verilog ADPLL file with testbench

数字钟：实验中用到的小程序，用于万年历中的模块(Digital clock: a small program used in the experiment, the modules for calendar)

共两个文件，一个是对网络芯片W5500进行控制的master spi接口，另一个是w5500命令控制逻辑，命令格式按照w5500芯片的要求，分为地址段，控制段和数据段进行统一控制。此外提供w5500芯片初始化及读写控制流程图。(A total of two documents, one is the master SPI interface for network control chip W5500, the other is a w5500 command control logic, command format in accordance with the requirement of w5500 chip, divided into address segment, unified control and data segments. In addition to provide w5500 chip initialization and read and write control flow chart.)

利用FPGA控制VGA显示器显示字符汉字的程序，里面有注释。(VGA display with FPGA control procedures Kanji characters, there are comments.)

基于fpga的led点阵控制系统软件程序设计(Led dot matrix control system based on fpga software program design)

wiley2007年的新书高级FPGA设计作者是权威的设计咨询公司老总，经验之谈-wiley2007-year senior FPGA design book author is the authority of the design consulting firm CEOs, experiences

SPI NOR Flash控制器Verilog源代码(SPI NOR Flash controller Verilog)

2011年 电赛 E题 简易数字信号传输性能分析仪FPGA信号发生部分 包括m序列，伪随机序列，曼彻斯特编码 程序 和单片机部分程序(2011 CEC E title simple digital signal transmission performance analyzer FPGA signal part of the program and single-chip part of the program)

这是用VHDL编写的FPGA与计算机进行串口通信的程序和一个LED程序-VHDL and FPGA prepared by the computer serial communication procedures and an LED procedures

测试人体视觉的反应时间，可以作为vhdl编程的练习之用，也可以更进一步的开发成为具有商业价值的产品，这里面只是能够实现测试人体视觉反应时间的基本功能的程序-Test of human visual reaction time, can be used as VHDL programming exercises used can also be further developed into products with commercial value, there is only able to realize the human visual reaction time test the basic functions of the procedures

实现FPGA对AD芯片AD7060的控制，程序代码的注释很多，易学易懂，适合初学者学习使用(it is good ...)