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 correspo