[sdiy] FPGA based synthesizer progress....

[Jim Patchell]

http://www.noniandjim.com/Jim/dsm1/DigitalSynthesizerModule.html

There is a photo of my setup there...plus, you can see the cats food 
dishes in the background...:-~

-Jim

Eric Brombaugh wrote:
> Jim Patchell wrote:
>> I will have to take a picture of it...it is mostly off the shelf stuff...
> 
> Please do - it sounds interesting.
> 
>> For the FPGA, I am using a Spartan3 Starter Kit with an XC3S1000 on 
>> it.  This board is available from Digilent.
>>
>> For the micro controller, I am using an Atmel ATmega2561 mounted in an 
>> STK500/501 board set.
>>
>> I made a custom board to interface between the Spartan board and the 
>> STK500.
> 
> Atmel makes good stuff - it's simple, inexpensive and there's a whole 
> lot of free development tools available. I've been interested in some of 
> the stuff based on the Processing language, (Wiring, Arduino, etc) as 
> well as the Make Controller. I wonder if you could leverage any of that?
> 
>> I still have to make the audio interface.  I purchased some SIOC to 
>> Dip conveter boards from Sparkfun and have some Crystal Semiconductor 
>> delta sigma DACs to mount on them.
> 
> I've used their DACs - I've got a simple project going which plugs into 
> the 6-pin peripheral port on most Digilent FPGA boards. Seems to work 
> pretty well:
> 
> http://members.cox.net/ebrombaugh1/synth/audiodac/index.html
> 
> Eric
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> 

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