[sdiy] New synth DIY site ?

[Neil Johnson]

Magnus,

> > compared to a single PIC/AVR and two DACs this is a BIG/Complex circuit.
> You've totally missed the point. Finally we can LOOSE those f**king
> MPUs!
> Enjoy the simplicity of pure logic! ;O)

Actually, one could view the *discrete* circuit as just a specialised
processor, optimized down to the minimum required to achieve the desired
functionality.

Put another way, an MPU is "pure logic" that steps through a user-defined
state machine.  Nothing more, nothing less.

Its not really "pure logic" -- it is just a physical interpretation of
logical rules (I get too much logic from the theory boys at the lab).
And its not really digital either, just analogue that saturates.  DRAMs
are better -- at least they have those nice little sense amps doing it
properly, ie. amplifying signals and storing charge on dinky little
capacitors.

Speaking of which, I remember seeing a demo once at Brighton Polytechnic
(before the politico's decided to the mess around and it became a
University) of a DRAM with the top shaved off, used as a cheap monochrome
CCD -- charged up the capacitors, then read out the bits, any capacitors
exposed to light dissipated their charge faster than normal.  Cool!!

Cheers,
Neil

--
Neil Johnson :: Computer Laboratory :: University of Cambridge ::
http://www.njohnson.co.uk          http://www.cl.cam.ac.uk/~nej22
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