用NiosII实现的数字钟，经过本人测试运行正常，开发环境：QuartusII6.0和NiosII IDE6.0...

KDP晶体二倍频与三倍频；基于耦合波方程组；已于实验结果校核 (Sum Frequency in KDP)

PS2键盘控制程序实验的内容是用EDK建一个简单的系统并加入自定义的外设(一个ps2键盘控制器) 当键盘按下时会有相应的键扫描码输出显示到PC终端 -PS2 keyboard to control the content of the experimental procedure is used EDK build a simple system and add custom peripherals (a ps2 keyboard controller) when the keyboard is pressed the corresponding button will scan code to the PC terminal output shows

介绍了ＶＨＤＬ编程语言的基本语法，和一些编程实例-VHDL programming language introduced the basic grammar, and some programming examples

程序主要是用硬件描述语言（VHDL）实现： 4*4键盘扫描，简洁明了，通俗易懂，比较适合VHDL初学者-procedure was used in hardware description language (VHDL) to achieve : 4* 4 keyboard scan, concise, easily understood and more suitable for beginners VHDL

misp顶层文件，verilog实现misp架构，并且支持modelsim仿真(Verilog implements MISP architecture and supports Modelsim simulation)

these are verilog files but i am uploading in text(notepad) format

FPGA来实现数据采集，AD采用TI公司的THS1206，高速并行AD，内含16字FIFO，降低硬件复杂度。(FPGA to realize data acquisition, AD using TI company s THS1206, high-speed parallel AD, containing the 16-character FIFO, to reduce hardware complexity.)

ASIC设计中常用的运算模块，如加减，常系数乘法，截断，饱和等。(some modules used in ASIC design.)

说明：  100个vhdl例子，对初学者很有用，可以用MAX+PLUS 2来编译仿真的(100 vhdl example, useful for beginners, you can use the MAX+ PLUS 2 to compile the simulation)

usb 硬件实现 请大家多多指教-usb hardware realize the exhibitions please everyone