arm_fir_sparse_instance_q15 Struct Reference

Instance structure for the Q15 sparse FIR filter.

Data Fields
uint16_t	numTaps
uint16_t	stateIndex
q15_t *	pState
const q15_t *	pCoeffs
uint16_t	maxDelay
int32_t *	pTapDelay

Field Documentation

uint16_t arm_fir_sparse_instance_q15::maxDelay

maximum offset specified by the pTapDelay array.

uint16_t arm_fir_sparse_instance_q15::numTaps

number of coefficients in the filter.

const q15_t* arm_fir_sparse_instance_q15::pCoeffs

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

q15_t* arm_fir_sparse_instance_q15::pState

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

int32_t* arm_fir_sparse_instance_q15::pTapDelay

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

uint16_t arm_fir_sparse_instance_q15::stateIndex

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