Re: Parallel port hardware

Roger Hamlett <rogerspamignored@xxxxxxxxxxxxxxxxxx> wrote in
news:xZ1Ni.3317$WX3.288@xxxxxxxxxxxxxxxxxxxx:

There used to be a standard 'mod' for the old printer cards, of cutting
pin1 on the output driver chip (the output enable line), and connecting
it to a spare latch on an LS174 on the card, allowing the direction to
be switched.
The outputs on the parallel port, were _not_ 'open collector' drives.

Best Wishes


I've done that one before. You use bit 5 on the control line.

I've also made a paralell card into an interface for one of those
MKE/Panasonic/Creative CD-ROM drives.
.