• CMSIS IIR filter calculation speed
    Hello! I am trying to implement IIR filter algorithms on an STM32F767. I'm using the CMSIS library for the filter algorithms and they are working as expected. However, the execution speed is very...
  • Audio artifacts from CMSIS/DSP Q15 => float => Q15 conversion
    I use CMSIS/DSP library in an audio application. I have issues with the conversions 16 bits PCM (=>) Q15 => float => Q15 (=>) 16 bits PCM (in fact no real conversion between 16 bits PCM and Q15, as I...
  • STM32F427ZG and CMSIS FIR Filters
    I am using STM32F427ZG and have a query about the CMSIS FIR Filter functions. We require highest possible speed in a 16 bit environment. I have been comparing speeds for the q15,q31 and float32 FIR...
  • Error implementing filter in CMSIS
    I am trying to implement the IIR Butter-worth filter using CMSIS library.. please refer this www.docdroid.net/.../iir.txt.html to verify the code i took the input buffer/array of 1's and i obtained...
  • CMSIS question on CAN filtering
    Hi, Concerning CAN objects that can have multiple filters assigned... The following CMSIS structure tells the application about the filtering capabilities of each object. It is returned in the...