量化核心的FPGA实现

采用STC89C52单片机的定时器以实现两路PWM波输出，占空比、频率可调(Microcontroller timer used to achieve STC89C52 two PWM wave output, duty cycle, frequency adjustable)

用VHDL语言实现了DES加密算法，其中包含了测试程序，能够进行仿真。(Using VHDL language implementation of the DES encryption algorithm, which contains the test procedures can be simulated.)

用VHDL实现十六位移位乘法器 才有移位相加法来实现-Use VHDL to achieve 16-bit shift multiplier shift only the sum of law to achieve

dp_xiliux 的 CPLD Verilog设计实验,串口演示.代码测试通过. -dp_xiliux the CPLD Verilog design experiments, serial presentation. code test.

在 FPGA，SPI、 I2C 等 ASI，串行接口的实现来武力作为需要实现外围设备之间的接口。这个项目给 VHDL 源代码实施 SPI 接口和他们有关的文件。

COUNTER 用于xilinx硬件，里面已建工程，修改ucf即可。设计由3部分组成，计数器，100M分配时钟，顶层模块，其中顶层模块包括计数器和分频器。

PLL是数字锁相环设计源程序, 其中, Fi是输入频率(接收数据), 数字锁相技术在通信领域应用非常广泛，本例用VHDL描述了一个锁相环作为参考，源码已经调试过。编译器synplicty.Fo(Q5)是本地输出频率. 目的是从输入数据中提取时钟信号(Q5), 其频率与数据速率一致, 时钟上升沿锁定在数据的上升和下降沿上；顶层文件是PLL.GDF-digital phase-locked loop PLL design source, in which Fi is the input frequency (receive data), the digital technology in the field of communications is widely used, the cases described in VHDL as a PLL reference source has been tuned. Compiler synplicty.Fo (Q5) is the local output frequency. Objective is to extract data input clock signal (Q5), its frequency and data rate line, the clock rising edge of the data locked up and the descending; Top-level document is PLL.GDF

标准的异步串口通讯设计程序――基于VHDL编程-communication design programme of standard asynchronous serial port base on VHDL programme

用VHDL语言编写的AT24C02程序，并用数码管显示，本程序已经经过本人测试过，很好用-The AT24C02 is available VHDL language program, and use digital tube display, this procedure has been tested himself, very good to use--

USB口的设计，包括驱动程序的设计，以及软件的安装演示，软件的介绍，以及工作模式-USB port design, including the driver design, and installation of software, presentation, software presentation, and working models