Post by Tom Porter
The subject pretty much tells the question. There are a TON of
printer cards on ebay for $10 and $15 bucks... and they all have a
bunch of chips on them. Do you think a generic printer card can be
programmed and repurposed to do something pretty cool?
ALL Parallel Cards are Bi-Directional to some extent..
You need to Output at least 8 Data Lines for Data, and a few other
Control Lines, plus 4 and a few other Control Lines for Inputs...
The PCAnywhere Parallel cables relied on this fact...
Woz's Apple Printer Card is setup to be both Input and Output... Very