里面是VHDL的一些例子，大家可以看一下，蛮不错的，对大家提高VHDL水平很好的....

VHDL Programing

说明：  基于fpga的verilog实现ad及uart，并进行仿真验证(Verilog based on FPGA implements AD and uart, and carries out simulation verification)

xilinx ddr3最新VHDL代码,通过调试(xilinx ddr3 latest VHDL code through debugging)

fpga高手设计实战真经100则,最新的FPGA英文书籍，值得参考学习(100 Power Tips for FPGA Designers，The new FPGA English books, worth learning)

红色飓风II开发板USB2FPGA USB驱动程序，由verilog编写，包括源码和FIFO测试程序(Red Hurricane II development board USB2FPGA USB driver from verilog preparation, including source code and test procedures FIFO)

说明：  verilog实现misp架构，并且支持modelsim仿真(Verilog implements MISP architecture and supports Modelsim simulation)

这是Verilog语言的if else 语句的优化，不同的写法，编译出来，结果会有很多不同。请大家自己斟酌。-see the Chinese

内有一PCI 主 和PCI从，PCI TARGET 都是公开代码的，是工程文件，有仿真工程，使用说明。觉得好的就推荐一下。 本PCI_HOST目前支持： 1、 对目标PCI_T进行配置； 2、 对目标进行单周期读写； 3、 可以工作在33MHZ和66MHZ 4、 支持目标跟不上时插入最长10时钟的等待。 ALTERA的PCI竟然收费的！！！软件里面调试仿真了半天，终于调通了，到了下载就突然弹出窗口说包含了有限制的IP CORE，是限制使用的-There is a PCI from PCI proprietors, PCI TARGET is open source, is the project document, there is simulation project, for use. Feel good about the recommendation. The PCI_HOST currently supports: 1, on the target configuration PCI_T 2, on the target for single-cycle read and write 3, can work in the 33Mhz and 66MHZ 4, to support the goals behind to insert a maximum of 10 clock hours of waiting. ALTERA the PCI even charges! ! ! Inside simulation software debugging for a long time, and finally had transferred to the download on the sudden pop-up window that contains a limited IP CORE, is to restrict the use of

sub opercore USB CRC5 and CRC16 Modules //// //// //// //// //// //// Author: Rudolf Usselmann //// //// rudi@asics.ws //// //// //// //// //// //// Downloaded from: http://www.opencores.org/cores/usb/(sub opercore USB CRC5 and CRC16 Modules//////////////////////// Author: Rudolf Usselmann//////// rudi@asics.ws//////////////////////// Downloaded from: http://www.opencores.org/cores/usb/)

挂靠在AMBA2.0的AHB总线上的DMA装置，用于直接发起数据传输。(Anchored the DMA devices the AHB bus AMBA2.0, for initiating data transfer.)