Simon Ford
CMSIS DSP Library from CMSIS 2.0. See http://www.onarm.com/cmsis/ for full details
Dependents: K22F_DSP_Matrix_least_square BNO055-ELEC3810 1BNO055 ECE4180Project--Slave2 ... more
arm_rfft_instance_f32 Struct Reference
Instance structure for the floating-point RFFT/RIFFT function. More...
#include <arm_math.h>
Data Fields | |
| uint32_t | fftLenReal |
| length of the real FFT. | |
| uint16_t | fftLenBy2 |
| length of the complex FFT. | |
| uint8_t | ifftFlagR |
| flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. | |
| uint8_t | bitReverseFlagR |
| flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. | |
| uint32_t | twidCoefRModifier |
| twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. | |
| float32_t * | pTwiddleAReal |
| points to the real twiddle factor table. | |
| float32_t * | pTwiddleBReal |
| points to the imag twiddle factor table. | |
| arm_cfft_radix4_instance_f32 * | pCfft |
| points to the complex FFT instance. | |
Detailed Description
Instance structure for the floating-point RFFT/RIFFT function.
Definition at line 2122 of file arm_math.h.
Field Documentation
| uint8_t bitReverseFlagR |
flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output.
Definition at line 2127 of file arm_math.h.
| uint16_t fftLenBy2 |
length of the complex FFT.
Definition at line 2125 of file arm_math.h.
| uint32_t fftLenReal |
length of the real FFT.
Definition at line 2124 of file arm_math.h.
| uint8_t ifftFlagR |
flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform.
Definition at line 2126 of file arm_math.h.
points to the complex FFT instance.
Definition at line 2131 of file arm_math.h.
| float32_t* pTwiddleAReal |
points to the real twiddle factor table.
Definition at line 2129 of file arm_math.h.
| float32_t* pTwiddleBReal |
points to the imag twiddle factor table.
Definition at line 2130 of file arm_math.h.
| uint32_t twidCoefRModifier |
twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.
Definition at line 2128 of file arm_math.h.
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