这是一个HDB3编码器，可以将普通的二进制序列转化为符合HDB3编码规则的双极性序列-This is a HDB3 encoder, can be transformed into an ordinary binary sequences in order to comply with the rules of HDB3 bipolar coding sequence

浮点加法器的用Verilog实现，32位的浮点加法器(Floating point adder Verilog)

基于basys2的简单的乒乓球小游戏，通过ise13.4开发，使用语言VHDL，能够通过VGA在显示屏显示，能够实现双人对打，有计分功能。(Simple table tennis game, based on basys2 through ise13.4 development, using VHDL language, can through the VGA display shows, can achieve a double play, scoring function.)

HDMI做为视频输出输入接口已经广泛使用很长时间，主要通过TMDS差分编码传输。本实验通过在HDMI屏幕上显示彩条和输入输出环通实验，来练习视频的时序和视频颜色的表示，为后面视频处理实验做个基础。(HDMI as video output input interface has been widely used for a long time, mainly through TMDS differential coding transmission. In this experiment, by displaying color bars and input/output loop experiments on HDMI screen, video timing sequence and video color representation are practiced to lay a foundation for video processing experiments later)

AV视频信号输入后，存入SDRAM中然后在PC上面进行显示的代码。-AV video signal input into the SDRAM in the PC and then display the code above.

说明：  基于FPGA的信号发生器，产生了正弦波，方波，锯齿波和三角波四种波形，按下一次按钮，波形切换一次。按下另一个按钮，改变波形的频率(The signal generator based on FPGA can generate four kinds of waveforms: sine wave, square wave, sawtooth wave and triangle wave. Press the button once and switch the waveform once. Press another button to change the frequency of the waveform)

一个LED大屏幕接收卡的完整设计工程,有需要学习LED大屏幕控制的朋友可以参考

本设计是一个伪随机数发生器。此设计；

一个用VHDL语言编写的双端口存储器程序，可下载在FPGA中使用-Written in VHDL language using a dual-port memory program can be downloaded in the FPGA using

Encryption has become a part and parcel of our lives and we have accepted the fact that data is going to encrypted and decrypted at various stages. However, there is not a single encryption algorithm followed everywhere. There are a number of algorithms existing, and I feel there is a need to understand how they work. So this text explains a number of popular encryption algorithms and makes you look at them as mathematical formulas.