The use of Altera' s FPGA

基于VHDL开发的自动售货机系统，可实现自动售货过程中的基本功能，具有一定的代表性。-VHDL-based development of a vending machine system which can automatically process the basic functions of sales, with a certain representativeness.

直接数字式频率合成器DDS设计、Verilog。 产生的信号可以是正弦波或方波、三角波、锯齿波等，自选。 采用DDS技术，将所需生成的波形写入ROM中，按照相位累加原理合成任意波形。 此方案得到的波形稳定，精度高，产生波形频率范围大，容易产生高频。 本实验在设计的模块中，包含以下功能： （1）通过 freq 信号输入需要的频率的值； （2）通过 wave_sel 信号选择所需的波形； （3）通过 amp_adj 信号选择波形放大的倍数。(DDS design of direct digital frequency synthesizer, Verilog. The generated signal can be sinusoidal or square wave, triangular wave, sawtooth wave and so on, optional. By using DDS technology, the required waveforms are written into ROM, and arbitrary waveforms are synthesized according to the principle of phase accumulation. The waveform obtained by this scheme is stable, accurate and easy to generate high frequency waveform. This experiment includes the following functions in the designed module: (1) Input the required frequency value through freq signal; (2) Choosing the required waveform by wave_sel signal; (3) Select the multiplier of waveform amplification by amp_adj signal.)

FFT变换的IP核的源代码 VHDL~-FFT IP core of the source code for VHDL ~

RS 编码和解码Verilog Code, 实现了RS（204,188)的编码和译码；(RS Coding and Decoding Verilog code，　implement RS（204,188) )

利用verilog写的PWM 程序，来实现产生呼吸灯的效果。(Using xerilog to generate breathing lamp)

The deep lecture notes for basic digital system for cmos design

FPGA流水线设计的资料，可以作为学习FPGA开发并行操作的一个经典教材，具有很好的指导作用。(FPGA pipeline design information can be developed as a learning FPGA parallel operation of a classic textbook, has a good guide.)

采用systemc语言设计了一个状态机，主要包括两个进程，仿真结果表明状态机可以正常工作-Systemc language designed using a state machine, mainly consists of two processes, the simulation results show that the state machine can work properly

一篇讲述如何在pspice软件中仿真忆阻器（memristor）替代蔡氏混沌电路中的非线性电阻进而观察研究混沌相图的文献(How about a software simulator pspice memristor (memristor) alternative Chua' s chaotic circuit chaotic nonlinear resistance and then observe the phase diagram of the literature)

关于SPWM调制设计VHDL代码 关于SPWM调制设计VHDL代码(SPWM modulation on the design of VHDL code design on the VHDL code modulation SPWM)