COM1 and COM2 ports writing

This is a discussion on COM1 and COM2 ports writing within the Networking/Device Communication forums, part of the General Programming Boards category; How can I in C, write to the COM1/2 ports? Is there a function? or something? Can I do it ...

  1. #1
    * Death to Visual Basic * Devil Panther's Avatar
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    COM1 and COM2 ports writing

    How can I in C, write to the COM1/2 ports?
    Is there a function? or something?

    Can I do it with _outp(), if so, what is the address of the COM1 and COM2 ports?

    Thanks.
    "I don't suffer from insanity but enjoy every minute of it" - Edgar Allen Poe

    http://www.Bloodware.net - Developing free software for the community.

  2. #2
    * Death to Visual Basic * Devil Panther's Avatar
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    I'm using the Borland 5.5 C++ compiler, and the win98/2000/XP OS.
    "I don't suffer from insanity but enjoy every minute of it" - Edgar Allen Poe

    http://www.Bloodware.net - Developing free software for the community.

  3. #3
    * Death to Visual Basic * Devil Panther's Avatar
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    Thanks.
    "I don't suffer from insanity but enjoy every minute of it" - Edgar Allen Poe

    http://www.Bloodware.net - Developing free software for the community.

  4. #4
    Just because ygfperson's Avatar
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    I know ms-dos used some special filenames like lpt1 as fake filenames for printers. How involved was that? Was that just a ms-dos shell thing?

  5. #5
    Hamster without a wheel iain's Avatar
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    Its because its treated as a file, lpt1 and the COM ports
    Monday - what a way to spend a seventh of your life

  6. #6
    I am the worst best coder Quantrizi's Avatar
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    www.robbayer.com has a "tutorial" on connecting to serial ports (connecting to COM1, etc... works with this).

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