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Aug 19, 2016 · Fundamentals

Mastering STM32 NVIC Interrupt Priority Groups: A Practical Guide

This article explains STM32's 43 interrupt channels and how the AIRC register's 4-bit priority fields are divided into pre‑emptive and sub‑priority groups, illustrating each NVIC_PriorityGroup setting with concrete code examples and step‑by‑step configuration instructions.