范文编号:JD873 附开题报告,任务书,外文翻译,范文字数:16608,页数:37 摘要:本次设计以AT89C2051芯片为核心,辅以必要的外围电路,设计了一个简易的数字电子时钟,它由5V直流电源供电。在硬件方面,除了CPU外,使用四个七段LED数码管显示,LED采用的是动态扫描显示,使用9014芯片进行驱动。通过调试LED能够比较准确显示时、分。三个简单的按键实现对时间的调整。软件方面采用汇编语言编程。整个电子时钟系统能够完成时间的显示,调时,定时闹钟,复位等功能。
Abstract:The AT89C2051 chip design at the core,with the necessary peripheral circuits,designed a simple digital clock, it is powered by 5V DC power supply. In terms of hardware, in addition to CPU, the use of four LED Seven-Segment LED display, LED used is a dynamic scan showed that the use of 9014 to drive the chip. Through more accurate debug LED can display hours, minutes. Three simple keys to achieve the adjustment of time. Software using assembly language programming. The entire electronic time clock system to complete the display, transfer, the timing clock and reset functions.
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