On 7/13/2012 12:18 PM, Steven Hirsch wrote:
There is the very-much-finished (at least in terms of hardware)
Kryoflux. Their entire goal is to create 100% accurate imaging that can
recreate the original diskette to the last detail. They are there for
Amiga and not far behind for C64. Some read capability currently exists
for Apple (even for 800k diskettes - and in a standard PC 1.44M drive no
less!).
My understanding is they started from the Cyclone20 and improved it. However
it is not open source, is it? So I lost interest. Not because I'm a looney
leftist - rather the opposite - but because I like tinkering and don't need to
use the final device very much.
The original code mostly works. Just there are occasional error while writing
back "perfect" images of Amiga disks. And there is no special hardware - the
Atmel ARM7 running at 57(?)MHz clock is fast enough to capture the raw flux
transitions from the floppy with 40 ns resolution and send it to the PC via USB.