The Cortex-M3 processor core locates the interrupt (exception) handlers through a vector table. Each entry in the table consists of the address of an interrupt handler. The table is indexed by the unique number of each interrupt source. The format of the STM32 vector table is defined both by the Cortex-M3 reference manual [1] and by the appropriate STM32 reference manual [21, 20]. A fragment of this table for the STM32 F100xx devices is illustrated in Table 11.1