【摘要】 设计一种以单片机AT89S52为核心,以ISD2560、DS1302、MAX7219等芯片为外设的多功能出租车计价器,给出了硬件电路及主程序流程,阐述了软硬件设计过程中关键技术的处理方法.对Proteus与Keil c51集成开发环境进行连调.结果表明:该计价器具有集计程、计时、计费、存储、查看、统计等多种计量功能,并且具有防止司机作弊、语音、打印和显示等多种功能.与已有的系统相比,该系统还具有超速提醒等功能.更多还原

【Abstract】 The design of multi-function taximeter based on single chip microcomputer AT89S52 and equipped with peripheral of ISD2560,DS1302 and MAX7219 chips is presented.Hardware circuit diagrams and main program flow chart are given.How to solve key problems in the process of designing software and hardware system is also discussed.The simulation results with the tools Proteus and Keil c51 have proved that the system satisfies the practical requirements of distance,time and fare counting,storing,examining,accumulating data,guarding against driver cheating,and the print,speech and display function.Compared with the existing system,this system has stronger function,such as reminding of the excessive speed and so on.The validity and practicality of the design based on Proteus is verified by the experiment.更多还原