介绍8位加法器、分频电路、数字秒表的PPT，带源码，解释详细，一步一步学习，是学习VHDL的好-introduced eight Adder, the frequency divider circuit, digital stopwatch, the PPT, with the source code, explained in detail, step by step, learning, VHDL is a good learning Eastern

文件分割机，是一个很好的工具，是学习的好源码。-File Divider is a good tool, is a good source for learning.