• 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...
  • Pending interrupt status
    Hello, If there is a pending interrupt status already set, but it is not being handeled yet, is it possible that somehow that interrupt will no longer have pending status (pending status will disappear...
  • A53 core does not enter sleep state with WFE
    I am trying to use WFE on Linux user space. I have the following code, while(1) { if (condition==TRUE) break; __asm__ __volatile__ ("wfe" : : : "memory"); ... } It seems the core never...
  • 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
  • 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...