用FPGA实现数字锁相环，开发环境为ISE

NIOS II IDE 编程， uart_txd测试程序，仅供参考。-NIOS II IDE programming, uart_txd testing procedures, for information purposes only.

Simple SPI interface realization on Verilog HDL with parameterized FIFO and APB interface

Verilog语言的流水灯设计程序，对初学者很有用。(Water lights Verilog language design program useful for beginners.)

简单uart，verilog语言编写，已经经过测试，有需要的可以看看(Simple uart, Verilog language, has been tested, you can see if you need it)

register file in vhdl and alu

设计一个简单的自动售饮料机的逻辑电路。它的投币口每次只能投入一枚五角或一元的硬币。投入一元五角钱硬币后机器自动给出一杯饮料。投入两元（两枚一元）硬币后，在给出饮料的同时找出一枚五角的硬币。

基于FPGA的16QAM，用verilog编写，其中DDS为自己编写，含设计文件和testbench。已通过moldesim软件仿真。 (FPGA-based 16QAM, with verilog writing, including DDS for their preparation, including design files and testbench. Simulation software has been through moldesim.)

展位的乘法算法 is a 乘法算法两者相乘得两个签名二进制 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

这时一个数字钟的VHDL程序，有计时、校时、整点报时功能，很适合做EDA设计之用-When a digital clock in VHDL procedures, time, school hours, the whole point timekeeping function, it is suitable for use in EDA Design

数字时钟管理器，xilinx公司开发板集成时钟，实现分频、倍频等功能。(Digital clock managers, xilinx development board integrated clock divider, multiplier, and other functions.)