[sdiy] Digital VCA

[Dan Snazelle]

Sent from my iPhone

On Aug 27, 2011, at 8:12 PM, Matthew Smith <matt at smiffytech.com> wrote:

> Quoth David G Dixon at 28/08/11 09:24...
> ...
>> I know.  I just really like the idea of digitally-controlled analog
>> circuits, especially ones that are as reliable and idiot-proof as that
>> particular VCA.
> 
> Well, you'll have two test-cases to work with :-)
> 
> I'll actually have one of the ADSR/LFOs (building two side-by-side) feeding CV into your VCA, the other feeding CV into the Korgasmatron - so both of your designs will be getting a workout from digital controllers.
> 
> And THIS is what I'm trying to achieve. Whilst I *could* do everything in an FPGA, I want to create a true hybrid, where digital, pure analogue, and analogue/digital modules can be put together in a mix'n'match arrangement.
> 
> By the way, for those interested in the microcontroller side of things, the ADSR/LFO prototypes are using Atmel ATMega128s. Long-term, I will probably be moving to Freescale MC9S08AC128 parts instead. Whilst the specifications are similar, the Freescale part has twice the ADC channels for one third the cost - plus about 16 more IO pins.
> 
> Cheers
> 
> M
> 
> -- 
> Matthew Smith
> 
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Can the freescale part run similar code?