Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Dependents: mbed-TFT-example-NCS36510 mbed-Accelerometer-example-NCS36510 mbed-Accelerometer-example-NCS36510
arm_cfft_radix4_instance_q31 Struct Reference
Instance structure for the Q31 CFFT/CIFFT function. More...
#include <arm_math.h>
Data Fields | |
| uint16_t | fftLen |
| length of the FFT. | |
| uint8_t | ifftFlag |
| flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. | |
| uint8_t | bitReverseFlag |
| flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. | |
| q31_t * | pTwiddle |
| points to the twiddle factor table. | |
| uint16_t * | pBitRevTable |
| points to the bit reversal table. | |
| uint16_t | twidCoefModifier |
| twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. | |
| uint16_t | bitRevFactor |
| bit reversal modifier that supports different size FFTs with the same bit reversal table. | |
Detailed Description
Instance structure for the Q31 CFFT/CIFFT function.
Definition at line 2137 of file cmsis/arm_math.h.
Field Documentation
| uint8_t bitReverseFlag |
flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output.
Definition at line 2141 of file cmsis/arm_math.h.
| uint16_t bitRevFactor |
bit reversal modifier that supports different size FFTs with the same bit reversal table.
Definition at line 2145 of file cmsis/arm_math.h.
| uint16_t fftLen |
length of the FFT.
Definition at line 2139 of file cmsis/arm_math.h.
| uint8_t ifftFlag |
flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform.
Definition at line 2140 of file cmsis/arm_math.h.
| uint16_t * pBitRevTable |
points to the bit reversal table.
Definition at line 2143 of file cmsis/arm_math.h.
| q31_t * pTwiddle |
points to the twiddle factor table.
Definition at line 2142 of file cmsis/arm_math.h.
| uint16_t twidCoefModifier |
twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.
Definition at line 2144 of file cmsis/arm_math.h.
Generated on Tue Jul 12 2022 11:03:17 by
1.7.2