一些较为经典的VHDL代码,专注于信号分析与检测方面

说明：  数电实验FPGA verilog代码，包括秒表、全加器、半加器等。(FPGA Verilog code for digital experiment)

doulos公司出的VHDL学习工具，非常易学易懂！~(doulos company out of the VHDL learning tool, very easy to understand! ~)

用verilog hdl硬件描述语言实现多人抢答器功能，有计时，计分，报警等功能。-Using hardware description language verilog hdl people realize Answer feature, have timing, scoring and alarm functions.

用verilog 语言实现七人投票表决器(verilog seven voting)

QuartusII简介手册+中文版 本手册针对的读者是 Quartus II 软件的初学者，它概述了可编程逻辑设计中 Quartus II 软件的功能。 不过，本手册并不是 Quartus II 软件的详尽参考手 册。 相反，本手册只是一本指导书，它解释软件的功能以及显示这些功能如 何帮助您进行 FPGA 和 CPLD 设计。-QuartusII brochure+ Chinese version of the manual is aimed at readers of Quartus II software for beginners, it provides an overview of programmable logic design in Quartus II software. However, this manual is not the Quartus II software, a detailed reference manual. Instead, this manual is a guide book, which explained the functions of the software and show how these features help you to FPGA and CPLD design.

processor design istruction load pipeline ,hazard

旋转LED 实现自适应转速 字幕滚动 对接的程序(Rotating LED Adaptive Speed ​ ​ subtitles scroll docking program)

基于FPGA的DDS。可以产生三种波形：正弦，方波，三角波。频率分辨率0.012Hz。频率从0至25MHz任意可调。(FPGA-based DDS. Can produce three waveforms: sine, square, triangle wave. Frequency resolution 0.012Hz. Frequency is adjustable from 0 to 25MHz.)

数字钟(Digital clock)

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)