Teledisk archive format

[Keith]

Philip Pemberton wrote:
 > Chuck Guzis wrote:
 >> Certainly, any interest in floppies has to be marginal by now.
 >
 > Well, I wish you'd told me that before I started building the disc
 > analyser :)

And I wish he would have told me before I started my external usb amiga 
floppy drive controller a couple years ago. :)

 > FWIW, I'm getting perilously close to building a prototype -- the FPGAs
 > are here,

While I haven't dug into the past posts to see what exactly you are 
doing, I use a Parallax uC for my solution to create .ADF (amiga 
emulator files) from amiga formatted disks w/ a standard pc drive.

 > Analyser-wise, I've just got the write controller state machine to pass
 > the testbench in Quartus -- it's spitting out a few dire warnings and
 > the data separator / sync word detector needs a few bugs killing.

My blog has considerable detail (although spread out) about how I go 
about syncing to the data stream -- first at the 
bit-level(pulses/transitions) and then at the byte level(to the sync word)

I'd encourage you to check my blog --- everything is ad-free and open 
source --- though it needs better organization..........

http://www.techtravels.org/amiga/amigablog

high-level overview

http://www.techtravels.org/amiga/amiga.html

Schematic

http://www.techtravels.org/AFPschematic.gif

Pictures

http://www.techtravels.org/amiga/amigablog/?p=139

Hope this helps

Keith