CMSIS-DSP
Version 1.8.0
CMSIS DSP Software Library
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Instance structure for the fixed-point CFFT/CIFFT function.
Data Fields | |
uint16_t | fftLen |
const q31_t * | pTwiddle |
const uint16_t * | pBitRevTable |
uint16_t | bitRevLength |
uint16_t arm_cfft_instance_q31::bitRevLength |
bit reversal table length.
uint16_t arm_cfft_instance_q31::fftLen |
length of the FFT.
const uint16_t* arm_cfft_instance_q31::pBitRevTable |
points to the bit reversal table.
const q31_t* arm_cfft_instance_q31::pTwiddle |
points to the Twiddle factor table.