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Data Fields
arm_cfft_radix2_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
 
q15_tpTwiddle
 
uint16_t * pBitRevTable
 
uint16_t twidCoefModifier
 
uint16_t bitRevFactor
 

Detailed Description

Instance structure for the Q15 CFFT/CIFFT function.

Definition at line 1948 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 1952 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 1956 of file arm_math.h.

uint16_t fftLen

length of the FFT.

Definition at line 1950 of file arm_math.h.

uint8_t ifftFlag

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

Definition at line 1951 of file arm_math.h.

uint16_t* pBitRevTable

points to the bit reversal table.

Definition at line 1954 of file arm_math.h.

q15_t* pTwiddle

points to the Sin twiddle factor table.

Definition at line 1953 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 1955 of file arm_math.h.


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