简单电子玩具的感知模块程序设计,通过外部输入信号改变内部信号.从而改变玩具的状态

基于FPGA的快速傅立叶变换实现，适合fpga工程技术人员参考设计-FPGA-based Fast Fourier Transform for fpga reference design engineers

说明：  PID算法用verilog语言实现，实测可用，由三个模块组成(The PID algorithm is implemented in Verilog language. The actual measurement is available. It consists of three modules.)

Implementation of Image Processing Algorithms in FPGA Hardware.

fpga的一些经验之谈，对初学者比较有用，都是些容易出错误的地方(FPGA some experiences, more useful for beginners, are more vulnerable to the wrong place)

使用Quartus II 9.1完成俄罗斯方块游戏，只要使用有VGA和键盘接口的FPGA开发板就行实现。操作简单，使用的是VHDL和Verilog语言(Use the Quartus II 9.1 to complete the tetris game, as long as you use a VGA and keyboard interface implementation of FPGA development board. The operation is simple, the use of VHDL and the Verilog language)

四轴动力模块，用一个顶模块控制，输入有：油门（20档）；指令；水平仪控制指令，4个输出口(Axis power modules, with a top module control inputs are: accelerator (20 files) instruction Level control instructions, four output ports)

RAM控制的VHDL实现 真的很有用 -VHDL implementation of the RAM control true true useful useful

FFT with FIR created by students in univercity

DDR2 SDRAM仿真模型，适合于ModelSim下工作，请先阅读readme-DDR2 SDRAM Simulation Model which is suitable for modelsim. Please read readme file firstly.

This code that genetes a square, sawtooth and a triangular waveform. It is useful for designing a function generator in VHDL.