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Parallel Port Interface

Could somebody share a simple circuit that would interface with a PC's LPT1? The circuit should be capable of doing I/O with the PC. Thanks.


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  • : Could somebody share a simple circuit that would interface with a PC's LPT1? The circuit should be capable of doing I/O with the PC. Thanks.




    Hi!


    This is really easy...Get the pinouts of the

    parallel port...some site like:

    www.darkportal.com/cc

    as I remember...

    pin 1: Strobe (+5v) for running IC's

    Pin 2-9: 8 bits Output (+5v/0v) Set bits on address: port &Hx378

    next 8(7?) bits are input pins nomatter what any

    reference says...read these pins at port &hx379

    and &hx37A


    you can output/input logic 1 or 0 on these pins

    do not apply more than 5+V on input it will fry your controller, believe me I've tried it, and

    do not apply motors directly on port.

    You don't need any electronic, you've got I/O here


    If you have any specific questions

    help your self an write me a note!!!


    Azid CaT






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