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Re: More Information for MFM Drives



David Wilson wrote:

Exegete <millers@noneofyourbusiness.com> writes:

There are, at present, no USB adapters for any model of the II, and I've heard of none under development (I wonder if any II could even handle the high rate of data that USB can kick around). So your "goal" has, at present no Apple II application, does it?


Just because USB can run at 12Mb/s does not mean that the Apple // would have
to pump data at that rate (which is only 1.5MB/s). USB also has a 1.5Mb/s
rate used by keyboards and mice (187.5kB/s) that an Apple // would have
no trouble keeping up with. Besides, any sensible design would use an on board
uP to handle the USB protocol rather than trying to get the 65x02 to handle it.

Making an Apple // into a USB target would probably be easier than making
it into a host.


So it would be possible to do a USB card for the II, is that what you are saying? Granted that that is the case, since there aren't any yet, of what use is his idea of working on getting MFM drives to talk to the nonexistant USB card on a II? Or is this a case of doing the hard part (MFM to USB) first, since a USB card would be a snap for the II?

Roy


--
David Wilson  School of IT & CS, Uni of Wollongong, Australia