vhdl,七段数码管驱动程序，完成数字显示功能

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。

实现dds功能，利用quartus软件， 子模块包括加法器，锁相环，date-rom 利用原图将各模块综合，利用ps2键盘控制频率及相位。-Dds realize functions, using Quartus software, sub-modules including the adder, phase-locked loop, date-rom image to the module using integrated, using ps2 keyboard to control the frequency and phase.

利用verilog语言设计公共电话共包括以下几个状态：挂机、待机、身份确认、修改密码、通话等五个状态。内含详细的源码以及设计过程、模块-The use of public telephones were verilog language design include the following states: hang up, standby, identification, change passwords, call the five states. Includes a detailed source code as well as the design process, the module

wavelet transform of a signal,it is important and useful code to trans form frequency to time domain

说明：  基于无源蜂鸣器和矩阵按键的电子琴系统设计(design of Electronic Piano System Based on Passive Buzzer and Matrix Key)

通信中卷积交织/解交织FPGA源程序，采用verilogHDL代码实现，包含测试程序，经过验证。(Communication in the convolutional interleaving/de interleaving FPGA source program, using verilogHDL code to achieve, including test procedures, after verification.)

camping checklist for outback campers. A must for deep forest hikers.

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UART_DMA的方法是使用nios实现UART方式实现DMA传输，在硬件平台上通过验证实现(UART_DMA way is to use uart dma transfer nios implemented in the hardware platform validated by)

matlab bpsk with rayleigh performance expirement