本代码基于FPGA实现了计时范围：00’00”00 ~ 59’59”99，显示的最长时间为59分59 秒的功能。数字秒表的计时精度是10ms。显示工作方式：a、用八位数码管显示读数

b、用两个按钮开关（一个按钮使秒表复位，另一个按钮控制秒表的启动/暂停）-This code based on FPGA to realize the timing range: 00　00 00 ~ 59　59 "99," according to the function of the maximum time for 59 minutes and 59 seconds.Digital stopwatch timing accuracy is 10 ms.Display works: a, with eight digital tube display readingsB, use two button switch (a button to reset the stopwatch, another start/stop button control stopwatch)