基于DE2的直接数字频率合成(DDS)设计

说明：  滤波器就是对特定的频率或者特定频率以外的频率进行消除的电路，被广泛用于通信系统和信号处理系统中。(Filter is a circuit that eliminates specific frequencies or frequencies other than specific frequencies. It is widely used in communication systems and signal processing systems.)

基于veilog语言的交通灯控制系统，无左转灯，自制数字电子技术课程设计，仿真通过，由于是多个程序拼接外加本人水平有限，可能结构略有杂乱。

哈希算法FPGA实现代码，采用MD5算法，并给出了仿真波形。(MD5 hashing algorithm for FPGA implementation code)

详细讲解Slave FIFO模式下的初始化设置和相对应寄存器说明(Explain in detail the initial setup Slave FIFO mode and the corresponding register description)

配置GTH ip的例子工程，选用7 series 芯片的GTH 113quad的四个通道，在程序中每个链路利用自己的恢复时钟进行数据解码，所以四个通道可以各自独立运行；成功工作在2.54Gb/s的链路状态，长时间（>24小时）的测试，误码率一直为0.(The GTH ip example project is configured with four channels of the GTH 113quad of the 7 series chip. Each link in the program uses its own recovery clock for data decoding, so the four channels can operate independently; the successful operation is at 2.54Gb/ The link state of s, long time (>24 hours) test, the bit error rate has been 0.)

RS 编码和解码Verilog Code, 实现了RS（204,188)的编码和译码；(RS Coding and Decoding Verilog code，　implement RS（204,188) )

可以产生正弦波，三角波、锯齿波、方波，要求频率1Hz-100kHz，步进1Hz，具有自动扫频功能； 正弦波的相位可调，方波的占空比可调； (Can generate sine wave, triangle wave, sawtooth wave and square wave, the required frequency of 1 hz- 100 KHZ, step 1 hz, with functions of automatic frequency sweep The phase adjustable sine wave, square wave duty ratio is adjustable )

利用verilog驱动LCD1602 本实验是用LCD1602显示英文。（LCD带字库）(//Use verilog driver LCD1602// video tutorial for all of us 21EDA e-learning board// The experiment is LCD1602 display in English. (LCD with font))

基于AD9226的ad转换程序资料，从采集到数位转换再到模量转换(AD conversion program data based on AD9226)

基于Xilinx Spartan6系列的fpga的VGA实现(Based on Xilinx Spartan6 series fpga VGA implementation)