• Cortex-A8 boot up cpsr status
    Hi, I have a beaglebone black and running a very basic app using starterware. As soon as the app starts executing i copy the CPSR values in memory. The value of CPSR is super surprising 6000019f which...
  • Question about ARM exception and CPSR status
    Hi , for ARMv7-A15, when an exception is issued, such like a "smc #0" instruction in supervisor mode, ARM hardware will jump into the vector and CPSR will be changed in monitor mode. my question is, what...
  • updating CPSR in USER UNPRIVILEGED mode
    as we know supervisor mode is priviliged and user is not. at reset time in debugging mode, i read the cpsr it is 0x1d3 means in supervisor mode, so i can change CPSR so i changed it to 0x1d0 which is...
  • Modified harvard architecture
    Hello, I am preparing for the AAE. ARM is a modified Harvard architecture. What is this about ? I searched in internet and got various answers. Can anyone tell me exactly what is this modified Harvard...
  • help needed on arm7 timer interrupt
    Note: This was originally posted on 15th January 2009 at http://forums.arm.com Dear all !      i am trying to use a timer interrupt to call a function in an ARM7 platform.i hope this timer interrupt can...