CMSIS DSP library

Dependents:   KL25Z_FFT_Demo Hat_Board_v5_1 KL25Z_FFT_Demo_tony KL25Z_FFT_Demo_tony ... more

Fork of mbed-dsp by mbed official

Embed: (wiki syntax)

« Back to documentation index

Transform Functions

Transform Functions

Modules

 Complex FFT Functions
 Radix-8 Complex FFT Functions
 DCT Type IV Functions
 

Representation of signals by minimum number of values is important for storage and transmission.


 Real FFT Functions
 Complex FFT Tables
 RealFFT

Functions

void arm_split_rfft_f32 (float32_t *pSrc, uint32_t fftLen, float32_t *pATable, float32_t *pBTable, float32_t *pDst, uint32_t modifier)
 end of RealFFT group

Function Documentation

void arm_split_rfft_f32 ( float32_t *  pSrc,
uint32_t  fftLen,
float32_t *  pATable,
float32_t *  pBTable,
float32_t *  pDst,
uint32_t  modifier 
)

end of RealFFT group

Core Real FFT process

Parameters:
[in]*pSrcpoints to the input buffer.
[in]fftLenlength of FFT.
[in]*pATablepoints to the twiddle Coef A buffer.
[in]*pBTablepoints to the twiddle Coef B buffer.
[out]*pDstpoints to the output buffer.
[in]modifiertwiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.
Returns:
none.

Definition at line 168 of file arm_rfft_f32.c.