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arm_rfft_instance_q31 Struct Reference

Instance structure for the Q31 RFFT/RIFFT function. More...

#include <arm_math.h>

Public Attributes

uint8_t bitReverseFlagR
uint32_t fftLenReal
uint8_t ifftFlagR
const arm_cfft_instance_q31pCfft
uint32_t twidCoefRModifier

Detailed Description

Instance structure for the Q31 RFFT/RIFFT function.

Definition at line 2289 of file arm_math.h.

Member Data Documentation

◆ bitReverseFlagR

uint8_t arm_rfft_instance_q31::bitReverseFlagR

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

Definition at line 2293 of file arm_math.h.

◆ fftLenReal

uint32_t arm_rfft_instance_q31::fftLenReal

length of the real FFT.

Definition at line 2291 of file arm_math.h.

◆ ifftFlagR

uint8_t arm_rfft_instance_q31::ifftFlagR

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

Definition at line 2292 of file arm_math.h.

◆ pCfft

const arm_cfft_instance_q31* arm_rfft_instance_q31::pCfft

points to the complex FFT instance.

Definition at line 2297 of file arm_math.h.

◆ pTwiddleAReal

q31_t* arm_rfft_instance_q31::pTwiddleAReal

points to the real twiddle factor table.

Definition at line 2295 of file arm_math.h.

◆ pTwiddleBReal

q31_t* arm_rfft_instance_q31::pTwiddleBReal

points to the imag twiddle factor table.

Definition at line 2296 of file arm_math.h.

◆ twidCoefRModifier

uint32_t arm_rfft_instance_q31::twidCoefRModifier

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

Definition at line 2294 of file arm_math.h.

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

autogenerated on Sun Feb 28 2021 03:18:02