Re: Grappler+ as IO card?

On Apr 30, 9:01 pm, Sir Morris <charlie_rob...@xxxxxxxxxxx> wrote:
the only bi-directional parallel card I know of is the Apple Parallel
Interface Card...

Then I think it's about time there was another one ;)

I have an Automatic Ice printer card which consists of an EPROM and a
6821 PIA. If the ROM code does not support bi-directional
communication it only needs an application to re-program the data
direction registers in the PIA to get 8-bit parallel input.
.

Relevant Pages

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