Callisto4Bootloader: arm_cfft_radix2_instance_q31 Struct Reference

Callisto4Bootloader

Data Fields
arm_cfft_radix2_instance_q31 Struct Reference

Instance structure for the Radix-2 Q31 CFFT/CIFFT function. More...

`#include <arm_math.h>`

## Data Fields

uint16_t | fftLen
uint8_t | ifftFlag
uint8_t | bitReverseFlag
const q31_t * | pTwiddle
const uint16_t * | pBitRevTable
uint16_t | twidCoefModifier
uint16_t | bitRevFactor

## Detailed Description

Instance structure for the Radix-2 Q31 CFFT/CIFFT function.

Definition at line 2005 of file arm_math.h.

## Field Documentation

## ◆ bitReverseFlag

uint8_t arm_cfft_radix2_instance_q31::bitReverseFlag

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

Definition at line 2009 of file arm_math.h.

## ◆ bitRevFactor

uint16_t arm_cfft_radix2_instance_q31::bitRevFactor

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

Definition at line 2013 of file arm_math.h.

## ◆ fftLen

uint16_t arm_cfft_radix2_instance_q31::fftLen

length of the FFT.

Definition at line 2007 of file arm_math.h.

## ◆ ifftFlag

uint8_t arm_cfft_radix2_instance_q31::ifftFlag

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

Definition at line 2008 of file arm_math.h.

## ◆ pBitRevTable

const uint16_t* arm_cfft_radix2_instance_q31::pBitRevTable

points to the bit reversal table.

Definition at line 2011 of file arm_math.h.

## ◆ pTwiddle

const q31_t* arm_cfft_radix2_instance_q31::pTwiddle

points to the Twiddle factor table.

Definition at line 2010 of file arm_math.h.

## ◆ twidCoefModifier

uint16_t arm_cfft_radix2_instance_q31::twidCoefModifier

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

Definition at line 2012 of file arm_math.h.

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

- CMSIS/arm_math.h