22 Sep
2014
22 Sep
'14
7:29 a.m.
On 09/21/2014 08:35 PM, Ali wrote:
I have both a CompatiCard II and a CC IV. My plan
actually was to use
the CC II on a 5160 system which I have the top open all the time. As
I understand it the CC II should work as a secondary FDC in the 5160
without issues. I was going to setup the 8" drive as a 3rd FDD. Does
that sound right or am I setting myself up for disappointment?
Anything I need to watch out for? TIA.
Ali,
The point I was trying to make about the CC I and II is that the
operation of the density select register is completely unknown to
utilities such as ImageDisk, since it's in a non-conventional place
(IIRC, if the controller base port address is 0x3f2, the density select
register is 0x7f2--and the meaning of the register bits themselves is
different. 22Disk can handle the controller if you indicate it in the
DISKETTE.CFG file, but it--and Microsolutions own products and drivers
are the only other programs that do.
Also, to your list of controllers, don't forget the XT-FDC project over
at Erik's Vintage Computer Forum. There are PCBs available--and that
one even has a 50-pin header for connecting 8" drives.
--Chuck