Several Example FPGA design contest

基于fpga的位同步信号提取仿真 使用vhdl语言 quartus(To use vhdl language quartus fpga bit synchronization signal extraction-based simulation)

这是我自己写的一个摄像头数据存储SD卡程序，quartus的verilog编写，摄像头采用自己添加的外设接口，数据采用dma采集，SD用的是软件自带的SPI内核以及znFAT的文件系统。帧率我没有测，有兴趣的可以测测，初学者可以参考学习，写的代码有点乱，如果有不懂的可以和联系。(This is what I wrote it myself a camera, SD card data storage program, quartus the verilog write, add their own camera with peripheral interfaces, data acquisition using dma, SD with the software that comes with SPI znFAT kernel and file system. I did not measure the frame rate, are interested can Cece, beginners can refer to the study, wrote the code a bit messy, if there do not understand can contact)

四位拨妞开关作为输入，当输入值变化时将其转化成两位输出(The four DIP Niu switch as an input, when the input value changes, be converted into two output)

FPGA实现的LCD接口，VHDL编程,FPGA芯片为ALtera公司的EP2c35-FPGA realization of the LCD interface, VHDL programming, FPGA chips for Altera

这是二十四进制计数器的源程序，有需要的同学可以参照一下！(This is 24 hexadecimal counter source, needy students can refer to you!)

高速DDR存储器数据接口设计实例. 1. 将文件拷入硬盘 2. 产生DQS模块 3. 产生DQ模块 4. 产生PLL模块 5. 拷贝以上步骤生成的文件到子目录【Project】中 6. 打开子目录【Project】中的DataPath.qpf工程，设计顶层模块 7. 编译并查看编译结果 (High-speed DDR memory interface design data. 1. Copyed into the document hard disk 2. DQS generated module 3. Have a DQ module 4. Have a PLL module 5. Copies of the above steps to generate a document to a subdirectory 【Project】 6. Open the subdirectory 【Project】 DataPath.qpf in engineering, design top-level module 7. compilers to compile the results and see)

提供了《自己动手写CPU》本书每一章涉及的OpenMIPS源代码、测试程序。(It provides the OpenMIPS source code and test program in each chapter, which is written in the book "do it yourself CPU".)

三十个vhdl源码，对于刚开始学习vhdl的很有帮助，可以帮助理解数字电路-30 vhdl source for the beginning of the study vhdl helpful, and can help to understand digital circuit

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.

使用metlab生产正弦波和三角波的采样值，供vhdl等语言调用来产生波形(use metlab production sine wave and triangular wave of sampling, for languages such as call vhdl to generate waveforms)