• "Sec" values increasing much too quickly...
    I'm using uVision 4.7 to debug my Mbed LPC1768 (Cortex M3). When I run the debugger, everything works fine except the elapse time in seconds is very off. In the register window, "sec" increases about...
  • CMSIS DSP RFFT - too much cycles
    Hi, I use the CMSIS DSP library to calculate a f32 RFFT with a block size of 1024 . For this it takes 262823 cycles. I read in the white-paper that it should take 55538 cycles. Because of the measurement...
  • Port pins too slow
    Hi.. I have a problem with the xc167ci. Its I/O-Pins toggle too slowly. If I have e.g. pin 4^0 toggeling, it only works with 2,85 MHz instead of 40 MHz (system clock). I use the following sourcecode...
  • How much Stack size needed
    Hello Im using uVision3 3.60 with LPC2366. How can I get the maximum stack usage? I tried like this (see below) but the result is: Maximum Stack Usage = 0 bytes + Unknown(Cycles, Untraceable Function...
  • Why is my Cortex-M4 taking too much cycles?
    Note: This was originally posted on 10th September 2012 at http://forums.arm.com Dear Arm-experts, i wanted to use the FPU of my STM32F4 (Cortex-M4). To see if it's working properly i compared with this...