C55x DSPLIB CFFT support for 4096 points.

Mark Mckeown said:

Hi Frangline,

Yes, the C55x DSPLIB is capable of computing 4096-pt CFFT if the DSP Library is rebuilt with the 4096-pt twiddle table (twid4096.asm).

See http://processors.wiki.ti.com/index.php/DSPLIB#Can_the_DSPLIB_implementation_of_FFT_algorithms_support_2048_point_complex_FFTs.3F

How to rebuild the DSPLIB: http://processors.wiki.ti.com/index.php/DSPLIB#How_can_I_rebuild_the_DSPLIB_v2.40.00_library_for_a_newer_CPU_rev._3.x.3F

Hope this helps,
Mark

Hi Mark.

I was looking for 32 bit FFT here. The twid4096.asm file is for 16 bit FFT. Where can I find the twiddle table for 32 bit 4096 point FFT?

Thanks in Advance

Nagaraj