At 02:09 PM 11/10/2007, you wrote:
All:
Now that the weather in the Northeast is cold again, I?m picking up on
some old projects, among which is the floppy system for my IMSAI.
Here?s what I want ? a 5.25? dual-disk system running CP/M 2.2 (my IMSAI
has a Z80 board in it).
Here?s what I have ? plenty of 5.25? TM100 and equivalent drives, a
CompuPro Disk 1 and an SD Sales Versafloppy (not II). The Versafloppy
specifies SA400/450, but I think other 5.25? drives will work.
Here?s what I don?t have ? a working disk image for either of the above.
Dave Dunfield has a disk image for a Disk 1A but it?s from an 8? original.
Also, the ComprPro controller seems to require modifying the IMSAI front
panel to disable it (by removing the ground on pin 20 IIRC). I really don?t
want to modify the front panel. I browsed the Versafloppy manual quickly and
it doesn?t seem to require modifications to the host machine.
Given this, does anyone have a Versafloppy image I can use?
Alternatively, I?d gladly trade what I have for a board/disk that would
work. I would even consider trading other stuff for it, including the 8?
drive system I have that is the bane of my existence.
I have some of those cards too, but no images either.
I hope you have more luck than me. I'm about to
get out the big guns and hook up a logic analyzer
to the disk drive. It doesn't seem to be reading sectors reliably. : (
Grant