> We do not have that much input lines. That's a limitation of the > parallel port. > > Of course, we could add multiplexing to the picture... No, just kidding. That is actually what I did with my IEEE488 interface for the LPT port. It works as a floppy drive for my PETs (and my C64 with IEEE488 interface :-) It uses an "ATN trap" too, to handle the timing requirement (the IEEE488 has the same ATN thing) But the interface consists of several ICs, needs extra 5V etc (but works with old LPT interfaces) so it is not the easiest one to build... AndrÃ© -- NEU: FreePhone - kostenlos mobil telefonieren und surfen! Jetzt informieren: http://www.gmx.net/de/go/freephone Message was sent through the cbm-hackers mailing listReceived on 2011-04-29 19:00:07
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