On 7/21/2014 12:13 PM, Gerrit Heitsch wrote: > On 07/21/2014 07:59 AM, Jim Brain wrote: >> On 7/19/2014 3:42 AM, Gerrit Heitsch wrote: >>> >>> I get the strangest ideas while at the public pool doing laps... >>> >>> Now that we have the ROM of the 6500/1 in the VC-1520 dumped, >>> disassembled and analyzed, shouldn't it be 'relatively' easy (*) to >>> build a 100% compatible replacement using one of the Atmel Atmega with >>> enough I/O pins? The Atmega16 comes to mind here. 16 KB flash and 1 KB >>> RAM should be more than enough. The pinout is different, but that >>> would be a purely mechanical problem. >>> >>> (*) for people who know that controller well enough >>> >>> Gerrit >>> >>> >>> >>> Message was sent through the cbm-hackers mailing list >> I am sure it's not a huge challenge, but what other cool features should >> the 1520 have :-) That would seem to be a question worth considering? > > Hm, I could see someone using a properly programmed Atmega16 in a > VIC-1520 to be able to use it again. Is this a problem? In the US, at least, people can't seem to give working 1520 units away. I pawned a few off a few years ago, but it was not without difficulty. If there is a need for the 1520, it's for that funky gear that always breaks. Academically, it's possible, but there's little demand or challenge. That's why I asked for new features, as that might make it a challenge. > But I'm not sure if additional commands would be useful. Even if > someone is still using a 1520 in a production environment, the > software would only know about the original command set and font. They were a toy in the 1980's, so I seriously doubt anyone used one in prod. I thought adding a few more commands might entice people to dig the unit out and play with it. > > And for demonstration purposes on an exhibition, the original commands > are good enough. > > Gerrit > > > > Message was sent through the cbm-hackers mailing list Jim -- Jim Brain brain@jbrain.com www.jbrain.com Message was sent through the cbm-hackers mailing listReceived on 2014-07-21 18:01:37
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