本文描述了数字钟的设计方案和具体的设计步骤及代码，功能比较全面，可以直接用作课程设计！-This paper describes the design of digital clock program and the specific design steps and code, function more comprehensive and can be directly used for curriculum design!

这时一个关于数字钟的VHDL程序，有计时、校时、报时等功能-When a digital clock on the VHDL program, there is time, school time, timer and other functions