Instance structure for the Q31 RFFT/RIFFT function. More...
#include <arm_math.h>
Public Attributes | |
| uint8_t | bitReverseFlagR |
| uint32_t | fftLenReal |
| uint8_t | ifftFlagR |
| const arm_cfft_instance_q31 * | pCfft |
| q31_t * | pTwiddleAReal |
| q31_t * | pTwiddleBReal |
| uint32_t | twidCoefRModifier |
Instance structure for the Q31 RFFT/RIFFT function.
Definition at line 2289 of file arm_math.h.
| uint8_t arm_rfft_instance_q31::bitReverseFlagR |
flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output.
Definition at line 2293 of file arm_math.h.
| uint32_t arm_rfft_instance_q31::fftLenReal |
length of the real FFT.
Definition at line 2291 of file arm_math.h.
| uint8_t arm_rfft_instance_q31::ifftFlagR |
flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform.
Definition at line 2292 of file arm_math.h.
| const arm_cfft_instance_q31* arm_rfft_instance_q31::pCfft |
points to the complex FFT instance.
Definition at line 2297 of file arm_math.h.
| q31_t* arm_rfft_instance_q31::pTwiddleAReal |
points to the real twiddle factor table.
Definition at line 2295 of file arm_math.h.
| q31_t* arm_rfft_instance_q31::pTwiddleBReal |
points to the imag twiddle factor table.
Definition at line 2296 of file arm_math.h.
| uint32_t arm_rfft_instance_q31::twidCoefRModifier |
twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.
Definition at line 2294 of file arm_math.h.