V4.0.1 of the ARM CMSIS DSP libraries. Note that arm_bitreversal2.s, arm_cfft_f32.c and arm_rfft_fast_f32.c had to be removed. arm_bitreversal2.s will not assemble with the online tools. So, the fast f32 FFT functions are not yet available. All the other FFT functions are available.

Dependents:   MPU9150_Example fir_f32 fir_f32 MPU9150_nucleo_noni2cdev ... more

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arm_fir_interpolate_instance_q31 Struct Reference

arm_fir_interpolate_instance_q31 Struct Reference

Instance structure for the Q31 FIR interpolator. More...

#include <arm_math.h>

Data Fields

uint8_t L
 upsample factor.
uint16_t phaseLength
 length of each polyphase filter component.
q31_t * pCoeffs
 points to the coefficient array.
q31_t * pState
 points to the state variable array.

Detailed Description

Instance structure for the Q31 FIR interpolator.

Definition at line 3576 of file arm_math.h.


Field Documentation

uint8_t L

upsample factor.

Definition at line 3578 of file arm_math.h.

q31_t* pCoeffs

points to the coefficient array.

The array is of length L*phaseLength.

Definition at line 3580 of file arm_math.h.

uint16_t phaseLength

length of each polyphase filter component.

Definition at line 3579 of file arm_math.h.

q31_t* pState

points to the state variable array.

The array is of length blockSize+phaseLength-1.

Definition at line 3581 of file arm_math.h.