Home | Projects | Notes > MCU Peripheral Drivers > Vector Table

Vector Table

Vector Table for STM32F407xx MCU

• Table of vectors (Here, vectors mean "pointers" or "addresses")

  $=$$=$ Table of pointers (or addresses) of exception handlers

• Exceptions include:

  • 15 system exceptions (internal to the processor)

  • 240 interrupts (external to the processor)

    • Out of 240 rooms provided for interrupts by default, STM32F407xx MCU supports only 82.

• Vector table is implemented in the startup code of your project. (A startup file can be written either in C or assembly.)

• Total space consumed by the vector table:

  1 (initial stack pointer) + 97 (exceptions) = 98 words = 392 bytes