test bench for alu 6 functions

说明：  使用vivado和Xilinx开发板实现抢答器，开发板为Xilinx Artix-7(Using vivado and Xilinx development board to achieve the responder, the development board is Xilinx artix-7)

这是本人写的可显示128*64LCD全屏汉字的程序,直接下到片子里即可出现象(需自己定制ROM).想显示第二屏的话只需加一个状态即可.-I write this is the display of 128* Embedded full screen characters procedures, directly to the unit under the blankets will be out phenomenon (it-yourself customized ROM). to the second screen shows only the state can be a plus .

用VIVADO软件编写的，实现以太网芯片88E1510中的mdio控制模块代码，并且含有VIO仿真文件(Written in VIVADO software, the realization of the Ethernet chip 88 e1510 mdio control module of code, and contains the VIO simulation file)

一个很好的利用verilog编程实现的cpu程序，一定要好好利用。-a good use of the Verilog Programming cpu procedures, we must make good use of.

说明：  一种用verilog语言实现的霍夫曼压缩编码算法(Huffman compression implemented by Verilog)

此为实现第14.7.9章所需的激励文件 该代码为门级RTL描述。(Stimulus file to verify Section 14.7.9 the functionality of gate vs. RTL description.)

模拟SDH帧结构，设计了状态机，能从连续传输的SDH字节流中找出帧头；从SDH字节流中，提取E2字节，并按照64K速率分别串行输出E2码流及时钟；设计了输入信号，输出包括E2串行数据、E2串行时钟和SDH帧头位置指示

altera官方的各种有用的参考资料，都是自己收集的，遇到问题可以很方便的查看(altera official variety of useful references, are their own collection, problems can easily view)

-- State machine for reading data from Dallas 1621 -- -- Testsystem for i2c controller--- State machine for reading data from Dall as 1621---- Testsystem for i2c controller

根据软件无线电的思想，提出了一种新颖的数字信号处理算法，对QPSK信号的相位进行数字化处理，从而实现对QPSK信号的解调.该算法允许收发两端载波存在频差，用数字锁相实现收发端载波的同步，在频偏较大的情况下，估算频偏的大小，自适应设置环路的带宽，实现较短的捕获时间和较好的信噪性能。整个设计基于XILINX公司的ISE开发平台，并用Virtex-II系列FPGA实现。用FPGA实现调制解调器具有体积小、功耗低、集成度高、可软件升级、扰干扰能力强的特点，符合未来通信技术发展的方向。(According to the idea of software radio, a novel digital signal processing algorithm, the phase of QPSK digital signal processing, enabling the demodulation of QPSK signals. This algorithm allows the sending and receiving ends of the carrier frequency difference exists, using digital phase-locked to achieve synchronization of sending and receiving end of the carrier, in the case of large frequency offset, frequency offset estimation of the size, adaptive set the loop bandwidth to achieve shorter acquisition time and better noise performance. The whole design is based on the company XILINX ISE development platform, and Virtex-II series with the FPGA. FPGA realization of a modem with a small size, low power consumption, high integration, software upgrades available, the characteristics of strong interference interference, in line with the future direction of ICT development.)