Interrupt vector table in Embedded C - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare the interrupt vector table array.

Embedded C

void (*interrupt_vector_table[])() = { [1] };

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AReset_Handler, NMI_Handler, HardFault_Handler

Bint, void, char

Cmain, setup, loop

D0, 1, 2

Attempts:

3 left

💡 Hint

Common Mistakes

Using data types instead of function names.

Using numbers instead of handler names.

The interrupt vector table is an array of function pointers to handlers like Reset_Handler.

2fill in blank

medium

Complete the code to define the Reset_Handler function.

Embedded C

void [1]() {
    // Initialization code
}

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AReset_Handler

BNMI_Handler

CHardFault_Handler

DDefault_Handler

Attempts:

3 left

💡 Hint

Common Mistakes

Naming the function incorrectly.

Using a handler meant for other interrupts.

The Reset_Handler is the function called on system reset.

3fill in blank

hard

Fix the error in the vector table declaration by completing the blank.

Embedded C

void (*vector_table[])() = { Reset_Handler, [1], HardFault_Handler };

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Amain

Bloop

Csetup

DNMI_Handler

Attempts:

3 left

💡 Hint

Common Mistakes

Using main or setup functions instead of interrupt handlers.

Confusing the order of handlers.

The second entry in the vector table is the NMI_Handler function pointer.

4fill in blank

hard

Fill both blanks to complete the vector table with correct handlers.

Embedded C

void (*vector_table[])() = { [1], [2], HardFault_Handler };

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AReset_Handler

BDefault_Handler

CNMI_Handler

Dmain

Attempts:

3 left

💡 Hint

Common Mistakes

Using main or Default_Handler in wrong positions.

Swapping the order of handlers.

The vector table starts with Reset_Handler, then NMI_Handler, followed by HardFault_Handler.

5fill in blank

hard

Fill all three blanks to create a vector table with uppercase handler names and a default handler.

Embedded C

void (*vector_table[])() = { [1], [2], [3] };

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ARESET_HANDLER

BDEFAULT_HANDLER

CNMI_HANDLER

DMAIN_HANDLER

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase handler names here.

Mixing up the order of handlers.

This vector table uses uppercase handler names. The first is MAIN_HANDLER, then DEFAULT_HANDLER, and finally NMI_HANDLER.