USB Universal Floppy Disk controller - test-drb@ccmp.vtda.org

14 Mar 2005

...
 From: "Philip Pemberton" <philpem at
dsl.pipex.com> ---snip---
...

   o  Reading disks 
Easy - start when you get an index pulse, then stop when you get another
pulse. I'd be tempted to make the stop pulse lag a bit though, just to make
sure there's enough overlap to be reasonably sure that you've got all of the
data. 
 You need a little flexability here. I have a machine that
is hard sectored and used 8 holes per sector.

...

    o  Writing back a disk image 
See above. 
 It does need retiming and pre-comp added back in.
Still, just a software issue. I like the DSP because
it can actually analyze the particular media used
and generate a more exacting pre-comp than even
the best controller can. This would be great for
archiving since the recreated disk can be better
than the original.
---snip---

 Go for it Phil!!!!!

Dwight