[comp.sys.amiga.hardware] Parallel Joystick Adaptor Questions

koo@tcville.HAC.COM (07/07/90)

I need some assistance with parallel port joystick adaptors:

1)  Is there a standard for these adaptors?
    (
       I built an A500/A2000 adaptor according to a Usenet posting a few
       months ago, but it doesn't work.  

       The original posting was for Gauntlet II, but when this adaptor was
       plugged into an A500 with TV Sports Basketball, no signals from the
       extra joysticks appear to be recognized.

       I don't know if it is a software or hardware problem???!
    )

2)  Where can I find more info about joystick adaptors?  Maybe I could
    design one?

3)  Has anyone been able to get a parallel joystick adaptor working with
    TV Sports Basketball?

4)  I'm doing this for a friend with an A500, I have an A2500 myself (and no
    TV Sports Basketball), but both these Amigas ought to have the same
    configuration as far as joystick adaptors are concerned, is that correct?

    Frances Koo (koo@tcville.hac.com)