• 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...
  • Current Variation due to Functional Unit activation or deactivation
    Hello to all, I would like to measure the current variation due to Functional Unit activation and deactivation. Can anyone help me out with the assembly program or the code through which I can measure...
  • How to acknowledge/clear active interrupt in Cortex-M4
    Hi all, I'm testing interrupt on a Cortex-M4 based platform. So far I have managed to get my interrupt handler called. It clears the interrupt source coming from the peripheral. But before the pin to...
  • Changing interrupt priority to prevent nesting
    Hi, I'm working on M0+, but the question applies to M3 or M4 too. I have the following situation: 2 interrupt sources inject events on a state machine that must handle each event separately (not nested...
  • How the current consumption is affected by instruction address
    Hello to all, I am willing to know the variation in the current consumption due to the instruction address. Therefore I have performed two experiments, first time filled the pipeline with a 32-bit instruction...