Allows late determination of highest priority pending interrupt.Automatically saves and restores processor context.The interrupt entry and exit are hardware implemented in order to reduce the latency and speed up the response. Handler Mode: Which is entered on all other exceptions.Thread Mode: Which is entered on reset. And it can be in one of the following modes: The processor mode can change when exceptions occur. The interrupt architecture and priorities are very flexible and highly configurable to support RTOS. Which offloads this work overhead from the CPU. Micro-Coded Architecture So that interrupt stacking, entry, and exit are done automatically in hardware. Which includes the Nested Vectored Interrupt Controller (NVIC). ARM ® v7 Cortex™ Exceptions / InterruptsĪRM v7 Core supports multiple great features for handling exceptions and interrupts. Without further ado, let’s get started!ġ. And everything you need in order to configure the NVIC & EXTI correctly and write efficient interrupt service routine handlers (ISR) code. How interrupts are generated and how the CPU switches the context to the ISR and back to the main application. In this tutorial, we’ll discuss the ARM cortex interrupts/exceptions, and how priority works. Previous Tutorial Tutorial 7 Next Tutorial STM32 Interrupts Tutorial | NVIC & EXTI STM32 Course Home Page □
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