CMSIS-DSP
Version 1.10.0
CMSIS DSP Software Library
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Instance structure for the Q15 CFFT/CIFFT function.
Data Fields | |
uint16_t | fftLen |
uint8_t | ifftFlag |
uint8_t | bitReverseFlag |
const q15_t * | pTwiddle |
const uint16_t * | pBitRevTable |
uint16_t | twidCoefModifier |
uint16_t | bitRevFactor |
uint8_t bitReverseFlag |
flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output.
uint16_t bitRevFactor |
bit reversal modifier that supports different size FFTs with the same bit reversal table.
uint16_t fftLen |
length of the FFT.
uint8_t ifftFlag |
flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform.
const uint16_t* pBitRevTable |
points to the bit reversal table.
const q15_t* pTwiddle |
points to the twiddle factor table.
uint16_t twidCoefModifier |
twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.