[sdiy] Proposed DSP board

[Tom Wiltshire]

Tim,

It looks pretty good to me. I've got one thought and one question.  
The thought is that you've only got one codec interface on the dsPIC,  
so you might be better off looking for a multichannel codec to attach  
to the one port, rather than connect more than one. But there are two  
SPI interfaces available, so maybe not. One to investigate.
The question is why the coprocessor is AVR if the DSP is a dsPIC. It  
seems to me that the AVR people won't like it because they'll have to  
learn something new to use the DSP, and the PIC people won't like it  
because they'll have to learn something new to use the interfaces.  
Have you got a good reason for this choice?

Keep up the good work.

Regards,
Tom


On 21 Jan 2009, at 18:25, Tim Ressel wrote:

> Yo,
>
> Here are the proposed features for a new DSP platform:
>
> dsPIC33f256gp710 processor
> --External RAM
> --At least 1 codec (more if feasible)
> MIDI connections
> --In, thru
> USB for downloads
> AVR coprocessor to handle MIDI, USB, and front panel duties
> --Optional with jumpers to route midi to dsPIC
>
> if you have suggestions for other features please let me know. My  
> goal is to have this in fab as soon as possible.
>
> Thanks!
>
> --TimR
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