用vhdl实现脉冲宽度可控的一简单程序 仿真环境MAXPLUS

一个采用IIC协议，从ROM里面读数据的接口程序，采用verilog语言，状态机实现。(One with IIC protocol, which read data from ROM interface program, using verilog language, the state machine implementation.)

4X4 KEYPAD 的输入位数计数器，可以自己定义输入的位数-4x4 KEYPAD median counter input, input their own definition of the median

数字化，宽带化，是当今无线通信的重点主流方向，FPGA以其功能强大，开发周期短，投资少，可重复修改，开发工具智能及软件可升级等特点成为无线通信首选。(Digital, broadband, is the focus of today s mainstream wireless communications, FPGA with its powerful, short development cycle, low investment, repeatable modify, intelligence and software development tools and other characteristics can be upgraded to become the first choice of wireless communication.)

这是一个基于可编程逻辑器件的程序，用来实现自动转换量程频率计控制器，该程序在可以再仿真器上仿真实现-This is a programmable logic device based on the procedures used to automatically convert the frequency range of the controller, the program can be in the simulation simulator

This tutorial introduce VHDL code for clock pulse and 4-bit counter. With four bits, the counter count from 0 to 15. The timing of the counter is controlled by a clock signal. There will be a clear signal which can reset the counter value.

VHDL实现快速傅立叶变换 -VHDL implementation VHDL implementation of Fast Fourier Transform Fast Fourier Transform

基于FPGA的电子密码锁设计与实现，语言是VHDL语言，有注释(FPGA-based design and implementation of electronic locks, language is VHDL language, annotated)

FPGA的测频程序，用了D触发器，能测1hz到几百hz(FPGA frequency measurement procedures, using a D flip-flop, can be measured to a few hundred hz 1hz)

Altera DE2 上使用 vhdl 语言设计 RS232 控制器。这是一个串口模块可用于嵌入系统。

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