verilog full case and paralel case directive usage

加密已经成为我们生活的一部分，我们

自己编写的经过QuartusII验证的Verilog HDL程序，可以实现常见功能-After QuartusII their written procedures for verification of the Verilog HDL, can achieve common features

本原代码中利用VHDL语言编写了RAM、FIFO、ROM等常用的存储和缓冲部件，完全的代码在ALTERA的FPGA上已经通过仿真测试，保证可用.-primitive code using VHDL prepared RAM, FIFO, ROM, and other commonly used storage and buffer components, complete code in the Altera FPGA simulation test has been passed to ensure that available.

基于FPGA的直接序列扩频发射机的设计与仿真。实验中以QuartusII 7.2 为设计和仿真工具， 各模块采用Verilog HDL设计并封装，顶层使用图形设计方式,最后得到的仿真结果使用Matlab描点来绘制出波形。 (FPGA-based direct sequence spread spectrum transmitter of the design and simulation. Experiment to QuartusII 7.2 for the design and simulation tools, the module using Verilog HDL to design and package, the top-level use of graphic design, and finally the simulation results obtained using the Matlab description points to draw waveforms.)

zedboard原理图详细，PCB板焊接方便，每个接口表明清楚。(Zedboard schematic in detail, PCB board welding is convenient, each interface that clearly.)

参数化FFT源代码，点数和位宽可变，内附testbench和说明文档-parameters of the source code FFT, counting and variable bit-enclosing testbench and documentation

axi_lite_user官方样例，精简功能，适用于zynq系列axi总线(Axi_lite_user official sample, streamline function, apply to zynq series Axi bus)

MATLAB辅助设计数字滤波器源代码，QUATUS II 实现！(MATLAB-aided design of digital filter source code, QUATUS II implementation!)

系数为4的扰码生成器，并每四位扰码产生一个触发串并转换的触发信号，可用于4b/5b编码的触发信号。verilog程序，带test程序-coefficient of the four scrambler generator, and every four scrambler have triggered a string conversion and the trigger signal can be used to trigger 4b/5b coding signal. Verilog procedures, with test procedures

从bt656数据流中提取出同步信号, 适合于搞fpga/cpld开发调式(bt656 internel sync to extern sync singal， bt656 internel sync to extern sync singal)