josephoswaldgg@hotmail.com wrote:
For a dongle to work, you still need the equivalent of a Woz machine for your microcontroller to talk to the Disk II, and you need enough RAM to store a sector or a track, and enough CPU to de-nibblize or nibble-analyze if you want to handle non-standard disks.
You can build the basic Woz machine with a shift register and a prom. As mentioned before, the access timing is critical, but you don't need to use a 6502 - any other controller will do the same job.
There are many microcontrollers with USB, and at least the 8051 based should have enough RAM for the de-nibbelizer.
Patrick