Callisto4Bootloader: arm_cfft_radix4_instance_q15 Struct Reference

Callisto4Bootloader

Data Fields
arm_cfft_radix4_instance_q15 Struct Reference

Instance structure for the Q15 CFFT/CIFFT function. More...

`#include <arm_math.h>`

## Data Fields

uint16_t | fftLen
uint8_t | ifftFlag
uint8_t | bitReverseFlag
const q15_t * | pTwiddle
const uint16_t * | pBitRevTable
uint16_t | twidCoefModifier
uint16_t | bitRevFactor

## Detailed Description

Instance structure for the Q15 CFFT/CIFFT function.

Definition at line 1979 of file arm_math.h.

## Field Documentation

## ◆ bitReverseFlag

uint8_t arm_cfft_radix4_instance_q15::bitReverseFlag

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

Definition at line 1983 of file arm_math.h.

## ◆ bitRevFactor

uint16_t arm_cfft_radix4_instance_q15::bitRevFactor

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

Definition at line 1987 of file arm_math.h.

## ◆ fftLen

uint16_t arm_cfft_radix4_instance_q15::fftLen

length of the FFT.

Definition at line 1981 of file arm_math.h.

## ◆ ifftFlag

uint8_t arm_cfft_radix4_instance_q15::ifftFlag

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

Definition at line 1982 of file arm_math.h.

## ◆ pBitRevTable

const uint16_t* arm_cfft_radix4_instance_q15::pBitRevTable

points to the bit reversal table.

Definition at line 1985 of file arm_math.h.

## ◆ pTwiddle

const q15_t* arm_cfft_radix4_instance_q15::pTwiddle

points to the twiddle factor table.

Definition at line 1984 of file arm_math.h.

## ◆ twidCoefModifier

uint16_t arm_cfft_radix4_instance_q15::twidCoefModifier

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

Definition at line 1986 of file arm_math.h.

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

- CMSIS/arm_math.h