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arm_cfft_radix2_instance_f32 Struct Reference

Instance structure for the floating-point CFFT/CIFFT function. More...

#include <arm_math.h>

Data Fields

uint8_t bitReverseFlag
 flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output.
uint16_t bitRevFactor
 bit reversal modifier that supports different size FFTs with the same bit reversal table.
uint16_t fftLen
 length of the FFT.
uint8_t ifftFlag
 flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform.
float32_t onebyfftLen
 value of 1/fftLen.
uint16_tpBitRevTable
 points to the bit reversal table.
float32_tpTwiddle
 points to the Twiddle factor table.
uint16_t twidCoefModifier
 twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.

Detailed Description

Instance structure for the floating-point CFFT/CIFFT function.

Definition at line 2016 of file arm_math.h.

Field Documentation

uint8_t arm_cfft_radix2_instance_f32::bitReverseFlag

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

Definition at line 2020 of file arm_math.h.

uint16_t arm_cfft_radix2_instance_f32::bitRevFactor

bit reversal modifier that supports different size FFTs with the same bit reversal table.

Definition at line 2024 of file arm_math.h.

uint16_t arm_cfft_radix2_instance_f32::fftLen

length of the FFT.

Definition at line 2018 of file arm_math.h.

uint8_t arm_cfft_radix2_instance_f32::ifftFlag

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

Definition at line 2019 of file arm_math.h.

float32_t arm_cfft_radix2_instance_f32::onebyfftLen

value of 1/fftLen.

Definition at line 2025 of file arm_math.h.

uint16_t* arm_cfft_radix2_instance_f32::pBitRevTable

points to the bit reversal table.

Definition at line 2022 of file arm_math.h.

float32_t* arm_cfft_radix2_instance_f32::pTwiddle

points to the Twiddle factor table.

Definition at line 2021 of file arm_math.h.

uint16_t arm_cfft_radix2_instance_f32::twidCoefModifier

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

Definition at line 2023 of file arm_math.h.


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