CompuPro floppy controller differences - test-drb@ccmp.vtda.org

10 Sep 2006

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Subject: RE: CompuPro floppy controller differences
   From: "Chuck Guzis" <cclist at sydex.com>
   Date: Sun, 10 Sep 2006 09:31:51 -0700
     To: cctalk at classiccmp.org

On 9/10/2006 at 9:13 AM Allison wrote:

 All my CCS disks are 8" I'd have to look
to see if the controller even did 
 5.25 it's been so long.  I do remember the CCS
used a banking scheme that
didn't agree with most of my systems. 
Yup, I've got samples for a CCS with 256, 512 and 1024 bytes/sector.  All
are 48 tpi, MFM. 
So do I but all mine are 8".  However having a H207 dual 8" makes it work
as the h207 has a very similar size and look as the CCS crate (long to the 
back and narrow).  As a result I've never fitted 5.25 to the CCS, no need.

I've been tempted to fit 3.5" drives to it as it would do 720/780k formats
as is off the 5.25 interface.  All I'd have to do is tweek the BIOS for 
that(2S, 80C, 512 format) and maybe tweek the formatter for 80 cylinders
and 2 sides.

Allison