伺服电机控制

hex_counter old project, please let me know if need any help

应用背景此应用程序是用Xilinx ISE 12.4，使用VHDL语言进行。本程序的目的是提供一个显示的接口方法的七段显示。用户将可以看到从0到9999的一个计数器，它运行在利用FPGA内部的时钟实时。享受它。关键技术现场可编程门阵列（FPGA）是半导体器件是基于一个可配置逻辑块（CLB）连接矩阵通过可编程互连。FPGA可编程所需的应用或功能要求后制造。这功能区分FPGA从特定应用集成电路（ASIC），这是制造的特定设计定制任务。虽然一次性可编程（OTP）FPGA，这主要类型是基于SRAM的可重新编程的设计演变。

基於空間向量調變的開關法，在於載波做比較切出方波再送至開關讓馬達啟動(Based on the switching method of space vector modulation, the square wave is cut out for carrier comparison and sent to the switch to start the moto)

ip core of the transceiver gtx

说明：  激光测速研究，主要介绍多普勒激光测速知识(Laser velocimetry study introduces laser-Doppler velocimetry knowledge)

说明：  本代码是控制DS1302的VHDL代码，浅显易懂，方便修改，注意看data sheet，保证时钟和各个延迟满足要求即可(This code is to control the DS1302' s VHDL code, easy to understand, easy changes, note the data sheet, ensure the clock and can meet the requirements of the various delays)

基于FPGA的DM9000A芯片的网络数据采集系统，基于NIOS架构，c语言编程，资料齐全，包含不止5个源程序，绝对受用！(FPGA-based the DM9000A chip network data acquisition system based on NIOS architecture, c programming language, the information is complete, contains more than 5 source code is absolutely good enough!)

这是一个最最常用的用vhdl写的状态机，几乎哪儿都用得到(a very good state machine)

FPGA／CPLD技术是近年来计算机与电子技术领域的又一场革命。本书以Xilinx与Altera公司的FPGA／CPLD为主，详细介绍了FPGA／CPLD从芯片到MAX+plusⅡ、Quartus与ISE开发环境和Verilog／VHDL语言，并以交通灯逻辑控制、电子钟与点阵LED显示、LCD液晶显示及计算机ISA接口和PCI接口的设计等为例，由浅入深地详述了如何应用FPGA／CPLD进行电子设计。书中的大多数电路图和源程序已经过实例验证，读者可以直接应用于自己的设计。本书的特点是强调实用性和先进性，力求通俗易懂。 本书适用于计算机、电子、控制及信息等相关专业的在校大学生，对广大工程技术人员也具有实用价值。(FPGA/CPLD technology in recent years the field of computer technology and electronic another revolution. Book Xilinx and Altera' s FPGA/CPLD based, detailing the FPGA/CPLD from the chip to MAX+plus Ⅱ, Quartus and ISE development environment and Verilog/VHDL language and logic control traffic lights, electronic bell with dot matrix LED display , LCD liquid crystal display and computer ISA interface and PCI interface design, for example, progressive approach to detail how the application of FPGA/CPLD for electronic designs. Circuit and the source of most of the book have been instances of verification, the reader can be directly applied to their own design. Characteristic of this book is to emphasize the practical and advanced, best straightaway. This book applies to computers, electronics, control and information and other related professional college students, the majority of engineering and technical personnel also has practical value.)

VHDL由简单存储器，计数器等搭建最终实现8位的cpu设计(VHDL realization 8 of cpu design)