基于FPGA的乐曲发生器电路设计 附含源代码（quartersii环境下运行）...

波形产生器：用VHDL编写的波形产生器程序-Waveform Generator: Using VHDL prepared waveform generator procedure

Verilog语言下QAM调制的DDS实现(The QAM Modulation DDS achieve)

说明：  一个走马灯的程序,可以按照要求一个一个往后面按顺序点亮(A program for the lantern can be lit one by one according to the requirements.)

这个程序是为了区分SIGNAL和VARIABLE在不同情况下要怎样使用的例程，程序中使用了三种情况来说明问题(This program is designed to differentiate between routine SIGNAL VARIABLE in different situations and how you want to use, the program uses the three cases to illustrate the problem )

verilog 代码. 经验证成功,可以作为标准单元库,为FPGA设计者使用.-Verilog code. Certified success, as a standard cell library for the use of FPGA designers.

dpim是光通信中使用的一种调制方式，这里提供的是它的环回代码，自己可以根据需要拆开了下载到两块板子上。(dpim is used in an optical modulation, here is its loop-back code, they can download needed two apart on the board.)

VHDL tutorial for self studying

中科院VHDL学习资料，很好的东西，希望对大家有用-Chinese Academy of Sciences VHDL learning materials, a very good thing, everyone would like to be useful

给大家上传一本非常好的关于verilog-hdl的电子书，实用，易懂，易学。此为第七章(Give us a very good upload on verilog-hdl of e-books, practical, easy-to-understand, easy to learn. This is the Chapter VII)

一种接口控制板的逻辑电路设计CPLD程序。-an interface to the control board CPLD logic circuit design process.