计是利用MCS-51单片机内部的定时／计数器、中断系统、以及行列键盘和LED显示器等部件，设计一个单片机电子时钟。设计的电子时钟通过数码管显示，并能通过按键实现设置时间和暂停、启动控制等。-Meter is the use of MCS-51 microcontroller internal timer/counter, interrupt system, and the ranks of the keyboard and LED displays and other components, the design of a single-chip electronic clock. Designed by digital display electronic clock, and can be the key to achieve the set time and pause, start control.