实用的程序代码，希望对大家有用，已经调试通过

基于fpga的物理不可克隆函数（PUF）模块的实现(A PUF Design for Secure FPGA-Based Embedded Systems)

canbus verilog实现，原代码文件-canbus verilog implementation, the original source document

FPGA的仿真实例，Verilog代码编写，过程详尽，代码易懂。第三个文档-FPGA simulation examples, Verilog coding, the process in detail, code easy to understand. The third document

基于OV7670采集，SDRAM缓存，sobel处理，VGA显示的工程，内有全部代码，基于QUARTUS开发板实现。 FPGA 边缘检测(Based on OV7670 acquisition, SDRAM cache, sobel processing, VGA display project, with all the code, based on QUARTUS development board. FPGA edge detection)

verilog编写的DAC2902程序，用于高速的数模转换(verilog language,using for DAC2902 digital analog converter)

FAST HADAMARD TRANSFORM VERILOG FOR IMAGE PROCESSING

VGA 测试程序，可显示彩色条纹，用vhdl语言编写，经过测试，运行稳定，带有注释！-VGA test procedure can be displayed color stripes, using VHDL language, tested and stable operation with Notes!

usb控制器，有VHDL实现的，还有C++的源码，可以编译-usb controller, there is the realization of VHDL, as well as C++ source code can be compiled

说明：  4位数码扫描显示电路,我们控制一个七段LED需要8个输出端口；如果要输出四位十进制数，就需要32的输出端口，这将占用大量的端口资源。采用串行扫描显示，我们只需要8+4共12个端口即可。其原理是：用一个四位的输出端控制，某一时刻只选中其中的一个LED（输出为‘1’表示选中），八位的输出端将该LED所需要显示的值输出；然后四位的输出端值改变，选中下一个LED。这样依次类推。如果选择的频率很快，达到50Hz以上，由于人眼的视觉暂留效应，看起来就像4个LED同时显示。 设计一个程序，输入四个一位十进制数，用4个LED显示出来。CLK采用频率可调信号发生器，逐渐改变频率，观察扫描频率的改变对输出效果的影响。 输入：连续脉冲，逻辑开关；输出：七段LED。 (4 digital scanning display circuit, we need to control a seven-segment LED output port 8 If you want to output four decimal numbers, you need the output port 32, which will take up a lot of ports. Serial scans showed, we need only 8 of 12 ports can be+4. The principle is: the output of four with a control, a time to select only one LED (output 1 is selected), 8 output of the LED by the need to show the value of the output then The output value of the four changes, select the next LED. This and so on. If you select the frequency rapidly, reaching more than 50Hz, as the human eye s persistence of vision effect, looks like a 4 LED display simultaneously. Design a program, enter a decimal number four, with four LED display. CLK signal generator with adjustable frequency, gradually changing the frequency of observed changes in scan frequency effect on the output. Input: Continuous pulse, logic switches output: seven-segment LED.)

逆变器并网发电的主要是逆变器输出正弦波电流的控制技术，要求与电网同频同相的电流，此matlab模型中使用锁相环技术，恒功率控制，LCL滤波器技术使达到并网要求(Constant_PQ_Microgid )