20 Jan
2023
20 Jan
'23
7:16 p.m.
On 1/20/2023 3:48 AM, Christian Corti via cctalk wrote:
On Thu, 19 Jan 2023, Jim Brain wrote:
Agreed, but what's your point? My response was stating that the
"Weazle" things and the associated SW can read formats that the IBM FDC
and imageDisk can't, so they are different and GW and it's relations
have more capabilities.
Jim
--
Jim Brain
brain(a)jbrain.com
www.jbrain.com
GW can do the same, but can also handle GCR
encoded disks, the Amiga
disks noted above, and it might be able to do older Apple Mac 720K disks
All these Weazle thingies are just pulse timing samplers plus floppy
drive controllers.
The interpretation of the timing information is separately done in
software, with the hazzle of implementing some kind of software PLL.
Been there, done that with my own Linux software written for a
modified version of the MFM hard disk emulator running on my Beagle
Bone White.
The setup is even able to write such images back to disk (I have
successfully used it to create Apple 2 GCR and Amiga MFM disks).
Christian