通过VHDL语言的例子，乒乓球运动的FPGA原型样机（2章）是

本程序实现数字钟系统，有整点报时功能，可显示切换年月日，定时功能(Digital clock system of this program, with the whole point timekeeping function, can display the date, the timing function)

VHDL硬件描述语言与数字逻辑电路设计,学习VHDL的好资料-VHDL hardware description language and digital logic circuit design, VHDL learning good information

可测试74LS00，74LS01，74LS02，74LS03等等芯片的功能是否正常。

ad9850函数发生器 MSP430单片机驱动程序 扫频 DDS(AD9850 DDS)

7对于进入密码锁的按键，假设复位后七个灯显示" 0"，而使用sw5、sw6 2，则只要按下并松开sw5后七个灯就显示" 5"，而只要按下并松开sw6，七个灯就正确显示值" 6

-- Booth Multiplier -- This file contains all the entity-architectures for a complete -- k-bit x k-bit Booth multiplier. -- the design makes use of the new shift operators available in the VHDL-93 std -- this design passes the Synplify synthesis check -- download from: www.fpga.com.cn & www.pld.com.cn--- Booth Multiplier-- This file contains a ll the entity-architectures for a complete-- k- bit x k-bit Booth multiplier.-- the design mak es use of the new shift operators available in th e VHDL-93 std-- this design passes the Synplify synthesis check-- download from : www.fpga.com.cn

说明：  内有一PCI 主 和PCI从，PCI TARGET 都是公开代码的，是工程文件，有仿真工程，使用说明。觉得好的就推荐一下。 本PCI_HOST目前支持： 1、 对目标PCI_T进行配置； 2、 对目标进行单周期读写； 3、 可以工作在33MHZ和66MHZ 4、 支持目标跟不上时插入最长10时钟的等待。 ALTERA的PCI竟然收费的！！！软件里面调试仿真了半天，终于调通了，到了下载就突然弹出窗口说包含了有限制的IP CORE，是限制使用的(There is a PCI from PCI proprietors, PCI TARGET is open source, is the project document, there is simulation project, for use. Feel good about the recommendation. The PCI_HOST currently supports: 1, on the target configuration PCI_T 2, on the target for single-cycle read and write 3, can work in the 33Mhz and 66MHZ 4, to support the goals behind to insert a maximum of 10 clock hours of waiting. ALTERA the PCI even charges! ! ! Inside simulation software debugging for a long time, and finally had transferred to the download on the sudden pop-up window that contains a limited IP CORE, is to restrict the use of)

CODE_VHDL_COUNTING 0 到 9，使用按钮 (Đếm 慈 0 đến 9 hiển 施耐 1 带领 7 đoạn sử dụng nút nhấn để điều khiển) Với bài này tôi sử dụng một nút nhất để một nút nhấn đế bắt đầu đếm dữ liệu 将重置。

ask调制，基于VHDL仿真平台，解调同样给出，此程序经过验证-ask modulation, based on VHDL simulation platform, demodulator is the same, this procedure proven

embedded development kit 9.1 user guide