Thread: Serial & Interrupts

  1. 01-10-2003 #1
    jon_nc17
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    Question Serial & Interrupts

    Hi Everyone,

    I have a question... Some of you may have seen my other post on the DOS board, but this one is more general. I am trying to make a program that works on a DOS touch screen computer. The touch screen is allegedly connected to COM3, using interrupt 15. I think I have read that normally COM3 uses interrupt 3 or 4, so is there anything special that I have to do to specifically use interrupt 15? Also, if it's not to much trouble, can anyone find an example? Anyway, thanks for your help!

    Jon Scott
  2. 01-10-2003 #2
    DougDbug
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    www.beyondlogic.org

    There is some fascinating info about programming ports at: www.beyondlogic.org I dunno if it will answer your question.

    [EDIT]
    Corrected above URL. Man, that was embarrasing!
    [/EDIT]
    Last edited by DougDbug; 01-12-2003 at 01:05 AM.
  3. 01-10-2003 #3
    Sebastiani
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    You mean www.beyondlogic.org/
    Code:
    #include <cmath>
#include <complex>
bool euler_flip(bool value)
{
    return std::pow
    (
        std::complex<float>(std::exp(1.0)), 
        std::complex<float>(0, 1) 
        * std::complex<float>(std::atan(1.0)
        *(1 << (value + 2)))
    ).real() < 0;
}
  4. 01-12-2003 #4
    DougDbug
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    Red face Oops!

    Thanks Sebastiani.
    Sorry jon_nc17.
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