Re: Floppy reading at flux level, WAS: Re: Tips for making Twiggy images

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Hi Simon,

El 17/2/15 a las 10:04, Simon Claessen escribió:
>
>
> On 16-02-15 20:17, Natalia Portillo wrote:

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>> 
>> Hi Simon,
>> 
>> I'm a programmer, I need an electronics.
>> 

>> Anyone here up to the challenge?
>> 

Hurray!

> You can even use a beaglebone black as a platform. But electronics
> is

I have TI LaunchPad, Raspberry Pi B, Raspberry Pi B+, Raspberry Pi 2 and Banana Pi. Can you make something for that?

I've heard that the Rasps don't bring analog input and using I2C ADCs get a shitty slow bandwidth (like 200Hz).

The LaunchPad is a lot less powerfull but has about 20 analogue inputs, and the Banana seems to be software selectable, dunno if can bring analogues.

> not the problem. Detecting the right format of a floppy is. And
> knowledge of different floppy formatting algorythms like FM, MFM,
> MMFM, GCR and such.

Heh, those are documented, piece of cake.

> The point where kryoflux got it right is that the decoding is done
> on the host computer and the device merely is a dual channel
> digital sampler (clock and data pulses)

It's a ~20Mhz ARM, something faster can be independent, at least to save the flux files. Anything can be done.

> i can cook up a decent adapter board in no time to stick as a cape
> on the beaglebone.
If you can cook for my SBCs/DBs something that does not require to solder QFPs or SMDs, I can start the coding in about two weeks.

Regards,
Natalia Portillo
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