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Embedded Systems MCQs

When porting the AOS, CAL has the following calls when rewritten?

CAL_ChangeStack: This is the function, where the context switch happens. This is explained in Context Switching section.

CAL_InitializeHardware(): Initializes the hardware, which means initializing the IO, interrupts and timers.

CAL_EnterCriticalRegion(): Enter the critical region by disabling the interrupts.

CAL_ExitCriticalRegion(): Exit the critical region by restoring the CPU flags.

All of the above

Answer

Correct Answer: All of the above

Explanation:

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