• When does a Cortex Mx wake up from "wfi" ? Is it configurable?
    Hello, Question about the "hint" instruction - WFI. The armv7m arch manual (i'm using DDI0403_B, latest?) says it will come out of the suspended / low-power state if: • A reset. • An asynchronous...
  • wfi in debug mode
    Hi, Please help me understand expected behavior of CM4 when CM4 is in debug mode and WFI is executed through single step. Does CM4 enter sleep/sleepdeep in such case ? Thanks, Sandeep
  • Cortex M3 - Conditions for IT folding
    Hi folks, Some weeks ago, I discover the mechanism of IT instruction folding supported by the cortex-M3. As mentionned in 'Cortex-M3 Devices Generic User Guide', "In some situations, the processor can...
  • Problem: WFI instruction slowing down SYStick interrupt
    I've configured my Infineon relax kit for max frequency(120 MHz). I've set my SYSTick for a periodic interrupt of 10 ms. For power saving, I use a WFI assembler instruction whenever my processor is idle...
  • Difference between WFI and WFE
    Hi Experts, What is the difference between WFE and WFI instructions ? I am able to interpret WFI is like when the physical interrupt signal is activated then the processor wakes up and similarly how the...