自已写的一个16X16的乘法器，速度比较慢。初学者练习练习！

由于在网上很难下载到EDA技术－窦衡的PPT，所以本人经过学习后做成word，供大家下载。只针对VHDL语言部分和所有的程序。-Because the Internet is difficult to download to EDA technology- Douheng of the PPT, so I made after learning after the word, for all to download. Only for part of the VHDL language and all the procedures.

：采用FPGA来实现一个基于OFDM技术的通信系统中的基带数据处理部分，即调制解调器。其中发射部分的调制器包括：信道编码（Reed-Solomon编码），交织，星座映射，FFT和插入循环前缀等模块。我另外制作了相应的解调器，可以实现上述功能的逆变换。(: Using FPGA to implement a technology-based OFDM communication systems in base-band data processing part of the modem. One part of the modulator launch include: channel coding (Reed-Solomon coding), interleaving, constellation mapping, FFT and cyclic prefix insertion modules. I also produced a corresponding demodulator can achieve the above-mentioned inverse transform function.)

本代码可以用于产生正余弦信号波形，利用FPGA内部的ROM放置一个正余弦采样点的数据表格，通过循环取址的方法，实现波形连续输出。-This code can be used to generate positive cosine signal waveforms, using FPGA" s internal ROM to place a sampling point is the cosine of the data tables, the circulation method of taking the site to achieve a continuous output waveform.

使用VHDL编写数字蜂鸣器音乐，整个项目文件，可直接使用 (Use VHDL to write 1602led driver, the entire project file, and can be used directly.)

用verilog编写在FLEX10K上实现的简易CPU-used in the preparation of Verilog FLEX10K achieve simple CPU

使用nios2点亮一个led灯，使用软件quartus13.0，开发板de2-115(nios2 led quartus13.0 de2-115)

misp顶层文件，verilog实现misp架构，并且支持modelsim仿真(Verilog implements MISP architecture and supports Modelsim simulation)

FSK模拟信号源，利用ISE7.1或以上环境打开。(FSK signal simulator.The project can be open in ISE7.1 or upgrade version.)

vc707 board getting started guide

Quartus环境下多路选择器的编写代码，适合初学数字逻辑设计的进行学习(MUX in Quartus)