for Amiga 1200, Amiga computers with Zorro slots, PCs with ISA slots
The Catweasel is a universal floppy disk controller working with standard
PC disk drives. The controller is able to work with almost any floppy disk format
that you can find a suitable drive for (usually 3.5" and 5.25" drives).
The Catweasel software is under continuous development since 1996. Here is
the current list of supported floppy disk formats (valid for all Catweasels,
Amiga and PC alike):
- all PC formats (180K to 1440K)
- Amiga DD and HD formats (incl. 5.25")
- Atari 9, 10 and 11 sector disks
- Macintosh 720K, 800K, 1440K (DD, GCR, HD)
- Commodore 1541/1571/1581
- XTRA high density with 2380 KByte per disk
- Nintendo copy station 1600 KB format
- Atari 8-bit (all MFM formats)
- Apple ][ disks (Apple DOS 3.3 or later)
- more 8-bit formats in development
Elaborate error detections algorithms allow to read even very old disks that
cannot be read by their original disk drives.
The Catweasel is able to control two disk drives which can be of different
Catweasel MK2 for Amiga 1200 and Amiga 4000
The easiest way to provide your Amiga with a high density drive! Compared to
a usual Amiga HD drive, the Catweasel drives are up to 2.6 times faster (this
peak performance being achieved working with 1.44 MB PC disks). But the
Catweasel's native Amiga HD disk performance is no less impressive, a
1760 KB disk can be read in 50 seconds!
The Catweasel drivers are system friendly, ReOrg, Shapeshifter, Fusion,
PCx, Frodo, CrossDos and CrossMac work happily together with Catweasel
There are two ways the Catweasel Mk2 can be connected: In Amiga 1200
computers, it is connected to the clock port, in Amiga 4000 computers
the IDE port is being used. Neither has any adversary effect on the
computer, the Amiga 1200 can still make use of real time clocks on
memory expansions or accelerator cards, the Amiga 4000 IDE controller
can still be used with two IDE drives without speed penalty.
The Catweasel Mk2 comes with the required cables and a comprehensive
software package. The software package even contains a file system for
Commodore 8-bit disks, so single files can be transferred from/to
1541 floppies (besides d64 images that can be read and written from/to
Catweasel ZII MK2
The Catweasel Zorro version is a combination of two Individual Computers
and Catweasel MK2 in one!
Catweasel ISA (PC)
The ISA version of the Catweasel controller comes with MS-DOS software.
This software is not exactly newbie-friendly, it is in fact rather
intended to be used by geeks only. ;-) The MS-DOS software is able
to create images of all the disk formats mentioned above, but writing
to disk is not possible (the Linux drivers for the Catweasel ISA
are however able to write to disk). The Catweasel ISA only needs
I/O address space, no DMA or IRQ required.