数字秒表的设计，设计并调试一个计时范围为0.01秒~1小时的数字秒表，并用实验开发系统进行硬件验证。有详细步骤和源码。-The digital stopwatch s design, designs and debugs a time scope is 0.01 second ~1 hour digital stopwatch, and carries on the hardware confirmation with the experiment development system. Has

数字跑表，具有复位，暂停，秒表计时等功能。分为时钟输入，复位和启动，暂停。。。 复位信号高电平有效，可对跑表异步清零。-Digital stopwatch with reset, suspend, stopwatch and other functions. Divided clock input, reset, and start, pause. . . Active high reset signal, can stopwatch asynchronous clear.