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。...

VHDL常用源程序，希望以EDA技术学习者有用！-VHDL source code commonly used, I hope to EDA technology learners useful!

本资源包括了加法器的VHDL代码实现，供大家学习。

2维4节点的UEL单元，嵌入UMAT，采用j2 mises屈服准则(2d4nodes uel elements, with umat codes, and j2 mises flow rule)

数字化，宽带化，是当今无线通信的重点主流方向，FPGA以其功能强大，开发周期短，投资少，可重复修改，开发工具智能及软件可升级等特点成为无线通信首选。(Digital, broadband, is the focus of today s mainstream wireless communications, FPGA with its powerful, short development cycle, low investment, repeatable modify, intelligence and software development tools and other characteristics can be upgraded to become the first choice of wireless communication.)

用窗函数法设计一个线性相位FIR数字低通滤波器，用理想低通滤波器作为逼近滤波器，通带截止频率为0.2 ，阻带截止频率为0.4 ，阻带衰减不小于-40dB。(Window function method to design a linear phase FIR digital low-pass filter, as an ideal low-pass filter for approximation filter passband cutoff frequency of 0.2 stopband cutoff frequency of 0.4, the stop-band attenuation of less than-40dB.)

这是一个项目，设计一个计数器和 vhdl 语言文本液晶屏上显示。为了文本液晶屏上显示我们都用 vhdl 语言设计了液晶显示控制器。

16 bit switch input view in hexa format on 7seg display

writing testbench in system verilog

一个在CPLD，EPM70128上实现的PWM控制源程序。-A CPLD, EPM70128 realize the PWM control on the source.

crc校验,经验证正确,下载就可直接用,有不足的地方可以指正,-CRC check, certified correct, you can download directly, there are deficiencies can correct me,