• CMSIS DSP arm_fir_decimate function: correct use?
    Dear All, I'm puzzled with results I'm getting from using the arm_fir_decimate_q15 function in CMSIS DSP_Lib, and I'd like to clarify if I use the function correctly. Any help would be really much appreciated...
  • CMSIS DSP new functionality proposal
    CMSIS DSP is a great tool which allows Cortex-M4 devices to have a great app field range, even replacing some general purpose DSP sometimes. However I am missing some "simple" new functions that could...
  • CMSIS DSP - FIR decimation
    Hi, I am trying to implement FIR decimation on PDM input. Which FIR decimator function should I use? I am now trying to implement arm_fir_decimate_fast_q15 since I need to feed the output (hopefully PCM...
  • CFFT AND RFFT using CMSIS DSP library
    Hi, I am currently trying to use the CMSIS DSP library for finding the frequency bin. I have used both  CFFT and RFFT function to compute the frequency bin of input signal. My input data is of 128 samples...
  • Using CMSIS DSP on STM32F746ZG for FIR filtering
    Hi! We're trying to use the CMSIS DSP library to filter a real-time signal using the CMSIS dsp fir function. We are using the STM32746ZG board. We've calculated the coefficients in C and they are correct...