串口程序，基于VHDL 的，很好的程序 快下吧

基于FPGA的游戏实例，开发板为Xilinx的basys3，VGA显示(Basys3, VGA Display of Xilinx Development Board Based on Game Example of FPGA)

用VERILOG语言实现的通用异步串行收发器（RS232收发器），波特率可设置，通讯稳定，已成功应用于实际项目。(VERILOG language with universal asynchronous serial transceivers (RS232 transceiver), the baud rate can be set, communication stability, has been successfully applied in actual projects.)

（1）能够测试10HZ~10MHZ的方波信号； （2）电路输入的基准时钟为1HZ，要求测量值以8421BCD码形式输出； （3）系统有复位键； （4）采用分层次分模块的方法，用Verilog HDL进行设计，并对各个模块写出测试代码； （5）具体参照说明文档（包含源代码，仿真图，测试波形，详细的设计说明）(A square wave signal capable of testing 10HZ~10MHZ; (2) the reference clock input by the circuit is 1HZ, and the measured value is output in the form of 8421BCD code; (3) the system has a reset key; (4) adopt the method of layering sub sub module and design with Verilog HDL; (5) write test simulation program.)

说明：  基于ALINX AX7020硬件平台的USB-OTG通信程序。操作系统采用uCOS III v1.41，基本实现了双向USB2.0 块传输（Bulk Transfer）通信，zynq的PS端接收USB数据并回传至主机。经测试，主机端Window10系统采用libUSBK编程时，采用64字节的块时，传输速率可达210Mbps。zynq开发工具为Vivado2015.4，程序包中包含了全部的硬件和软件工程文档。(A USB-OTG communication project where an AX7020 platform is employed as USB device. The embeded operating system is uCOS III of version 1.41, and the FPGA toolchain is Vivado 2015.4. This project implements a full speed bidirectional USB2.0 bulk transfer. A test on Windows 10 host with libUSBK shows that the transfer speed is up to 201Mbps.)

    本资源详细的设计了一个FIFO的用法，将数据从ROM中读取送到FIFO缓存中然后RAM从FIFO缓存中读取数据存到内存中，改程序可以很好的学习三者之间的关系

在这个项目中我们使用 DE2 115 板上显示每次通过转移在左边按下某个键滚动你好。 这种架构使用管道和多路复用器

Computer Architecture Handbook on Verilog HDL

说明：  常系数有限域乘法器，verilog DHL源码(Constant coefficient finite field multiplier, verilog DHL source)

　　本文对数字基带信号脉冲成型滤波的应用、原理及实现进行了研究。首先介绍了数字成型滤波的应用意义并分析了模拟和数字两种硬件实现方法，接着介绍了成形滤波器设计所需要MATLAB软件，以及利用ISE system generator在FPGA上进行滤波器实现的优势。文中给出了成形滤波函数的数学模型，讨论了几种常用成形滤波函数的传输特性以及对传输系统信号误码率的影响。然后介绍了本次设计中使用到的数字成形滤波器设计的几种FIR滤波器结构。把各种设计方案进行仿真，比较仿真结果，最后根据实际应用的情况并结合设计仿真中出现的问题进行分析，得出各种设计结构的优缺点以及适合应用的场合。(In this paper, the application of the principles and implementation of digital baseband signal pulse shaping filter is studied. First introduced the significance of digital shaping filter application and analysis of both analog and digital hardware implementation, then introduces the shaping filter design requires MATLAB software, and the use of ISE system generator on the FPGA to achieve the advantages of the filter. This paper presents a mathematical model of shaping filter function, the transmission characteristics discussed several common shaping filter functions and the impact on the error rate of the signal transmission system. Then introduced the use of this design to several digital shaping filter design FIR filter structure. The various design simulation, compare the simulation results, and finally according to the actual application and combine design simulation to analyze problems, come and where appropriate to the application advantages and disadvantages of various design s)

说明：  在FPGA板卡上面，通过单个按键实现串口的发送功能，带仿真需要自行修改一下工程配置(On the FPGA board, the sending function of the serial port is realized by a single key, and the engineering configuration needs to be modified by the simulation)