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    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...
  • 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...
  • arm1176jzf-s fiq context switch
    I have been working with FreeRTOS on a Raspberry Pi Zero on the IRQ without issue on the context switch However I want to move the context switch to the FIQ but I have an issue with the FIQ bank registers...
  • code compile using -mcpu for ARM platform
    When using gcc to compile c code for ARM platform, we set object platform by using:      -mcpu = xxxxxx To what extent will that affect results of compiling ? For example:      -mcpu = cortex-a8 and ...
  • What happens if a same priority exception came while context-switch is executing?
    Hello, I meet a problem while using Spin Model Checker to verify a RTOS kernel based on Cortex-m3 platform. My PendSV is in the lowest priority 16 and perform to schedule next user task and context...