ref_biquad_casd_df1_inst_q15 Struct Reference

Instance structure for the Q15 Biquad cascade filter. More...

#include <dsp_ref_math.h>

Data Fields
int8_t	numStages
q15_t *	pState
const q15_t *	pCoeffs
int8_t	postShift

Detailed Description

Instance structure for the Q15 Biquad cascade filter.

Field Documentation

numStages

int8_t ref_biquad_casd_df1_inst_q15::numStages

number of 2nd order stages in the filter. Overall order is 2*numStages.

pCoeffs

const q15_t* ref_biquad_casd_df1_inst_q15::pCoeffs

Points to the array of coefficients. The array is of length 5*numStages.

postShift

int8_t ref_biquad_casd_df1_inst_q15::postShift

Additional shift, in bits, applied to each output sample.

pState

q15_t* ref_biquad_casd_df1_inst_q15::pState

Points to the array of state coefficients. The array is of length 4*numStages.

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The documentation for this struct was generated from the following file:

• include/dsp_ref_math.h