From: "Barry Watzman" <Watzman at neo.rr.com>
Sent: Wednesday, March 30, 2005 11:42 AM
Ok, so we've been discussing various ideas for a
universal floppy disk
controller.
I bought (E-Bay) a used Microsolutions "Backpack" external parallel port
floppy disk drive, it's a 3.5" 1.44MB drive.
Internally, it is a standard drive (with a 34-pin standard interface) and
a
floppy to parallel port interface card.
The question is -- and it's really a software question -- If I connect a
5.25" drive to the interface (using the standard 34-pin interface) will
the
device (or, perhaps more to the point, will it's drivers) work?
I believe that they actually made a 5.25" model (with a 1.2 meg drive),
but
I have not been able to find one. The Format program that comes in the
software packet has documentation suggesting that it can format a 1.2 meg
and even a 360k drive, and I'm guessing that the interface card is the
same
for the 5.25" and 3.5" models.
This might be the answer to being able to access 5.25" drives on a
"modern"
PC. It would be really cool if 22Disk would work with a drive connected
to
this thing. I plan to do some testing in the next week or so. It still
doesn't solve the eight-inch problem, however. [I know, there's a chance
that the controller could be made to work with 8" drives using a funky
cable
-- but first things first, 5.25" drives.]
22disk directly handles the FDC and ignores any devices attached as device
drivers (except as to/from MSDOS).
To use this would require figuring it out and writting all of your own
software.
I would expect it to be many times harder than making your own.
Randy
www.s100-manuals.com