TMS320F28335: TMS320F28335 CFFTSIZES

Frank Lee96

Intellectual 830 points

Part Number: TMS320F28335

I want to know the max value of CFFTSIZES can be in TMS320F28335.Does it support 4096 points CFFTSIZES?

Waiting online.

Best regards!

over 8 years ago

0 Baskaran Chidambaram over 8 years ago

TI__Genius 17370 points

Hello,
I am writing to let you know that a C2000 team member has been assigned to this post and should be answering shortly.

Regards
Baskaran

0 Richard Poley over 8 years ago in reply to Baskaran Chidambaram

TI__Mastermind 27200 points

Frank,

The CFFT library supports sizes up to 1024. The author of the library is no longer with this group, but it's pretty clear from the header file comments that 1024 is the maximum size. You could develop your own CFFT for a larger size, but the sine/cosine tables and twiddle factors would have to change. We have not done that in the C2000 group to date so I regret there is no material to pass on.

Regards,

Richard

0 Frank Lee96 over 8 years ago in reply to Richard Poley

Intellectual 830 points

Richad,
Your meaning is that the TMS320F28335 supports 4096 points CFFT or more? If I change the the sine/cosine tables and twiddle factors to achieve my idea,how to do with that?
Best regards,
Frank

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TMS320F28335: TMS320F28335 CFFTSIZES