Fw: [sdiy] Anybody using Atmel AVR?

[Tom Arnold]

On Mon, Dec 20, 2004 at 11:01:43PM +0100, Jaroslaw Ziembicki wrote:
> I built a MIDI synth module based on a AT90S8535 (2xDCO + 1st order DCF).
> I also experimented with the ATmega series and managed to get 2 DCOs and a
> 2nd order "variable state" DCF. Drawback: the sampling frequency has to be
> low,
> eg. 31,25kHz. But I find it fascinating to force such general-purpose
> microcontrollers
> to synthesize sound!

Might want to look at the Ubicom SX series chips.  Small ram and flash but
extremely fast. ( 75mips at 75mhz, and if you ask them nicely they spec some of
the SX28's at 100mhz ).  Great for DSP-like simple stuff, like 8 DCO's on a
20pin chip.

-- 
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