CMSIS DSP Software Library: arm_biquad_casd_df1_inst_q31 Struct Reference
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arm_biquad_casd_df1_inst_q31 Struct Reference
Instance structure for the Q31 Biquad cascade filter.
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#include <arm_math.h>
Data Fields
uint32_t numStages
q31_t * pState
q31_t * pCoeffs
uint8_t postShift
Detailed Description
Instance structure for the Q31 Biquad cascade filter.
Examples:
arm_graphic_equalizer_example_q31.c.
Definition at line 1117 of file arm_math.h.
Field Documentation
uint32_t arm_biquad_casd_df1_inst_q31::numStages
number of 2nd order stages in the filter. Overall order is 2*numStages.
Definition at line 1119 of file arm_math.h.
q31_t* arm_biquad_casd_df1_inst_q31::pState
Points to the array of state coefficients. The array is of length 4*numStages.
Definition at line 1120 of file arm_math.h.
q31_t* arm_biquad_casd_df1_inst_q31::pCoeffs
Points to the array of coefficients. The array is of length 5*numStages.
Definition at line 1121 of file arm_math.h.
uint8_t arm_biquad_casd_df1_inst_q31::postShift
Additional shift, in bits, applied to each output sample.
Definition at line 1122 of file arm_math.h.
The documentation for this struct was generated from the following file:
arm_math.h
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