[tech] Vending machine brain

[Duncan Sargeant]

Mark Tearle wrote on Thu June 14, at 17:54 +0800:
> John wrote:
> > It's not worth using any of the old software.  The disassembly is just to
> > figure out how the hardware was intended to be driven.  A first draft at
> > new software should be very simple: load the row and column you want into
> > the motor drivers, then wait for the home sensor to go off, then on again.
> > Once that's working you can get fancy with the buttons, display, and coin
> > mech.

I found a small-book form HC11 Programmers Reference under piles of
junk inherited from housemates past.  In case its useful, I've kept it
aside in a safe place, so just bug me for it.

,dunc