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Re: Apple ][ using PC floppy



vladitx wrote:

P.S. My first IIe was a clone made by Multitech - the MPF-III. It has
a 40 track 1/2 height 40 track direct drive FDD with an adapter board
that converts the Apple 20 pin bus into the standard 34 pin bus. It
uses a couple of one-shots and a PAL to do the conversion.

My solution is similar, except it uses modern HD drives and media.
Everything is packed into a single CPLD (with stabilized oscillator)
which does the pulse conversions between 250 and 500kbit/sec.

I should have shown in the videos that the converting board is plugged
into the regular Disk ][ controller and it's not a slot device with
it's own firmware, etc.

You can count me in for at least one of these boards. In the interim, I'd like to try fitting it to a Xilinx Spartan 3 starter board. The FPGA is perhaps complete overkill, but I have it front of me and am getting reasonably familiar with the development tools.

Do you have this in synthesizable VHDL (preferred) or Verilog? Or, is it just a handful of logic equations at this point?

Steve