Instance structure for the floating-point RFFT/RIFFT function. More...
Data Fields | |
uint32_t | fftLenReal |
uint16_t | fftLenBy2 |
uint8_t | ifftFlagR |
uint8_t | bitReverseFlagR |
uint32_t | twidCoefRModifier |
const float32_t * | pTwiddleAReal |
const float32_t * | pTwiddleBReal |
arm_cfft_radix4_instance_f32 * | pCfft |
Instance structure for the floating-point RFFT/RIFFT function.
uint8_t bitReverseFlagR |
flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output.
uint16_t fftLenBy2 |
length of the complex FFT.
uint32_t fftLenReal |
length of the real FFT.
uint8_t ifftFlagR |
flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform.
arm_cfft_radix4_instance_f32* pCfft |
points to the complex FFT instance.
const float32_t* pTwiddleAReal |
points to the real twiddle factor table.
const float32_t* pTwiddleBReal |
points to the imag twiddle factor table.
uint32_t twidCoefRModifier |
twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.