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Hello all,



I try to run a spectrum analyzer for Winamp using Nexys2 board and PmodAD1 from DIGILENT.
If anyone has any idea and could help me is welcome.


Thank you.

Hi,

Have a look at http://ec2-122-248-210-243.ap-southeast ... .php/SPDIF if you want to avoid that whole messy D to A stuff (at least for proof of concept).

I also have a project that plays back 16bit stereo data from the nexys2's onboard flash through dual-1bit DACs. You could use that for the initial testing / prototyping.

Also look at http://www.beis.de/Elektronik/DPLCM/DPLCM.html if S/PDIF interests you - after all your PC's motherboard might have an optical, coax or TTL audio output.

Have a look at this thread http://forums.xilinx.com/t5/Virtex-Fami ... td-p/20659 for details on FFT IP cores and so on - the most useful being the IP core's datasheet http://www.xilinx.com/support/documenta ... 8_xfft.pdf.

I guess you are probably looking to use the VGA output of the Nexys2 to display the FFT data.... It sounds like an interesting project!

Mike