这是很全的标准库啊，不是1164.vhd，都是一些加，乘，除，平方等操作的包来的．...

这是篇<基于FPGA 的OFDM 宽带数据通信同步系统设计与实现>, 觉得甚是有用，大家共同学学。(This is the article <FPGA-OFDM-based broadband data communication systems design and implementation of synchronous> that even be useful, we all learn together.)

8位有符号编码的整数基改性

vhdl code for register and detemines how register works -vhdl code for register and detemines how register works

these is about code for dlx processor

this is a Multiplier and Accumulate (MAC). written in VHDL

24小时时钟设计程序，含有时，分，秒的电路设计，基于VHDL语言，用Quartus 2程序实现。-24-hour clock design process, with hour, minute, second circuit design, based on the VHDL language, using Quartus 2 program.

色彩空间转换硬件实现，用于图像处理，编码，解码部分-Color space conversion hardware for image processing, encoding, decoding part of the

a code to display in VGA using VHDL lang

小波包分解，重构轴承振动信号，Hilbert包络，FFT进行频谱分析，以获得轴承故障频率。(Wavelet packet decomposition, reconstruction of bearing vibration signal, Hilbert envelope, FFT spectrum analysis to obtain the bearing fault frequencies.)

说明：  实现在屏幕上显示绿色和红色相间的水平条纹。其中，vga_640x480模块将产生行同步信号hsyn和场同步信号 vsync; vga_stripes模块将产生red、green和blue三个输出。(The horizontal stripes of green and red are displayed on the screen. Among them, vga_640x480 module will produce line synchronization signal Hsyn and field synchronization signal vsync; vga_stripes module will produce red, green and blue three outputs.)