CMSIS-DSP  
CMSIS DSP Software Library
 
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arm_cfft_instance_f32 Struct Reference

Instance structure for the floating-point CFFT/CIFFT function. More...

Data Fields

uint16_t fftLen
 
const float32_tpTwiddle
 
const uint16_t * pBitRevTable
 
uint16_t bitRevLength
 

Description

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

Examples
arm_fft_bin_example_f32.c.

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 float32_t* pTwiddle

points to the Twiddle factor table.