arm_rfft_instance_f32 Struct Reference

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

#include <arm_math.h>

Data Fields
uint32_t	fftLenReal
uint16_t	fftLenBy2
uint8_t	ifftFlagR
uint8_t	bitReverseFlagR
uint32_t	twidCoefRModifier
float32_t *	pTwiddleAReal
float32_t *	pTwiddleBReal
arm_cfft_radix4_instance_f32 *	pCfft

Detailed Description

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

Definition at line 2208 of file arm_math.h.

Field Documentation

uint8_t bitReverseFlagR

flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output.

Definition at line 2213 of file arm_math.h.

uint16_t fftLenBy2

length of the complex FFT.

Definition at line 2211 of file arm_math.h.

uint32_t fftLenReal

length of the real FFT.

Definition at line 2210 of file arm_math.h.

uint8_t ifftFlagR

flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform.

Definition at line 2212 of file arm_math.h.

arm_cfft_radix4_instance_f32* pCfft

points to the complex FFT instance.

Definition at line 2217 of file arm_math.h.

float32_t* pTwiddleAReal

points to the real twiddle factor table.

Definition at line 2215 of file arm_math.h.

float32_t* pTwiddleBReal

points to the imag twiddle factor table.

Definition at line 2216 of file arm_math.h.

uint32_t twidCoefRModifier

twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.

Definition at line 2214 of file arm_math.h.

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The documentation for this struct was generated from the following file:

• C:/Users/Torsten/Documents/Eclipse_WS2/STM32F769IDiscovery/CMSIS/core/arm_math.h