TMS320C6678: Mismatching of FFT results with Matlab

S Siddiqui

Intellectual 385 points

Part Number: TMS320C6678

Hello,

FFT results mismatching observed while implementing FFT using DSPF_SP_fftSPxSP function of DSPLIB.

For testing , Input data used is a 50Hz sine wave sampled at 1000Hz.

Regards

over 8 years ago

0 Yordan Kovachev over 8 years ago

TI__Guru**** 161600 points

Him

I've notified the design team. Their feedback will be posted here.

In the mean time, can you post what software are you using?

Best Regards,
Yordan

0 S Siddiqui over 8 years ago in reply to Yordan Kovachev

Intellectual 385 points

code composer studio v5.0 on window xp

0 ran35366 over 8 years ago in reply to S Siddiqui

TI__Genius 12805 points

Hi S Siddiqui

I had some other questions regarding the results of the FFT functions. So please look first at e2e.ti.com/.../1982728 and see if this might be your case. There are two questions about two scenarios.
If you have the same issue, you have the answers there. If not, get back to me and we will work together

Best regards

Ran

Processors

Processors forum

TMS320C6678: Mismatching of FFT results with Matlab