用VHDL编写常用的22个例子，作为硬件语言的入门教程。-Using VHDL Examples of commonly used 22 as a tutorial introduction to the hardware language.

vhdl经典教程，本人亲自学习实践，很有用。带你进入fpga世界。(VHDL classic tutorials, I personally learn practice, very useful. Take you into the FPGA world.)