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我的实验stm32f1中断跑马灯

于 2022-02-15 发布 文件大小:5.54 MB
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这是我在学习stm2时候写的程序,设置中断优先级分组为组2:2位抢占优先级,2位响应优先级每个内置外设都有若干个输入输出引脚,一般这些引脚的输出端口都是固定不变的,为了让设计工程师可以更好地安排引脚的走向和功能,在STM32中引入了外设引脚重映射的概念,即一个外设的引脚除了具有默认的端口外,还可以通过设置重映射寄存器的方式,把这个外设的引脚映射到其它的端口

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