V4.0.1 of the ARM CMSIS DSP libraries. Note that arm_bitreversal2.s, arm_cfft_f32.c and arm_rfft_fast_f32.c had to be removed. arm_bitreversal2.s will not assemble with the online tools. So, the fast f32 FFT functions are not yet available. All the other FFT functions are available.

Dependents:   MPU9150_Example fir_f32 fir_f32 MPU9150_nucleo_noni2cdev ... more

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arm_rfft_fast_instance_f32 Struct Reference

arm_rfft_fast_instance_f32 Struct Reference

Instance structure for the floating-point RFFT/RIFFT function. More...

#include <arm_math.h>

Data Fields

arm_cfft_instance_f32 Sint
 Internal CFFT structure.
uint16_t fftLenRFFT
 length of the real sequence
float32_t * pTwiddleRFFT
 Twiddle factors real stage.

Detailed Description

Instance structure for the floating-point RFFT/RIFFT function.

Definition at line 2290 of file arm_math.h.


Field Documentation

uint16_t fftLenRFFT

length of the real sequence

Definition at line 2293 of file arm_math.h.

float32_t* pTwiddleRFFT

Twiddle factors real stage.

Definition at line 2294 of file arm_math.h.

Internal CFFT structure.

Definition at line 2292 of file arm_math.h.