This is a JPEG codec the VHDL code

基于FPGA cyclone2的偶数分频模块，可实现自定义分频数(Based on FPGA cyclone2 even number of frequency divider module, custom frequency divider can be realized.)

wallace tree multiplier in verrilog

it contains pdf file which has vhdl program of uart (universal asynchoronus receiver and transmitter). which very simple and easy to understand

说明：  利用高速口GTX进行快速的数据传输，包括接受和发送模块，用途广泛(The use of high-speed port GTX for fast data transmission, including receiving and sending modules, has a wide range of uses.)

altera fpga verilog 设计的基于查找表的DCT程序及zigzag扫描程序，已经过matlab 和modelsim 验证，文件中包含TESTBENCH ，直接可用-altera fpga verilog design table DCT-based search procedures and zigzag scanning procedures, and ModelSim matlab has been verified, the document contains TESTBENCH, directly available

4dbpsk系统的设计实现源码，几个朋友用一个假期的时间协作完成，功能非常好-The 4dbpsk system design realization source code, several friends complete it cooperation in one vacation time , the function is extremely good

浮点数运算的FPGA实现，包括仿真文件。(FPGA realization of floating-point operations, including the simulation file)

格子玻尔兹曼方法模拟poiseuille流，半反弹边界，适合进阶学者(Lattice Boltzmann Simulation poiseuille stream, half rebound border for advanced scholars)

verilog实现ALU的源代码，并提供了一个详细的测试平台！-achieve ALU Verilog source code, and provide a detailed test platform!

PLL是数字锁相环设计源程序, 其中, Fi是输入频率(接收数据), Fo(Q5)是本地输出频率. 目的是从输入数据中提取时钟信号(Q5), 其频率与数据速率一致, 时钟上升沿锁定在数据的上升和下降沿上；顶层文件是PLL.GDF-digital phase-locked loop PLL design source, in which Fi is the input frequency (receive data), Fo (Q5) is the local output frequency. Objective is to extract data input clock signal (Q5), its frequency and data rate line, the clock rising edge of the lock data the rising and falling edge; top-level document is PLL.GDF