基于nios ii 控制altera de1 开发板上iic总线实现与at24c02通信

A Dec example written in VHDL.

4人抢答系统，可以计时20秒，20秒无人抢答则视作无人抢答。start之前抢答者视为违规抢答，违规抢答会警告选手。若有一人抢答则其他3人锁定，不可再抢答。aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

FPGA上用verilog写的SPWM控制程序，完美运行！自由调试，毕设内容，十分宝贵(The SPWM control program by verilog FPGA perfect run! Free commissioning, Bi-based content, invaluable)

实现扰码的功能，主要为64位在pcs子层传输的扰码器设计(To achieve the functions of scrambling code)

适用于满足I2C协议的flash读/写操作程序，只需要设置要读/写的字节数，就可以直接使用！-Applicable to meet the I2C protocol flash read/write operations, only need to set to read/write number of bytes can be used directly!

在接收信号的数字化、软化的实现中,数字下变频起着重要的作用。本文首先介绍了数字下 变频的组成结构,然后详细分析了数字下变频的工作原理,描述了在实现数字下变频时,设计方案所 采用的高效滤波器———CIC 滤波器和多相抽取滤波器的结构和原理。最后,用通过Simulink 对数字 下变频的性能进行了仿真。在仿真的基础上使用Insight 公司的FPGA 开发系统,用测试电路实测了 数字下变频的性(In the receiving digital signal, softening the realization, the digital down-conversion plays an important role. This article first introduced the digital down conversion of the composition, and then a detailed analysis of digital down conversion of the working principle described in the realization of digital down conversion, the design used in high-performance filters--- CIC filters and multi-phase extraction filter structure and principle. Finally, with the adoption of Simulink for digital down-conversion performance of the simulation. In the simulation based on the use of Insight s FPGA development system is measured using the test circuit of the digital down-conversion of)

user_logic_VGA_Controller，适合于DE2开发板，把这个文件夹放在工程目录之中，就可以在SOPC里直接添加VGA_Controller IP核了，很方便使用。-user_logic_VGA_Controller. suitable for Dictyophora development board, this folder on the project directory, it can be added directly SOPC Lane VGA_Controller IP core, very convenient to use.

statemachine project for my school

ALTERA FPGA CLPD

说明：  基于FPGA 黑金ALINX 515的 ADDA采样模块源码（需调试）(ADDA Sampling Module Source Code Based on FPGA Heijin ALINX 515)