一个完整的viterbi译码程序和测试的程序

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用verilog状态机实现的自动售货机，是一次课程作业，参考了网上的例子进行了修改(Automatic vending machine implemented with Verilog state machine)

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

基于VHDL的抢答器程序,包含完整的源代码,锁脚文件以及下载文件,可直接下载使用-Answer Based on the VHDL program, including complete source code, locking pin, as well as download files documents can be directly downloaded using

本程序是fpga控制flash的读写程序，包括了程序和仿真时的测试文件(fpga flash)

使用VerilogHDL语言加上IP核产生PWM调制波，占空比和频率可调。(The PWM modulation wave, duty cycle and frequency can be adjusted by using VerilogHDL language and IP kernel..)

DDS中的正余弦生成，初始相位相差90度，可自行改变输出频率(Cosine generation of DDS, the initial phase difference of 90 degrees, the output frequency can be changed on their own)

乒乓球游戏，用led灯控制水上乒乓球，选择了控制键进行操作。详细信息请参见自述

vhdl波形发生程序.实现4种常见波形正弦、三角、锯齿、方波（A、B）的频率、幅度可控输出（方波 A的占空比也是可控的），可以存储任意波形特征数据并能重现该波形，还可完成 各种波形的线形叠加输出。 -vhdl waveform occurred procedures. 4 achieve common sinusoidal waveform, 1.30, sawtooth, square-wave (A, B) the frequency and amplitude control output (square A duty cycle is also controllable), can store data of arbitrary waveform characteristics and able to reproduce the waveform, but also through a variety of linear superposition of the waveform output.

A controller for DDR2 on FPGA with vhdl, content testbench, model and textfile-generation/data-detection using python.