Hi Ruud, On 4/11/12 10:34 PM, Baltissen, GJPAA (Ruud) wrote: > What about creating a device the mimics the 6702 as good as possible? > Preferably one that can be reprogrammed in circuit? IMHO a much better > idea then changing programs only to find out that there is still part > that needs to be changed :) I saw the snippet that Olaf posted with dongle_values. If it only needs to loop a fixed sequence, how about an EPROM and a counter? The counter would be connected to the address lines of the EPROM and would increment by one on each 6702 read. It would also need a little logic to reset the counter at the end of the sequence. > I already agreed to lend my SuperPET to Olaf so he can study the 6702 in > real. And I wouldn't mind if he replaced the real 6702 with such a > device. It seems that the 6702 is only for protection and is only used by the Waterloo disks. It may be easier to remove the protection from the disks than to build a replacement. Regards, Mike -- Mike Naberezny (mike@naberezny.com) http://6502.org Message was sent through the cbm-hackers mailing listReceived on 2012-04-12 07:00:08
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