From: Anders Carlsson (anders.carlsson_at_sfks.se)
Date: 2006-07-01 22:14:26
Bill Degnan wrote:
> Theoretically you do not have to do anything to the drive if you swap
> a 603s for a 602s. If you use a 602s, you in effect convert a d9090
> into a d9060, and the capacity is reduced to 5MB.
The ftp index on this page says:
"The jumper J14 on the DOS board is open in the D9060, and closed in
the D9090 to select a 4-head vs. 6-head drive."
http://www.zimmers.net/anonftp/pub/cbm/firmware/drives/old/9090/index.html
Maybe that's what you are missing if you tried a 4-head ST-225 with a
D9090 drive?
Speaking of which, I see Ethan many years ago went about to disassemble
the ROMs in order to address a disk with different geometry and perhaps
be able to access a larger part (all?) of a ST-225 disk. How did it go?
--
Anders Carlsson
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