以太网MAC core.this是etherenet UDP的应用

一个用VerilogHDL语言编写的多路解复用器-a Verilog HDL language used in the preparation of multi-channel demultiplexer

周立功Verilog HDL黄金参考指南，学习VerriLog的东西。-Golden Week Ligong Verilog HDL reference guide, learning VerriLog things.

数字时钟，可以实现(1) 显示日期功能（年、月、日、时、分、秒以及） (2) 可通过按键切换年、月、日及时、分、秒的显示状态 (3) 可随时调校年、月、日或时、分、秒 (4) 可每次增减一进行时间调节 (5) 可动态完整显示年份，实现真正的万年历显示 (6) 可显示温度 (Digital clock, can be achieved (1) the date function (year, month, day, hour, minute, seconds as well) (2) through the key switch the year, month, day in a timely manner, minute, second display state (3) at any time adjust the year, month, day or time, minutes, seconds (4) can be added or deleted, a time adjustment (5) can be dynamically complete display Year, the real calendar display (6) to display temperature)

Altera官网上关于SOPC中自定义组件（PWM）的实例，官网上现在没了。。可很多书上都在用-Altera in the official line on the SOPC custom component (PWM) of the examples are not the official line. . Can be a lot of books are in use. . .

常用的锁相环技术，此程序是我在设计高频电路中运用的，具体见程序，经调试无问题(Commonly used phase-locked loop technology, this program is in the design I used in high-frequency circuits, see the specific procedures, no problem by debugging)

this program performs multiplexing and demultiplexing

几个fpga竞赛的设计例-Several Example FPGA design contest

Efficient_Digital_Implementation_of_Extreme_Learning_Machines_for_Classification

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.)

说明：  假设每个从设备中有可访问APB寄存器16个，位宽均为32比特，16个寄存器的访问地址计算方式为 基址 +　寄存器编号左移２位（byte 偏移）(Assuming that there are 16 accessible APB registers in each slave device, the bit width is 32 bits, and the access address of 16 registers is calculated by base address + register number left shift 2 bits (byte offset).)