USB的VERILOG控制代码

dos下的svga图形库，包括读bmp位图，打点划线等(svga graphics library under dos)

它包含大量用于常见项目的经典verilog代码，如FIFO、add8、RS编码、多路复用等。

说明：  编码方式为213的Viterbi卷积码编码器和译码器的FPGA的实现，包含整个QuartusＩＩ的工程文件，解码方式为寄存器交换法(Encoding for the 213 convolutional code encoder and Viterbi decoder FPGA realization of the project file that contains the entire QuartusII, decoding method for the register exchange)

说明：  designers guide to vhdl(third edition)这本书好像在国外vhdl入门中挺流行的, 爱思维尔有资源,但是是各个章节散装的, 我把它们合成了(The book designers guide to vhdl (third edition) seems to be very popular in foreign vhdl entry. Ixel has resources, but it is a loose chapter of each chapter, I synthesized them)

FPGA／CPLD技术是近年来计算机与电子技术领域的又一场革命。本书以Xilinx与Altera公司的FPGA／CPLD为主，详细介绍了FPGA／CPLD从芯片到MAX+plusⅡ、Quartus与ISE开发环境和Verilog／VHDL语言，并以交通灯逻辑控制、电子钟与点阵LED显示、LCD液晶显示及计算机ISA接口和PCI接口的设计等为例，由浅入深地详述了如何应用FPGA／CPLD进行电子设计。书中的大多数电路图和源程序已经过实例验证，读者可以直接应用于自己的设计。本书的特点是强调实用性和先进性，力求通俗易懂。 本书适用于计算机、电子、控制及信息等相关专业的在校大学生，对广大工程技术人员也具有实用价值。(FPGA/CPLD technology in recent years the field of computer technology and electronic another revolution. Book Xilinx and Altera' s FPGA/CPLD based, detailing the FPGA/CPLD from the chip to MAX+plus Ⅱ, Quartus and ISE development environment and Verilog/VHDL language and logic control traffic lights, electronic bell with dot matrix LED display , LCD liquid crystal display and computer ISA interface and PCI interface design, for example, progressive approach to detail how the application of FPGA/CPLD for electronic designs. Circuit and the source of most of the book have been instances of verification, the reader can be directly applied to their own design. Characteristic of this book is to emphasize the practical and advanced, best straightaway. This book applies to computers, electronics, control and information and other related professional college students, the majority of engineering and technical personnel also has practical value.)

这个代码是USB的控制代码，可实现USB的发送与接收数据功能。里面有4个文件，新建一个工程即可编译运行。

本代码实现了sd卡接口驱动功能，实现了在sdmode下50Mbps的读写速率，也可以通过添加额外的命令来实现100Mbps的速写速率，而文件系统的实现可以在本接口的基础上来轻松完成，从而实现针对你的应用所需要的功能，本代码非常易读，大家可以轻松看懂！

4位2选1多路选择器的设计与实现。nexy3开发板。本实验中用Verilog语句来描述。(Xilinx ISE 12.3.nexy3.)

说明：  使用vivado和Xilinx开发板实现抢答器，开发板为Xilinx Artix-7(Using vivado and Xilinx development board to achieve the responder, the development board is Xilinx artix-7)

脉冲多普勒雷达回波信号相干积累的VHDL源程序(pulse Doppler radar echo signal coherent accumulation of VHDL source)