11 Oct
2008
11 Oct
'08
11:11 a.m.
On Saturday 11 October 2008 11:59, Phill Harvey-Smith wrote:
There are a couple of problems however, most 1.44M
drives are jumpered
to operate as drive 1 only, and cannot easily be changed, this can be
fixed however by swapping lines in the cable e.g. swapping 10 and 12
will make the drive respond as drive 0.
Hence the twist in the cable...
Also depending on your system, it may require a ready
signal on Pin 34,
most 1.44M drives supply disk change on this pin, however the couple of
systems I have worked with that require this signal (Amstrad CPC,
Spectrum +3), wiring the signal permenently to ground will do the trick.
I have somewhere several of those adapters that were suppled to convert the
pin-type connectors common on 3.5" drives to the edge connector common on
floppy cables supplied for earlier drives, and some of these at least have a
jumper on them that I would guess allows for selecting this. At least I know
that it does *something* with regard to pin 34 (Curtis, let me know if you
need one... :-).
Note some of the older 1.44s may have jumpers to
change the ID, and
enable ready. I have some Teac FD-235F drives that are like this (they
have a bunch of jimpers just to the left of the steper motor),
unfortunatly the HF that you have does not.
I am going to have to look through the floppy drives I have on hand and see
which models they are and which might offer some flexibility and which
don't. :-)
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
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Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin