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Discussion Groups | TMS320C6x | FFT again, have a problem

Technical discussions about the TI C6000 DSPs (including the c62x, c64x and c67x DSPs).

  

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FFT again, have a problem - baelroga - Oct 14 14:08:00 2002



Hi, c6x developers.

I've founded the FFT function "cfftr2.asm". It contains both C and
asm sourse, and asm is hand optimized. But TI's FFT operates by float
array, when my programm needs a FFT under a DOUBLE array.

I changed in C code float to double, but benchmark test told me about
terrible speed of such fft. I tried to optimize C code using guide
from TI, but result didn't satisfy me. My code is too slow against
TI's.
So If U have, or have seen FFT with 64 bit values, please tell me
where or let me use your library.

Real Thanks to everybody.
Evgeniy P.




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