAQ for the forum software. However, we also have a Frequently Asked Questions forum, which is something completely different.

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Tom Hanlin
PowerBASIC Staff

[Natalie Angel]

Do anyone know how to do hardware I/O in PBDLL that works in Win 98 as well as in NT4?


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[Lance Edmonds]

For NT/2000, you need to use a Kernel-mode Driver, but Win9x permits direct hardware access, so different techniques are required for each platform.

For more information, please review the info at www.lvr.com



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Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>