Xilinx V5 FPGA详细规格、编程FPGA参考，系统设计…

NCO 代码设计 使用VHDL语言 (nco)

Testbench 不仅要产生激励也就是输入，还要验证响应也就是输出。当然也可以只产生 激励，然后通过波形窗口通过人工的方法去验证波形，这种方法只能适用于小规模的设计(The Testbench not only to generate incentives to input, verify that the response is output. Of course, can only produce Incentive, and then the waveform by the waveform window by artificial means to verify, this method is only applicable to small-scale design)

ZBT SRAM控制器参考设计，xilinx提供的VHDL源代码-ZBT SRAM controller reference design for Xilinx VHDL source code

卷积码（213）的编译码，VHDL语言编写的整个工程文件，带有仿真结果图。(Convolution code (213) codec, VHDL language of the whole project file with the simulation results shown in Fig.)

vhdl经典实例――信号灯控制，入门者必须掌握-vhdl classic example-- to control lights, beginners must master

并口通讯代码 并口通讯代码（调试通过） --该代码目前能实现单个字节的收发-Parallel communications code (debugging through)-- The code can now achieve a single byte of Transceivers

SD卡读写源代码.用Verilog编写.很不错.值得借鉴.特别对SD卡开发的人员!(SD card reader-writer source code. Prepared to use Verilog. Is pretty good. Be used for reference. In particular, the development of personnel SD card!)

用VERILOG编写的VGA字符显示，可以在电脑屏幕上显示字符,已通过测试(Prepared with the VERILOG VGA character display, can display characters on a computer screen, has been tested)

一个简易的数字频率计，可以对一个输入的信号频率进行测量并显示输出，适合VHDL的初学者-A simple digital frequency meter, you can enter the signal of a frequency measurement and display output, suitable for beginners VHDL

说明：  等精度测频法，有需要的可以下载看看哟，word中包含的代码(Equal Precision Frequency Measurement Method)