时钟液晶 DE2 系列

代码是伪随机数生成和检测的模块，用于通信行业的FPGA编程。包括VHDL和Verilog两种语言的版本。用于做接口测试。(This module generates or check a PRBS pattern.)

采用倍频及1/3、1/12倍频绘制的路面不平度频谱图（自编）(Using octave and 1/3, 1/12 octave drawn road roughness spectrum (self))

fpga实现ddr数据收发测试，完整的工程，下载解压后，即可正确运行，已多次验证无误(FPGA DDR data receive and receive test, complete engineering, download and unzip, can run correctly, has been verified many times)

这个是 DDR3 SDRAM 控制器的 verilog 代码。欢迎下载和使用。谢谢您的支持！！！

基于NiosII系统的可以在DE2-115板子上运行的吞食蛇游戏！（可以使用RS2键盘进行控制）(DE2-115 board NiosII system swallowed snake game! , (RS2 keyboard control))

非常好的EPM570(CPLD)学习程序源码,适合初学者,能让其快速入门(Very good EPM570 (CPLD) learning program source code, suitable for beginners, allowing its Quick Start)

说明：  用Verilog编写的简单的运算单元（ALU），可实现加、减、与、或、异或、非、左、右移等功能(Verilog prepared with simple arithmetic unit (ALU), can be add, subtract, and, or, exclusive-OR, non-, left, and other functions shifted to right)

cvery high compatibles for quartus

基于FPGA的电子密码锁设计-已在开发板上成功运行，通过老师检验。(FPGA based electronic password lock design- has been successfully developed on the development board, through the teacher inspection.)

74hc595 driver 8 led