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_sparse_instance_q31 Struct Reference

arm_fir_sparse_instance_q31 Struct Reference

Instance structure for the Q31 sparse FIR filter. More...

#include <arm_math.h>

Data Fields

uint16_t numTaps
 number of coefficients in the filter.
uint16_t stateIndex
 state buffer index.
q31_t * pState
 points to the state buffer array.
q31_t * pCoeffs
 points to the coefficient array.
uint16_t maxDelay
 maximum offset specified by the pTapDelay array.
int32_t * pTapDelay
 points to the array of delay values.

Detailed Description

Instance structure for the Q31 sparse FIR filter.

Definition at line 4568 of file arm_math.h.


Field Documentation

uint16_t maxDelay

maximum offset specified by the pTapDelay array.

Definition at line 4574 of file arm_math.h.

uint16_t numTaps

number of coefficients in the filter.

Definition at line 4570 of file arm_math.h.

q31_t* pCoeffs

points to the coefficient array.

The array is of length numTaps.

Definition at line 4573 of file arm_math.h.

q31_t* pState

points to the state buffer array.

The array is of length maxDelay+blockSize-1.

Definition at line 4572 of file arm_math.h.

int32_t* pTapDelay

points to the array of delay values.

The array is of length numTaps.

Definition at line 4575 of file arm_math.h.

uint16_t stateIndex

state buffer index.

Points to the oldest sample in the state buffer.

Definition at line 4571 of file arm_math.h.