From: Raymond C. Bryan (raycomp_at_visi.com)
Date: 2002-06-22 18:58:44
>Professor Dredd wrote:
>>When I saw the guy say he could make a replacement for 82s100 I thought
>>it sounded like a good idea. Not knowing how to make such an IC, I
>>wonder what would be required to configure the (hypothetical) new
>>device for use on C-64 and other CBMs.
>
>One could build a small adapter board that holds a modern surface
>mounted programmable logic chip (and its boot EEPROM if the chip
>needs one). Any chip that features at least 16 inputs and 8 outputs
>(or e.g. 24 programmable I/O pins) will do the job. But I think
>that the cost will be higher than that of a C64 PLA (or a broken C64
>that has a working PLA). The replacement does make sense for rarer
>machines, such as the PET product line or the 264 series.
My experience as a prepair shop for Commodores is that the PLA is the
most likely IC to be damaged. At some point a source will need to be
found for keeping the remaining c64's alive.
--Ray
--
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