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CMSIS DSP Software Library
 
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arm_fir_sparse_instance_f32 Struct Reference

Instance structure for the floating-point sparse FIR filter. More...

Data Fields

uint16_t numTaps
 
uint16_t stateIndex
 
float32_tpState
 
const float32_tpCoeffs
 
uint16_t maxDelay
 
int32_t * pTapDelay
 

Description

Instance structure for the floating-point sparse FIR filter.

Field Documentation

◆ maxDelay

uint16_t maxDelay

maximum offset specified by the pTapDelay array.

◆ numTaps

uint16_t numTaps

number of coefficients in the filter.

◆ pCoeffs

const float32_t* pCoeffs

points to the coefficient array. The array is of length numTaps.

◆ pState

float32_t* pState

points to the state buffer array. The array is of length maxDelay+blockSize-1.

◆ pTapDelay

int32_t* pTapDelay

points to the array of delay values. The array is of length numTaps.

◆ stateIndex

uint16_t stateIndex

state buffer index. Points to the oldest sample in the state buffer.