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FFT real signal

Deutshein Deutshzwei
Intellectual 815 points
Other Parts Discussed in Thread: FFTLIB, 66AK2H06, 66AK2H12, 66AK2E05, TMS320C6674, TMS320C6671, TMS320C6670, TMS320C6678, TMS320C6672
FFT only for the real signal с66 (to speed up the calculation time)
is there a library function?
  • 0
    TI__Guru* 81335 points

    FFTLIB supports real and complex inputs. Please refer below Link to download.

  • 0 in reply to Raja
    Intellectual 815 points

    in the description it says that the library is suitable for the following devices:

    66AK2E02  66AK2E05  66AK2H06 66AK2H12

    TMS320C6670 TMS320C6671 TMS320C6672 TMS320C6674 TMS320C6678

    Library can be used on the C6657 ?

  • 0 in reply to Deutshein Deutshzwei
    TI__Guru* 81335 points
    Hi,
    This is supported on all c66x based DSP's. Yes, this library can be used with c6657. Thank you.
  • 0 in reply to Raja
    Prodigy 20 points
    Hi, i need an information regarding multicore dsp + arm keystone 2 benchmarks ...
    For FFT computation this device takes how much duration to do process?
  • 0
    Prodigy 20 points

    How can i know the FFT computational time for different points to this Keystone multicore DSP?Anybody knows how to get the benchmarks related to FFT ?

  • 0 in reply to user4536885
    TI__Guru* 81335 points
    We recommend you to create new thread for the new queries. Please do not follow up on old threads because it gets less attention than new.

    Thank you.
  • 0 in reply to Raja
    Prodigy 30 points

    Hi !

     

    I would need a real2complex-FFT and a complex2real-IFFT for 32bit-FIXPOINT with in IN-PLACE-Transformation for C66x. Is it content of any library ?

    If not could I get the Assembler-sources of the following functions ?

    void DSP_fft32x32 (
        const int * restrict ptr_w,
        int npoints,
        int * restrict ptr_x,
        int * restrict ptr_y
    );

    void DSP_ifft32x32 (
        const int * restrict ptr_w,
        int npoints,
        int * restrict ptr_x,
        int * restrict ptr_y
    );