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arm_biquad_cas_df1_32x64_ins_q31 Struct Reference

Instance structure for the high precision Q31 Biquad cascade filter. More...

#include <arm_math.h>

Public Attributes

uint8_t numStages
 
q63_t * pState
 
q31_t * pCoeffs
 
uint8_t postShift
 

Detailed Description

Instance structure for the high precision Q31 Biquad cascade filter.

Member Data Documentation

uint8_t arm_biquad_cas_df1_32x64_ins_q31::numStages

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

q31_t* arm_biquad_cas_df1_32x64_ins_q31::pCoeffs

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

uint8_t arm_biquad_cas_df1_32x64_ins_q31::postShift

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

q63_t* arm_biquad_cas_df1_32x64_ins_q31::pState

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

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