Re: Reading non-MFM disks in PC with a "small adapter"

From: Hársfalvi Levente (
Date: 2001-11-20 17:03:12


Nicolas Welte wrote:
> I don't know if there are any alignment problems (i.e. the head not being
> centered correctly on the tracks), but there are for sure problems with the
> head stop, because there is an offset of maybe three tracks between the two
> heads, and it is mechanically impossible for the upper head to read the first
> few tracks of a flipped disk.

Yep, meanwhile I read the drive hack hint in the Catweasel manual you

Hmmm... Putting a LED beside the photo resistor... Checking 'MOTOR if
it's active, and if it is, and there's no 'INDEX, start flashing, does
it sound like a good idea? ;-)

Also... A really weird idea has popped up in my mind, regarding the
100tpi / 96 tpi problem. Pulsing 'STEP by some 100kHz, and rotating a
8-chain PWM bitmask on the 'DIR pin, hmmm? ;-)

(I know different drives would react differently, and it would also need
additional attention of the software, but still this should be the only
possibility to make it (if at all)).


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