该源码为VHDL语言编写的分频器，在W

verilog code for 8 bit alu

1、用状态机设计A/D转换器ADC0809的采样控制电路，并在数码管上显示转换结果； 2、设置有复位和启动/保持开关，要求 ⑴ 复位开关用来使A/D转换器复位，并做好A/D转换准备； ⑵ 启动/保持开关用来控制A/D转换器开始连续转换或停止转换保持结果，即按一下启动/保持开关，启动A/D转换器开始转换，再按一下启/停开关，停止转换并保持结果。 3、采用Verilog HDL语言设计符合上述功能要求的控制电路。(1, with the state machine design A/D converter ADC0809 sampling control circuit and display the results on the digital conversion 2 is provided with a reset and start/hold switch, reset switch is used to make the request ⑴ A/D converter reset and do A/D conversion ready ⑵ start/hold switch is used to control the A/D converter starts converting or stop the conversion to maintain a continuous result that by clicking Start/hold switch, start the A/D converter to start the conversion, and then Click the start/stop switch stops the conversion and keep the results. 3, using Verilog HDL language designed to meet the functional requirements of the above-mentioned control circuit.)

本文件给出了基于VHDL语言的VGA图像显示程序及其工程问件。(This document is presented based on VHDL language VGA image display program and the project asked the pieces.)

VHDLVERILOG语言实现的CARDBUS的IP源码,已经实现现场应用-CARDBUS IP CORE

软件开发环境：ISE 7.1i 仿真环境：ISE Simulator 1. 这个实例实现通过ISE Simulator工具实现一个具有两个方向共八个灯的交通灯控制器； 2. 工程在project文件夹中，双击traffic.ise文件打开工程； 3. 源文件在rtl文件夹中，traffic.v为设计文件，traffic_tb.tbw是仿真波形文件； 4. 打开工程后，在工程浏览器中选择traffic_tb.tbw，在Process View中双击“Simulation Behavioral Model”选项，进行行为仿真，即可得到仿真结果。-Software development environment: ISE 7.1i simulation environment: ISE Simulator1. Realize this instance through the ISE Simulator tool to achieve a total of eight lights in both directions of traffic lights controller 2. Works project folder, double-click traffic.ise Open the project document 3. rtl source file in the folder, traffic.v for design documents, traffic_tb.tbw is the simulation waveform files 4. to open a project, the project browser, select traffic_tb.tbw, in the Process View in the double hit

vhdl经典源代码――LCD控制，入门者必须掌握-vhdl classical source code-- LCD control, beginners must master

高速流水的SDRAM控制器，最高速度可达速度在200M左右(high speed SDRAM controller)

用FPGA verilog hdl实现千兆以太网MAC。-Using FPGA verilog hdl realize Gigabit Ethernet MAC.

vga很好的学习材料，测试程序，欢迎下载(vga good learning materials, testing procedures, please download)

用FPGA实现SPWM波输出，其中包含三角波和正弦波(With the FPGA realization of SPWM wave output, including triangle wave and sine wave )