Hands-On RTOS with Microcontrollers

Interrupt processing

Within the ARM Cortex-M family, interrupt processing is all very similar. All of the devices include a nested vector interrupt controller (NVIC) with a relocatable vector table and an external interrupt controller (EXTI). Device-specific considerations include the exact peripheral interrupts that are available and how they are mapped to the NVIC, as well as how external interrupts are multiplexed into the EXTI.