实现dds功能，利用quartus软件， 子模块包括加法器，锁相环，date...

应用背景FPGA原型的VHDL例子提供一系列清晰，易于遵循的快速代码开发模板；大量的实际例子来说明和强化的概念和设计技术；现实可实施的项目和测试在Xilinx原型板；深入探索和Xilinx PicoBlaze软核微处理器。关键技术本书采用“做中学”介绍VHDL和FPGA技术的概念和设计人员通过一系列的实验方法。

四位动态数码管显示数字时钟的分位和秒位。工具：Quartus ii 6.0 语言：VHDL-4 shows the number of dynamic digital tube digital clock and seconds bit. Tools: Quartus ii 6.0 Language: VHDL

基于CPLD 的光电脉冲码盘 信号四倍频电路设计-CPLD-based electro-optical pulse encoder signals four multiplier circuit design

周立功sopc教程的视频资料，适合广大自学者学习-ZLG sopc video tutorial is suitable for the general self-learners to learn

基本的usb驱动程序的编程方法,值得一看.-Basic programing method for USB driver, worth reading

基于VHDL的SDH专用芯片的TOP-DOWN设计， 内有全套源码以及图片，内容详尽，绝对真实可靠！(VHDL based on the SDH ASIC Design TOP-DOWN, which has a full set of source code, as well as pictures, and detailed, reliable and absolutely true!)

说明：  document qpsk vhdl code

verilog RTL code for simple TCAM

-- WISHBONE revB2 compiant I2C master core -- -- author: Richard Herveille -- rev. 0.1 based on simple_i2c -- rev. 0.2 april 27th 2001, fixed incomplete sensitivity list on assign_dato process (thanks to Matt Oseman) -- rev. 0.3 may 4th 2001, fixed typo rev.0.2 txt -> txr -- rev. 0.4 may 8th, added some remarks, fixed some sensitivity list issues--- WISHBONE revB2 compiant I2C master core---- author : Richard Herveille-- rev. 0.1 based on simple_i 2c-- rev. 0.2 adolescence 27th 2001, fixed incomplete sensitivity list on assign_d ato process (thanks to Matt Oseman)-- rev. 0.3 m ay 4th 2001, fixed typo rev.0.2 txt-

USB口的设计，包括驱动程序的设计，以及软件的安装演示，软件的介绍，以及工作模式-USB port design, including the driver design, and installation of software, presentation, software presentation, and working models