[sdiy] DAC....

[James Patchell]

I am still working on it...although...it is going slow.

I am thinking about changing it a bit (making it simpler) by having just a 
stereo A/D and an 8 channel D/A chip....

At 08:24 PM 6/8/2005 -0500, Ryan Williams wrote:
>great! it would be great if you are allowed to post it. I just got my 
>spartan III board about a week ago and it would be cool to see how the 
>verilog looks, especially for the delta sigma modulator.
>
>any news on that audio I/O add-on board?
>
>-ryan williams
>
>James Patchell wrote:
>>         Hey...did a bit of Synth DIY at work today...believe it or 
>> not...The project I am working on needs an audio output.  It has to be 
>> real small and low power.  It has a Cool Runner on the board...so I did 
>> up a 1st order Delta Sigma modulator in Verilog and to my surprise...it 
>> worked.  I prototyped it on my Spartan III FPGA board....hooked up a 
>> phase accumulator saw tooth oscillator to it (also implemented in 
>> verilog)...and wow....got a saw tooth out of the thing....
>>         I am trying to decide if I can post the source code on my 
>> website...technically...it doesn't belong to me :-(......
>>
>>         -Jim
>>***************************************************************
>>http://www.oldcrows.net/~patchell
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>>
>
>         -Jim
>***************************************************************
>http://www.oldcrows.net/~patchell
>
>***************************************************************