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MCU & System Architecture
Boot & Startup
Boot & Startup Interview Questions
10 questions in
MCU & System Architecture
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Describe what happens from power-on until main() is called on a Cortex-M microcontroller.
Boot & Startup
Boot Sequence
foundational
0
What is the vector table and where does it live?
Boot & Startup
Boot Sequence
foundational
0
What does SystemInit() typically do, and why does it run before main()?
Boot & Startup
Boot Sequence
foundational
#4
0
Why does the .data section need to be copied from Flash to RAM at startup? Why doesn't .bss need copying?
Boot & Startup
Memory Sections
foundational
#5
0
Walk me through a linker script — what are the key sections and directives?
Boot & Startup
Memory Sections
foundational
#6
0
How do you place a function or variable at a fixed memory address?
Boot & Startup
Memory Sections
foundational
#7
0
What is VTOR and when would you relocate the vector table?
Boot & Startup
Memory Sections
foundational
#8
0
How would you detect a stack overflow on a bare-metal system?
Boot & Startup
Stack & Heap
foundational
#9
0
How do you determine the appropriate stack and heap sizes for your application?
Boot & Startup
Stack & Heap
foundational
#10
0
What happens if the stack and heap collide, and how can you prevent it?
Boot & Startup
Stack & Heap
foundational
