本设计的数字钟,要求显示格式为小时—分钟—秒钟，分别在8个七段LED数码管上以动态分时扫描的方式显示，附加功能：有调时模式，增加秒表功能-The design of the digital clock, required to display format for hours-minutes-seconds, respectively in eight seven LED digital tube for dynamic points the way to scan showed that ad