# arm_fir_lattice_instance_f32 Struct Reference

CMSIS-DSP: arm_fir_lattice_instance_f32 Struct Reference

| CMSIS-DSP Version 1.5.2 CMSIS DSP Software Library

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arm_fir_lattice_instance_f32 Struct Reference

Instance structure for the floating-point FIR lattice filter.

## Data Fields

uint16_t | numStages
float32_t * | pState
float32_t * | pCoeffs

## Field Documentation

uint16_t arm_fir_lattice_instance_f32::numStages

number of filter stages.

Referenced by arm_fir_lattice_f32(), and arm_fir_lattice_init_f32().

float32_t* arm_fir_lattice_instance_f32::pCoeffs

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

Referenced by arm_fir_lattice_f32(), and arm_fir_lattice_init_f32().

float32_t* arm_fir_lattice_instance_f32::pState

points to the state variable array. The array is of length numStages.

Referenced by arm_fir_lattice_f32(), and arm_fir_lattice_init_f32().