六层的电梯控制系统 用VHDL描述同时还附有系统仿真图形

8位加减器，八位减法器与加法器，用过一个控制端可以自由变换，采用移位加法方式，用途广泛，利用减法位补码加法的理论实现。(8 addition and subtraction, eight subtractor and adder, used a control terminal can freely change the using Shift addition, a wide range of uses, the use of subtraction complement addition theory to achieve.)

此代码是SPI接口的Master的Verilog源代码，经上板测试是没有问题的，请大家放心使用 (This code SPI Interface Master of Verilog source code, there is no problem on board test, please rest assured to use)

本书共由三篇组成。其中第一篇由第1~3章组成，介绍PCI总线的基础知识。第二篇 由第4~13章组成，介绍PCIExpress总线的相关概念。第二篇的内容以第一篇为基础。(This book comprises a total of three components. The first chapter from the first 1-3 chapters, introduces the basics of the PCI bus. Second by the first 4 to 13 chapters, introduces concepts related PCIExpress bus. The contents of the first to second basis.)

采用VHDL编写的步进电机控制程序-stepping motor controlling program written by VHDL

应用背景VHDL  ；CPU设计...................................................................................................................................................................................................................................................................................................................................................................关键技术VHDL  ；CPU设计...................................................................................................................................

iic的代码，是工程文件来的，是XILINX的，来自开源的-IIC

六层的电梯控制系统 用VHDL描述同时还附有系统仿真图形

应用背景Booth乘法器实现快速乘法algorithm.mainly用于通信和DSP组成的3块摊位重新编码，华勒斯树和超前进位addder关键技术超大规模集成电路设计，通信和DSP的应用，芯片设计，VHDL，Verilog程序，加法器和乘法器

VHDL编写的4个led灯循环明暗变化，通过改变波形占空比实现，课堂作业自编程序-VHDL prepared by the four led lights cycle shading changes, by changing the waveform duty cycle to achieve, self-compiled class operating procedures

说明：  BUS documentation and map reffereces