DSP News?

Created Tue, 30 Jul 2013 14:38:52 +0000 by jmlynesjr

jmlynesjr

Tue, 30 Jul 2013 14:38:52 +0000

As most DSP posts I have read are at least a year old, is there any current news on support for DSP/FFT/IIR/FIR from within the chipKIT family?

Boards, libraries, sketches, projects.....

Thanks, James

majenko

Tue, 30 Jul 2013 15:50:23 +0000

As there is no DSP in a pic32 chip, any DSP support would be purely software based.

So, at best it'd be either a library to support an external DSP chip, or a library with DSP algorithms in it.

TBH, if I need more than a simple FFT (and the easily portable integer FFT algorithm you can find easily with Google will do the job) then I tend to use a dsPIC, which as it's not a pic32 won't (I shouldn't think, anyway) ever be a member of the chipKIT family.

caroper

Tue, 30 Jul 2013 17:42:19 +0000

ABoards, libraries, sketches, projects.....

Have you seen this:

[url]http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2680&dDocName=en552827[/url]

I have not yet tried using it in MPIDE but it should work

Cheers Chris

jmlynesjr

Wed, 31 Jul 2013 15:14:55 +0000

Thanks for the updates.

Yes, figured it would be a software library and hadn't seen the microchip page until now. Guess someone could do a dsPIC shield and include a fast/wide ADC. This stuff is being done at IF frequencies in software define radios.

Thought that Ten-Tec would have to be doing some audio range filter processing in their UNO32 implementation.

James