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介绍了一个基于AT89S52单片机的奥运倒计时牌的设计.系统采用AT89S52作为主控核心,串行实时时钟芯片DS1302完成计时功能.软件部分完成了对各个模块的控制、整合,实现奥运倒计时信息的显示、键盘对时钟的设置、时钟显示等功能.
This paper introduces the design of Olympic countdown card based on AT89S52 MCU.The system uses AT89S52 as the main control core and serial real-time clock chip DS1302 to complete the timing function.The software partially controls and integrates each module to display the Olympic countdown information, Keyboard on the clock settings, clock display and other functions.