基于SPWM自治FPGA

基于FPGA的技术溢出研究程序，只是一个测试程序，大家可以下着用一下。-FPGA-based research process of technology spillovers is only a test procedure, we can next look forward to using.

说明：  pc与fpga之间通过千兆以太网交换机实现网络通信(Network communication between PC and FPGA via Gigabit Ethernet switch)

用vhdl编写的简易电子中设计，经过测试成功，且用记事本上载，无需阅读器进行阅读。-Use of VHDL in the preparation of simple electronic design, has been tested successfully, and use Notepad to upload without reader reading.

fpga DCM使用教程 好几个文档 帮助您一次学会使用DCM(fpga the DCM using the tutorial a few documents to help you first learn to use the DCM)

说明：  4位加法器，4位数字相加及进位功能的实现，主要利用Verilog语言实现，简单轻松，且代码量少(a adder which can realize 4 bit numbers adding)

Altera QUARTUS 7.2的矩阵键盘电子琴完整工程（含源码），在EP2C20芯片上实现-Altera QUARTUS 7.2 Project of matrix keyboard electronic organ, implement on EP2C20 chip.

 本程序应用VHDL硬件描述语言，以QuartusⅡ8.0为开发工具设计了一个具有自动演奏乐曲功能的系统，演奏乐曲为《梁祝》，具有单曲播放器功能。本程序简单易懂，可作为FPGA入门学习之用。

说明：  ad9649的fpga驱动程序,FMC接口，基于Xilinx KC705(AD9649 Evaluation Board, FMC Interposer & Xilinx KC705 Reference Design)

掌握SDRAM数据读写、刷新、初始化以及FPGA串口收发时序，熟练FIFO IP核的生成和调用。(Master SDRAM data read and write, refresh, initialization and the timing of sending and receiving of the serial port of the FPGA, skilled in the generation and invocation of the FIFO IP core.)

说明：  FIFO: First in, First out 代表先进的数据先出，后进的数据后出。Xilinx 在 VIVADO 里为我们已经提供了 FIFO 的 IP 核, 我们只需通过 IP 核例化一个 FIFO，根据 FIFO 的读写时序来写入和读取FIFO 中存储的数据。(FIFO: first in, first out represents the first out of advanced data, and the last in data is the last out. Xilinx has provided us with the IP core of FIFO in vivado. We only need to instantiate a FIFO through the IP core, and write and read the data stored in FIFO according to the FIFO read-write timing.)