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STM32学习笔记(四)GPIO(General-Purpose I/Os)
例如,一个系统中有两个就绪的任务,上下文切换被触发的场合可以是: 1、执行一个系统调用 2、系统滴答定时器(S 一、前言 在之前围绕STM32的GPIO的基本结构进行了介绍,图1为STM32的5V容忍的GPIO口内部基本结构图,图2为GPIO的基本结构中各个模块部分的概述。
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