m100 parallel port is output only except for the printer status lines. GPO yes but not GPI...
On Mon, Jan 4, 2021 at 2:39 PM Tom Wilson <wilso...@gmail.com> wrote: > > Seems to me that somebody had a scheme a while back where the joystick > interfaced with the parallel port and status was polled that way (this > avoids having to build a custom interface). > > Yeah, we used to use the parallel port for a lot of things, back in the > DOS days; it doesn't take much to make it an 8-bit GPIO, and I used to have > a sound "card" that used the parallel port. > > I think there are just enough status lines to pull off using it for a > joystick: > > > https://en.wikipedia.org/wiki/Parallel_port#/media/File:25_Pin_D-sub_pinout.svg > > Tom Wilson > wilso...@gmail.com > (619)940-6311 > K6ABZ > >> >>
