这是一个很好的USB程序。

六十进制计数器用于计数等操作，代码的实现方式很简单(Six decimal counter for counting operation, the code is very simple implementations)

文件名：lcd1602lib.h 内　容：1602液晶的控制端口、数据端口和相关操作(The file name: lcd1602lib. H * inside let: 1602 LCD control port, data port and related operations )

实现FPGA与PC通信的USB2.0接口,采用verilog语言实现(Implementation of FPGA and PC communication USB2.0 interface, using Verilog language to achieve)

说明：  这个事VHDL基础知识，内面主要内容是编码器的插V过程，值得下载学习！(it is really useful for those who never touch it!)

说明：  本书纸版由机械工业出版社于2014年出版，张强编著，电子版由华章分社（北京华章图文信息有限公司）全球范围内制作与发行(The book was published in paperback by China machine press in 2014, and edited by zhang qiang. The electronic version was produced and distributed worldwide by huazhang branch (Beijing huazhang graphic information co., LTD.))

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

利用matlab提供的firhalfban函数设计阶数为16、通阻带容限为0.0001的半带滤波器。仿真测试滤波前后的信号时域图，回执滤波器的频率响应特性图(Provided firhalfban function using matlab design order of 16, through the 0.0001 stopband wool half-band filter. Simulation test filtered time domain signal before and after, receipt filter frequency response characteristic diagram)

vhdl golden reference guide

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

直接序列扩频通信的Verilog仿真代码，在Quartus II中实现。(Direct sequence spread spectrum communication Verilog simulation code, implemented in Quartus II.)