• Cortex-M3: What happen to the stack pointer (sp) when setting VTOR?
    The first entry of the vector-table is the initial value for the stack-pointer. I'm asking me, will the stack-pointer be changed when VTOR was set? Thanks for any help! :-)
  • Cortexa53 AARCH64 context switch
    I have been trying to do a preemptive context switch on interrupt on the Cortexa53 but it isn't working can anyone spot an error in the code. The code has no FPU use so it is supposed to be just a lazy...
  • ARM Context ID Register & Process Context Switch
    Hi, all What is the content of Context ID Register of ARM Cortex A9. Is it OS that is responsible for assigning the value of Process ID and ASID? As far as I know, it is so in Linux. Is that the same...
  • I want to know priority of Cortex-M3 processor
    which interrrupt priority is higher? systick vs IRQ(external timer) because In my case externl timer is higher then systick. I saw that during processing in systick ISR, but suddenly pc jump to...
  • Control not returning after Context Switch
    Hi, I am using I.mx6q Sabre-sd board. I am trying to write my own custom OS. During the context switching process, the context switch happens accurately but the control doesn't return to the exact position...