按键控制定时器选播多段音乐,由51单片机控制，包括源程序和仿真图。-Anycast music key control timer from 51 single-chip control, including source code and simulation plan.

新华龙C8051F007单片机，按键采集，按下按键，比较器置位，AD采集各个按键查询哪个按下，在执行相应操作-Xinhua dragon C8051F007 MCU, key acquisition, press the button, the comparator position, AD acquisition of each key press queries which, in the implementation of the corresponding operation。