本秒表计时器用于体育竞赛及各种要求有较精确时的各领域。此计时器是用一块专用的芯片，用VHDL语言描述的。它除开关、时钟和显示功能以外，它还包括1/100s计时器所有的控制和定时功能，其体积小，携带方便。-the stopwatch timer for the various sports competitions and requires more accurate at the various fields. This timer is a dedicated chip, using the

ADC0809 VHDL代码的顺序控制、输入时钟模块默认为100赫兹 -ADC0809 VHDL code of sequence control, the input clock module defaults to 100 hz

基于vhdl的100个简单例程，非常适合初学者的入门阶段的学习-Based on 100 simple routines vhdl, very suitable for beginners introductory phase of the study