CMSIS-DSP  Verison 3.0
CMSIS DSP Software Library
arm_fir_sparse_instance_q31 Struct Reference

Instance structure for the Q31 sparse FIR filter.

Data Fields

uint16_t numTaps
uint16_t stateIndex
q31_t * pState
q31_t * pCoeffs
uint16_t maxDelay
int32_t * pTapDelay

Field Documentation

maximum offset specified by the pTapDelay array.

number of coefficients in the filter.

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

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

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

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