Can somebody explain to me how to program the ISA-bus?

Can you for example put some of the pins to high(5V)like
you program the LPT-port or is it much harder then that?

Thanks

Comments

  • In general all you have to is direct port I/O. Or use the BIOS services if running win32. Here's a link to get started:

    http://www.lvr.com/parport.htm

    I have used direct port I/O to read the status lines on both the serial ports and the parallel port for use as a digital I/O device (like for a burglar alarm). All you have to do is decide which bit to set and write or read the appropriate port. It's very simple, really.

    : Can you for example put some of the pins to high(5V)like
    : you program the LPT-port or is it much harder then that?
    :
    : Thanks
    :

  • Thanks!


    : In general all you have to is direct port I/O. Or use the BIOS services if running win32. Here's a link to get started:
    :
    : http://www.lvr.com/parport.htm
    :
    : I have used direct port I/O to read the status lines on both the serial ports and the parallel port for use as a digital I/O device (like for a burglar alarm). All you have to do is decide which bit to set and write or read the appropriate port. It's very simple, really.
    :
    : : Can you for example put some of the pins to high(5V)like
    : : you program the LPT-port or is it much harder then that?
    : :
    : : Thanks
    : :
    :
    :

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