基于EDA技术的多功能数字时钟的ASIC设计

ASIC Design of Multifunctional Digital clock based on EDA technology

采用EDA技术设计了一个在FPGA芯片上实现的数字时钟,它可以显示年、月、日、时、分、秒、星期,并且可以设定闹钟和整点报时。数字时钟的输入设备是一个4×4的编码键盘,输出设备是用于显示的15个七段数码管、若干LED指示灯及蜂鸣器,数字时钟的内部功能模块可以分为三个部分:综合计时电路、显示控制电路、调整控制电路。其中综合计时电路用于完成各种计时功能,显示控制电路用于完成计时结果的显示,调整控制电路用于调整计时系统的有关参数。

In this paper ,the Muhifunctional Digital Clock based on EDA technology has been designed on FPGA device .it display years, months, dates, hours, minutes, seconds and weeks ; we can set alarm-time to it which can give out alarm when in integral time. The input device of clock is a 4×4 code keyboard; the output unit is 15 LED displayer. Some LED diodes with a buzzer. The electronic divided into three parts on function module, mean： counter-time module use for counting time; display-control module use for displaying time： modify-time module use for modifying time .