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通过硬件电路和软件程序,利用atxmega128a1开发板控制发光二极管的点亮和熄灭。初步掌握单片机的I/O口功能。

于 2022-11-18 发布 文件大小:483.93 kB
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通过硬件电路和软件程序,利用atxmega128a1开发板控制发光二极管的点亮和熄灭。初步掌握单片机的I/O口功能。 Xmega有灵活的通用I/O端口。每个端口从引脚0到7可以被配置为输入或者输出。接下来就是通过不断改变引脚的电平来控制二极管的亮灭。由于程序执行速度很快,如果在很短的时间内改变PQ1口的状态,人眼是看不出来的,所以中间必须有个延时的程序。

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