• FIR filterin in Fixed Format
    Hi, In My application I am sampling 3 phase current at sampling frequency of 800Hz, currently I am using the below code and could get a steady rms without any problem.. I am using a bipolar ADC with...
  • 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...
  • 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...
  • 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...