Well, there are DEFINITELY 6526 chip(s) in there. Hmmm... you know, considering the fact that the A000 BASIC ROM has like 4K of room at the back end (at least in the 128K version...), this might be a very interesting future project. Are there any timing issues in the CBM-II machines as there are in the 64/VIC that might make this impossible? Surely someone has tried this though, if it were that simple. - Bo -----Original Message----- From: owner-cbm-hackers@dot.tml.hut.fi [mailto:owner-cbm-hackers@dot.tml.hut.fi]On Behalf Of Professor Dredd Sent: Monday, April 23, 2001 5:40 PM To: cbm-hackers@dot.tml.hut.fi Subject: RE: IEC CBM 720 I don't know anything about the 710/720, so its difficult to answer. What drives the datasette on this computer? If its a 6522 or 6526, then presumably the same hardware MIGHT be used to drive an IEC buss. Once the necessary connections are made between the I/O chip and the DIN socket, you would have to write your own driver for the port. This would of course allow one to connect 1541 and 1525 type devices. That would be cool ;) --- Bo Zimmerman <bo@zimmers.net> wrote: > Well, I can't be certain, of course. I've seen a > whole lot of hacks, > though, and if this is one, it is a very good one. > Especially in the > mounting of the ports in the back. > > Either way, as the picture demonstrated, a set of > three wires run from the > IEC ports to the datasette port. This set of wires > has been cut cleanly, > rendering them useless. > > My question is more this: Whether it was Commodore, > or a previous owner, > what was this person up to? Is such a hack even > POSSIBLE in a 710/720? Can > Commodore Serial disk drives be driven from the > lines in the datasette > port?!?! ===== Get a FREE 6Mb webmail box from go6502! - http://www.geocities.com/profdredd As low as 2.99% Intro APR from NextCard! - http://www.nextcard.com/index6.html?ref=aff0074521 PayPal is the FAST FREE and SECURE way to send money! - https://secure.paypal.x.com/refer/pal=profdredd%40yahoo.com __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/ - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi. - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
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