• 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...
  • 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...
  • 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...
  • Realtime CMSIS FIR Filter Issue
    Hi everyone, I'm trying to implement a realtime lowpass FIR filter using the CMSIS library. I'm essentially following their example here: http://www.keil.com/pack/doc/CMSIS/DSP/html/group__FIRLPF...
  • Filtering adc samples using FIR filter
    Hi all, I am interfacing a 16-bit ADC to my arm MCU and I want to filter out noise. I have performed the steps below using the ARM DSP library and I want to ensure that I am doing stuffs correctly...