数字秒表的设计报告，用VHDL语言编写程序，实现分析讨论中各种功能，分别进行编译并生成相应的模块，然后将这些模块连接起来形成电路图，并进行编译、仿真。-Digital stopwatch design reports, using VHDL language programming, analysis and discussion of various functions to achieve, respectively, to compile and generate the corresponding module, and then connect these modules together to form a circuit, and compiled simulation.