数字代码管显示0-9

FPGA实现FFT算法的源代码及工程文件，此工程为ISE工程项目。有详细的说明，可以运行。(FPGA Implementation of FFT algorithm source code and project files, this works for the ISE project. There are detailed instructions, you can run.)

说明：  一个使用VHDL进行正弦波信号产生的历程，非常有用。(A sine wave signal generator using VHDL for the course, very useful.)

This is hardware implemented Gaussian random number generator based on the article attached in the folder "Document" The system is based on the Ziggurat Gaussin random algorithm and implemented when I was under-graduate. Although it is not my original system, it is so helpful cause I can acquire a lot of useful skills of verilog programming such as pipeline. It is well simulated on the synthesis tool (ISE14.7) and the printed data can be verified using Matlab which is in the "Document" folder. The testbench fils is tb_Zigg.v, and the top module file is top_Zigg.v Goodlucks~

说明：  用FPGA实现CNN算法，实现CNN加速(Realization of CNN Algorithms with FPGA)

matlab 程序 伪随机码的捕获,我传的都是这方面的资料！(failed to translate)

简单的232-485通信程序！主要是串口跟485之间的通信，起到发送接收然后再另一边显示的功能！(Simple 232-485 communication program!)

fpga的一个小程序用于3s500e 4*4键盘模块(fpga is a small program used 3s500e 4* 4 keyboard module)

Xilinx vivado 权威教程，清华大学出版社出版，何宾编著。(Xilinx vivado authoritative course, published by Tsinghua University Press, edited by He Bin.)

对于重点：蛇身控制算法，我开始的想法是将每个格子的坐标输入到存储器中，但由于过于繁琐和笨拙，我改为：保留头部的完整数据（位置、方向），其他部分只保留方向数据，并在VGA模块里面直接对蛇身进行控制，但是这个方案有一个弊端：它按照蛇身顺序刷新图像，每一帧图像只能刷新一个格子，时序存在问题并且刷新频率过慢，放弃了这个方案。 最终，将蛇身模块单独提出，各个模块协同工作，有效解决了时序问题和刷新问题。蛇身控制上，只控制蛇头，其他部位随头联动，完成了最终设计。

M25P64-SPI-FLASH芯片的FPGA控制程序，已仿真验证(M25P64- SPI- FLASH chip FPGA control program, simulation)