How do I access the serial port from assembly?

Discussion in 'Macintosh Computers' started by durwin, Oct 22, 2003.

  1. durwin macrumors newbie

    Joined:
    Oct 22, 2003
    #1
    Where can I find technical specifications on Performa 6360 serial port programming? I need to write assembly code to communicate via serial port to our hardware. I assume the printer port and modem port are the same rs422?

    Any references are welcome.

    Best Regards,

    Durwin
     
  2. Sun Baked macrumors G5

    Sun Baked

    Joined:
    May 19, 2002
    #2
  3. durwin thread starter macrumors newbie

    Joined:
    Oct 22, 2003
    #3
    I'll go read those references, especially last one. But let me elaborate. This "Serial Driver" will run on an RT OS which boots from a floppy. So it must be 100% self contained. No Mac OS dependencies. But that last URL looks like it will certainly help me understand that which I will need to know. If I can get the address the UARTS are at (or what ever chip they use for rs422), that would be in right direction.

    Best Regards,

    Durwin
     
  4. Sun Baked macrumors G5

    Sun Baked

    Joined:
    May 19, 2002
    #4

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