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MSP DSP Library
Data Fields
msp_fft_iq31_params Struct Reference
Transform » Real FFT

Parameter structure for IQ31 real FFT functions. More...

#include <DSPLib_transform.h>

Data Fields

uint16_t length
 
bool bitReverse
 
const _q15 * twiddleTable
 

Detailed Description

Parameter structure for IQ31 real FFT functions.

Examples:
transform_ex3_fft_iq31.c.

Field Documentation

bool msp_fft_iq31_params::bitReverse

Perform bit-reversal of the input before transformation. This step is mandatory, this parameter only exists for applications that might handle bit reversal when storing the data samples to memory. If not this needs to be set to true.

Examples:
transform_ex3_fft_iq31.c.
uint16_t msp_fft_iq31_params::length

Length of the source data, must be a power of two.

Examples:
transform_ex3_fft_iq31.c.
const _q15* msp_fft_iq31_params::twiddleTable

Pointer to the twiddle coefficient table with size greater than or equal to the source length. When using LEA this can be a NULL pointer.

Examples:
transform_ex3_fft_iq31.c.
The documentation for this struct was generated from the following file: