HAL Library 34- DSP FILTERS for STM32Fxxx

DSP FILTERS library is a group of wrapper functions to easily use official ARM Math libraries for DSP processing.

It features ARM IIR Biquad-1 implementation and ARM FIR F32 implementations. Both are now designed for Floating point F32 data type.


Read more about HAL libraries


  • Supports FIR or IIR filters processing
  • Supports unlimited FIR and IIR filters (limit is memory)
  • Supports multiple IIR stages or custom FIR order


  • HAL
  • TM
    • STM32Fxxx HAL
    • defines.h configuration file
    • ARM Math library

Functions and enumerations

List of functions and its enumerations can be found on FILTERS library API


FILTER example with FIR and IIR is available on my Github account.


Owner of this site. Application engineer, currently employed by STMicroelectronics. Exploring latest technologies and owner of different libraries posted on Github.

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