• Variation in the current consumption due to memory address and offset value?
    Hello to all, I am trying to figure out the variation in current consumption as well as in clock cycles due to different memory regions and different offsets. During various experiments, I have found...
  • Get current active interrupt priority
    Hi everybody, We are working on a simple priority RTC (run to completion) framework for the Cortex M3/M4. Thanks to the NVIC/BASEPRI, we got most of this functionality for free but we want to extend it...
  • Example of instructions, doesn't use functional unit at all?
    Hello to all, I need a small help with the processor instructions. Can anybody provide me an example where during execution, the functional unit must not be used or it must be deactivated? All data...
  • Memory protection unit - Cortex-M4
    Hi. I am writing back regarding MPU usage. I implemented it into the software in next ways (note, that program is quite simple - only privileged mode, no RTOS): 1. I enabled background region, thus all...
  • Current priority level of processor
    Hi, I have been reading about the exception mechanism of Cortex-M (M4 to be precise). The exception request is accepted by the processor if the current priority level of the processor is less than the...