Questions about Central Point Deluxe Option board

From: Peter C. Wallace <pcw_at_mesanet.com>
Date: Sun Jun 30 12:21:27 2002

On Sat, 29 Jun 2002, Fred Cisin (XenoSoft) wrote:

> Wouldn't it be EASIER to just design a circuit to do the job, rather than
> trying to trace theirs?
>
> It is NOT that complicated!
>
> The existing FDC deals with drive select, seeking to track, etc.
> Then the add-on board (such as option board, Apple Turnover, Catweasel,
> etc.) takes the pulses on the data line and stores them as bits. The rest
> is software.



        Actually it seems to me that if you wanted to create a universal
floppy controller, the whole FDC + bus interface would fit easily in a <$20
FPGA (with maybe some small amount of external SRAM). This would also have the
advantage that the whole hardware configuration could be changed by
downloading it from the host if needed for more exotic floppy formats...

Peter Wallace
Received on Sun Jun 30 2002 - 12:21:27 BST