摘要
针对车站、码头、体育场等公共场合时间显示的需要,设计了一个简单实用的的智能遥控LED(发光二极管)单色时钟屏控制系统,以单片机89C2051为控制器。该系统采用实时时钟芯片DS3231,走时相当准确,有效提高了系统的可靠性,通过89C2051单片机实行异步图文控制,采用MB I5001作为LED的驱动芯片,可用红外遥控进行显示屏的开启、关闭及显示时间的设置和修改。给出了该控制系统的软硬件设计要点,重点介绍了时钟芯片和EEPROM所支持的二线协议I2C总线、红外遥控解码,给出了部分软件程序。
To meet the requirements of public, such as rail station, dock, palaestra, etc. , this paper designs a single chip microcomputer 89C2051 controlled LED self-color clock-display, which has simpleness and practicality and excellent expendability and operated by remote control. The system adopts real-time clock-chip DS3231, which can keep time quite accurate and improve the credibility of system. It can asynchronous controlled by 89C2051 and the time can be modified by infrared remote control. The paper puts forward the design points of the control system＇ s software and hardware, and emphasizes on I^2C bus protocol and decoding the remote control. The paper also gives us some software process.
出处
《电子工程师》
2007年第9期56-59,共4页
Electronic Engineer
关键词
LED显示屏
实时时钟芯片
红外遥控
单片机
LED display
real-time clock-chip
infrared remote control
single chip microcomputer
