I2C控制核设计,由VHDL语言编写,使普通I/O端口实现I2C性能

Frequency meter Verilog implementation for Xilinx XC2C256. MT10T7 7-seg LCD used for output.

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)

使用FPGA来控制DDS信号的产生，从而达到高频信号产生的目的。使用的DDS芯片为AD9852，在QuartusII下编写。(Using the FPGA to control the DDS signal generation, so as to achieve high-frequency signal generation purposes. Use of DDS chip AD9852, in the QuartusII prepared.)

利用verilog实现对SD卡的控制，可以实现对SD卡的读写。(Verilog SD)

Control with DAC conversion

interruption routine for PIC16F877

用游戏把子上下左右控制蛇的方向，寻找吃的东西，每吃一口就能得到一定的积分，而且蛇的身子会越吃越长，身子越长玩的难度就越大，不能碰墙，不能咬到自己的身体，更不能咬自己的尾巴，等到了一定的分数，就能过关，然后继续玩下一关。

关于5-11APSK在高斯信道中的误码率分析仿真程序，对具体调制方式及解码方式都有详细的过程(About 5-11APSK in Gaussian channel bit error rate analysis simulation program, has a detailed specific modulation and decoding process)

由乘法器组成 单边带信号产生的 仿真源代码 msm (Composed of single sideband signal by the multiplier generated simulation source code msm)

说明：  基于FPGA的QPSK调制解调电路设计与实现 (QPSK)