arm_fir_decimate_instance_q31 Struct Reference

Instance structure for the Q31 FIR decimator.

Data Fields
uint8_t	M
uint16_t	numTaps
q31_t *	pCoeffs
q31_t *	pState

Field Documentation

uint8_t arm_fir_decimate_instance_q31::M

decimation factor.

Referenced by arm_fir_decimate_fast_q31(), arm_fir_decimate_init_q31(), and arm_fir_decimate_q31().

uint16_t arm_fir_decimate_instance_q31::numTaps

number of coefficients in the filter.

Referenced by arm_fir_decimate_fast_q31(), arm_fir_decimate_init_q31(), and arm_fir_decimate_q31().

q31_t* arm_fir_decimate_instance_q31::pCoeffs

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

Referenced by arm_fir_decimate_fast_q31(), arm_fir_decimate_init_q31(), and arm_fir_decimate_q31().

q31_t* arm_fir_decimate_instance_q31::pState

points to the state variable array. The array is of length numTaps+blockSize-1.

Referenced by arm_fir_decimate_fast_q31(), arm_fir_decimate_init_q31(), and arm_fir_decimate_q31().