本教程介绍了如何与IO设备在DE2板和H.

一款在Verilog实现的吃豆人游戏，采用VGA接口，在Nexys3开发板上运行无误。(A pac-man game implemented via Verilog, using VGA interface, perfectly run on Nexys 3)

最近在做毕设，ldpc码的编解码实现，这个是verilog实现。(Recently completed the set up to do, ldpc code codec implementation, this is the Verilog implementation.)

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.

vedic multiplication

固定的 128 点复杂 FFT 或 64/8/16 点

de2 70 开发板的演示程序，verilog语言编写，视频输入输出(de2 70 development board demo program, verilog language written, video input and output)

减1计数器 一、设计要求 用Verilog HDL语言设计一个计数器。 要求计数器具有异步置位/复位功能，可以进行自增和自减计数，其计数周期为2^N（N为二进制位数）。 二、设计原理 输入/输出说明： d：异步置数数据输入； q：当前计数器数据输出； clock：时钟脉冲； count_en：计数器计数使能控制（1：计数/0：停止计数）； updown：计数器进行自加/自减运算控制（1：自加/0：自减）； load_d-a counter a reduction, design requirements using Verilog HDL design of a counter. Asynchronous requests with counter-home/reset functions can be carried out by self and self-count reduction, cycle counting of 2 ^ N (N for binary digit). Second, the principle of design input/output Description : d : asynchronous home several data input; Q : The current counter data output; Clock : clock pulse; Count_en : Counting enable control (1 : Counting/0 : Stop counting); Updown : dollars several self-Canada/reduction Operational control (1 : Since the plus/0 : Since decrease); load_d

vhdl 中各种数据类型的转换实现,可以调用函数库实现-date type change

VHDL上百实例 包括 ADDER LATCH FIPPER AND ETC..(VHDL hundreds of examples, including ADDER LATCH FIPPER AND ETC ..)

能产生正弦波、三角波、方波和e指数衰减的扫频波，且相关参数可调(Can produce sine wave, triangle wave, square wave, and e exponential decay wave sweep and adjustable parameters)