Re: Tips for making Twiggy images

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Hi Simon,

El 16/2/15 a las 18:32, Simon Claessen escribió:
>
>

>>> But you should think about one thing, that is, how much can you
>>> read talking to the floppy controller, and how much it is
>>> really stored in the disk. We'll need something like DiscFerret
>>> to really know.
>>> 
>>> Really why haven't someone yet taken a cheap ARM Msomething and
>>> made one that works in a simple development board, like, say,
>>> TI LaunchPad I don't know.
>>> 
>>> 

Philosophically I'm against Kryoflux, being closed source and by a team with too much of an ego is against the very definition of museum.

And in my museum I have a quite huge collection of floppies waiting for a better solution.

> intention to grab all the floppie in out collection of the
> computermuseum at hack42.nl that being 2,5", 3", 3.5" 5.25" 8" in
> all kind of flavours. the Kryoflux works on the lowest level a
> drive can generate as long as it can direct the heads though the
> pinout on the drive, but a simple addon circuit to twiggy drives
> should be possible. decoding the flux transitions is another thing
> though...

Decoding GCR should be quite easy. The sony GCR format is well documented afaik. Making the kryoflux work with the non-shugart bus, that's another thing, as its firmware is closed source you depend on them for that.

If you can get to solder SMD and CPUs on boards, I suggest you DiscFerret. While Phil is not selling it anymore, it is wholly opensource, so anyone with the equipment (sadly I don't have) can build one by itself and enhance the firmware to talk to new buses. Also, it's more capable than KryoFlux, having been used to succesfully read MFM and RLL hard disks over a ST506 bus.

http://discferret.com/wiki/DiscFerret

I would love to get my hands on one of those.

Regards,
Natalia Portillo

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