Help¶

This option enables the Filtering Functions, which support the following operations:

Convolution
Partial Convolution
Correlation

The following filter types are supported:

FIR (finite impulse response) Filter
FIR Lattice Filter
FIR Sparse Filter
FIR Filter with Decimator
FIR Filter with Interpolator
IIR (infinite impulse response) Lattice Filter
Biquad Cascade IIR Filter, Direct Form I Structure
Biquad Cascade IIR Filter, Direct Form II Transposed Structure
High Precision Q31 Biquad Cascade Filter
LMS (least mean square) Filter
Normalized LMS Filter

Direct dependencies¶

CMSIS_DSP

(Includes any dependencies from ifs and menus.)

Defaults¶

No defaults. Implicitly defaults to n.

Kconfig definition¶

At modules/Kconfig.cmsis_dsp:70

Included via Kconfig:8 → Kconfig.zephyr:23 → modules/Kconfig:14 → modules/Kconfig.cmsis:28

Menu path: (Top) → Modules → CMSIS-DSP Library Support

config CMSIS_DSP_FILTERING
    bool "Filtering Functions"
    depends on CMSIS_DSP
    help
      This option enables the Filtering Functions, which support the
      following operations:

      * Convolution
      * Partial Convolution
      * Correlation

      The following filter types are supported:

      * FIR (finite impulse response) Filter
      * FIR Lattice Filter
      * FIR Sparse Filter
      * FIR Filter with Decimator
      * FIR Filter with Interpolator
      * IIR (infinite impulse response) Lattice Filter
      * Biquad Cascade IIR Filter, Direct Form I Structure
      * Biquad Cascade IIR Filter, Direct Form II Transposed Structure
      * High Precision Q31 Biquad Cascade Filter
      * LMS (least mean square) Filter
      * Normalized LMS Filter

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)