CMSIS-DSP: arm_biquad_casd_df1_inst_f32 Struct Reference

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arm_biquad_casd_df1_inst_f32 Struct Reference

Instance structure for the floating-point Biquad cascade filter.

## Data Fields

uint32_t | numStages
float32_t * | pState
float32_t * | pCoeffs

## Field Documentation

uint32_t arm_biquad_casd_df1_inst_f32::numStages

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

Referenced by arm_biquad_cascade_df1_f32(), and arm_biquad_cascade_df1_init_f32().

float32_t* arm_biquad_casd_df1_inst_f32::pCoeffs

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

Referenced by arm_biquad_cascade_df1_f32(), and arm_biquad_cascade_df1_init_f32().

float32_t* arm_biquad_casd_df1_inst_f32::pState

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

Referenced by arm_biquad_cascade_df1_f32(), and arm_biquad_cascade_df1_init_f32().