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Data Fields
arm_cfft_radix4_instance_q31 Struct Reference

Instance structure for the Q31 CFFT/CIFFT function. More...

#include <arm_math.h>

Data Fields

uint16_t fftLen
 
uint8_t ifftFlag
 
uint8_t bitReverseFlag
 
q31_tpTwiddle
 
uint16_t * pBitRevTable
 
uint16_t twidCoefModifier
 
uint16_t bitRevFactor
 

Detailed Description

Instance structure for the Q31 CFFT/CIFFT function.

Definition at line 2027 of file arm_math.h.

Field Documentation

uint8_t bitReverseFlag

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

Definition at line 2031 of file arm_math.h.

uint16_t bitRevFactor

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

Definition at line 2035 of file arm_math.h.

uint16_t fftLen

length of the FFT.

Definition at line 2029 of file arm_math.h.

uint8_t ifftFlag

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

Definition at line 2030 of file arm_math.h.

uint16_t* pBitRevTable

points to the bit reversal table.

Definition at line 2033 of file arm_math.h.

q31_t* pTwiddle

points to the twiddle factor table.

Definition at line 2032 of file arm_math.h.

uint16_t twidCoefModifier

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

Definition at line 2034 of file arm_math.h.


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