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  • Real time P Port control / vxd

    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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  • #2
    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

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    • #3
      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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      • #4
        Take a look at www.lvr.com for parallel port programming info and libraries, etc.


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

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        • #5
          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).]

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          • #6
            John,

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

            Cheers,

            Michael

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            • #7
              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

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              • #8
                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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                If you don't know what the problem is, then you can't find the answer.

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                • #9
                  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>
                  Lance
                  mailto:[email protected]

                  Comment

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