a higher speed. These cables usually add a DB15 female connector to the drive, also known as a
game port on the PC.
Once this is installed, the drive can be connected to the ZoomFloppy in one of three ways. If you
already have a C64 cartridge plug to DB15-M cable, it attaches to the card edge at the bottom of
the ZoomFloppy. Be sure to note which side is up since the connector fits both ways. If you
don’t, it’s usually cheaper and easier to get a DB15-F to DB15-M cable. This connects to the
DB15 plug on the left side of the ZoomFloppy. Finally, if you’re building your own cable, you
can solder a 2x8 header onto connector X4.
Future support is possible for IEEE-488 floppy drives, which were produced for the PET. Either
the large GPIB plug can be soldered onto the board on the right or a 2x12 header can be added at
X6. The ZoomFloppy firmware does not yet support IEEE-488 drives.
Finally, a 2x20 expansion header can be added at X5. This maps all signals from the
microcontroller for debugging or some unknown future use.
Optional case
While it works just fine as a bare board, the ZoomFloppy was designed to be placed in a case,
Hammond part number 1591XXTSBK. This case is available from many suppliers, such as Digi-
key. You’ll have to cut at least one side of the case to allow for the connectors.
http://www.hammondmfg.com/dwg2XXS.htm
http://www.hammondmfg.com/scpg.htm
The case dimensions in inches are 4.853 wide x 3.278 long x 2.2 deep (without lid). More info
on the exact dimensions can be found on the above pages.
Windows Installation
This distribution provides Windows binaries for OpenCBM, supporting the ZoomFloppy USB
interface. The code has not been customized, so you can also install from stock OpenCBM
source code, although that procedure is a bit more complicated. It is expected that future builds
will be available directly from the OpenCBM project.
You should have gotten the installer and this manual from the following site. Do not install the
0.4.x series of binary installers from the OpenCBM website as they do not support the
ZoomFloppy.
http://www.root.org/~nate/c64/xum1541/
Below are the directions for installing OpenCBM for ZoomFloppy on Windows. Mac OS X and
Linux also work with the ZoomFloppy, but OpenCBM installation for them is not described
here.
Even if you have previously installed OpenCBM, you’ll need to install this newer version in
order to get ZoomFloppy support. Do not install an older copy of OpenCBM, such as 0.4.x, since
it does not support the ZoomFloppy.
