alex.freed.007{at}gmail.com wrote:
> On Jan 8, 1:18 am, "Michael J. Mahon"  wrote:
>> On the other hand, if the CPLD can be programmed from the Apple,
>> then programming is just downloading a data file and running the
>> programming program.  ;-)
> 
> Modern CPLDs are normally programmed via a JTAG cable with just
> 4 dedicated pins connected. A parallel port cable can be built or
> bought
> for as little as $12.
> In the case  of my PCPI clone there is not much need to re-program
> it, so I didn't bother to fan out the JTAG pins. Using Apple bus is
> not
> practical. Anyone likely to experiment with the CPLD logic will have
> at least the JTAG cable and probably has enough hardware  skills to
> connect 4 wires.

Then a "flying lead" from the card's JTAG pins to the game port's
annunciator outputs and pushbutton inputs might do the job.  ;-)

-michael

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