一个在Xilinx spartan3实现的时钟，具有时分秒的计时显示以及年月日的显示，很有参考价值

说明：  该资料是用vhdl编写的按键消抖程序，按键消抖在使用按键的数字电路中非常重要，如果不对按键信号进行处理，有可能会出现大量错误的按键信号。文件key_xd.vhd是按键消抖程序，文件key_xd.vwf是仿真波形文件。该程序已经通过仿真测试，并且在电路板上调试通过，效果理想。(The information is written in the key consumer vhdl shaking procedures, key consumer shaking in digital circuits using the buttons is very important, if not key signal processing, there may be a lot of the wrong button signal. File key_xd.vhd is key consumer shake procedure is the simulation waveform file key_xd.vwf file. The program has been tested by simulation and debugging in circuit board by, the results are satisfactory.)

全部通过，是我的精心设计，完全满足初学者的要求。-all passed, I was carefully designed, fully meet the requirements of beginners.

verilog 比较基础的教程 呵呵 新手学习学习啊 大家有资料工乡-basis of comparison of the tutorial Verilog Ha ha ah novice learn Rural U.S. Data Works

说明：  写出13个简单的Verilog demon，适合初学者观摩学习。配合实验报告，食用更佳。(Write 13 simple Verilog demon, suitable for beginners to observe and learn. With the experimental report, it is better to eat.)

Commponent for drivering EEPROM memory AT25320 from Avalon bus.

清华大学电子课程设计：Verilog，QuartusII可正确运行，可下载到FPGA上，完成远程通信的整体任务，PC发数据，键盘输入运算符与运算数计算将结果显示在数码管上并返回给PC机，需异步串口调试软件(Verilog, QuartusII run correctly, can be downloaded to the FPGA, to complete the overall task of remote communication, PC send data, keyboard operators and operands calculation displays the results in digital tube and returned to the PC, to be asynchronous serial debugging software)

采用VHDL语言编写，此题为全国大学生电子设计竞赛题目，产生一个伪随机信号，并用时钟提取模块提取时钟，最终能在示波器上获得眼图，验证实验结果。此程序已经经过本人亲自验证，完全可用，可用于电赛培训之中。

这是一个用vhdl硬件描述语言实现的乘法器而不是多路选择器-this is an implimentation of an multiplier rather than multiplexer.

Altera DE0-Nano 开发平台SOPC可编程片上系统实现官方Demo。(Altera DE0-Nano development platform the SOPC programmable on-chip system Official Demo.)

HDL example source code 3/5 jkff_a