CMSIS-DSP  
CMSIS DSP Software Library
arm_cfft_instance_q15 Struct Reference

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

Data Fields

uint16_t fftLen
 
const q15_tpTwiddle
 
const uint16_t * pBitRevTable
 
uint16_t bitRevLength
 

Field Documentation

◆ bitRevLength

uint16_t bitRevLength

bit reversal table length.

◆ fftLen

uint16_t fftLen

length of the FFT.

◆ pBitRevTable

const uint16_t* pBitRevTable

points to the bit reversal table.

◆ pTwiddle

const q15_t* pTwiddle

points to the Twiddle factor table.