微机原理课程设计，设计一段音乐，根据音调在发光二极管上对应闪烁，并在七段数码管上显示已播放时间。...

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微机原理课程设计，设计一段音乐，根据音调在发光二极管上对应闪烁，并在七段数码管上显示已播放时间。-Computer Principles of curriculum design, the design of a section of music, according to pitch in the corresponding LED flashes, and Seven-Segment LED display has been broadcasting time.