• FFT algorithm
    Hello everyone. I write FFT, it's ran! But it run very slow speed, I try on STM32F103C8T6 72MHz and used timer to measure time, the result about 360ms and I can't run another program. Somebody help me...
  • ARM Cortex-M4 (Nuvoton NUC472) not booting with External RAM on EBI Interface
    Hi, We are working on ARM Cortex-M4 (Nuvoton NUC472) based SoC as per our requirement.We are facing one critical issue like board is not booting when we enabled and used extrenal RAM on EBI . We have...
  • file compression with cortex M4
    Hi I'm using a kinetis K64 cortex M4 with FreeRTOS and I need to compress files on a SD card. I have 100-150ko free Ram. Do you know a library for this ? I found only solutions with 1Mo minimum RAM requirement...
  • ARM CFFT Peak Velocity from Acceleration data
    Hello guys, I am using an NRF chip with Cortex M4. Currently I am reading data from an accelerometer (12 signed bit ADC) and I have to get peak velocity. For that I am using the Omega arithmetic algorithm...
  • GNU Scientific Library vs CMSIS Library Time and Space complexity
    Hello,          I have been using CMSIS library for implementation of DSP functions in ARM, however, CMSIS have very limited DSP functions. Although GNU has many DSP functions which CMSIS do not, It only...