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STM32F103中SysTick是外设吗?
在STM32F103中,SysTick(系统定时器)确实是一个位于CPU内部的组件,而不是独立于CPU的外设。 SysTick的主要作用是为操作系统或应用程序提供一个精确的周期性中断,因此它常用于系统心跳或计时功能。 例如,操作系统可以利用SysTick中断来实现任务调度,使得 ...
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