verilog code for counter four

第十一章到第十三章的代码 本书通过100多个模块实例，详细地讲解了Verilog HDL程序设计语言，全书共分13章，内容涉及VerilogHDL语言基本概念、建模、同步设计、异步设计、功能验证等，实例包括各种加法器/计数器、乘法器/除法器、编码器/译码器、状态机、SPIMaster Controller、I2C Master controller、CAN ProtocolController、Memory模块、JPEG图像压缩模块、加密模块、ATA控制器、8位RISC-CPU等及各个实例模块相应的Testbench，所举实例具有很强的实用性和代表性，每个实例均给出了介绍、功能分析、程序代码和结果演示。(Chapter XI to the 13th chapter of the code in this book through more than 100 module instance, explain in detail the Verilog HDL programming language, the book is divided into 13 chapters, covering basic concepts VerilogHDL languages, modeling, synchronous design, asynchronous design, functional verification, etc. Examples include a variety of adder/counter, multiplier/divider, encoders/decoders, state machines, SPIMaster Controller, I2C Master controller, CAN ProtocolController, Memory modules, JPEG image compression module, encryption module, ATA controller, 8-bit RISC-CPU, etc. and the various instances of the corresponding module Testbench, The examples are highly practical and representation, each instance of it all gives the introduction, functional analysis, program code and results presentation.)

FPGA Implementation ofLow Power 64-Point Radix-4 FFT Processor for OFDM System

用VHDL语言将二进制数据转换成十进制数据，并将十进制的每一个位分离出来单独存放。使用状态机实现，程序简单，仿真效果很理想，占用可编程器件的资源较少。-VHDL language with the binary data into decimal data and decimal places separated from each store individually. Realize the use of state machine, the program is simple, simulation results are satisfactory, occupation of programmable devices have fewer resources.

合并单元内GPS同步时钟的检测 合并单元内GPS同步时钟的检测-Combined unit GPS clock synchronization detection unit merger GPS synchronized clock detection

基于NiosII系统的可以在DE2-115板子上运行的吞食蛇游戏！（可以使用RS2键盘进行控制）(DE2-115 board NiosII system swallowed snake game! , (RS2 keyboard control))

实现拟想要的音乐，基于at89s51单片机的电子琴设计！(To achieve the desired music to be based at89s51 keyboard microcontroller design!)

EDA的交通信号灯的控制系统的程序,设计一个交通信号灯控制器，由一条主干道和一条支干道汇合成十字路口，在每个入口处设置红、绿、黄三色信号灯，红灯亮禁止通行，绿灯亮允许通行，黄灯亮则给行驶中的车辆有时间停在禁行线外。(EDA traffic lights control system procedures)

基于FPGA的运动控制系统设计，包含位置、速度控制等(motion control)

This code for countor . it is design in verilog HDL.

matlab仿真MATLAB电机仿真精华50例--源代码异步电机\asymotor_stator.mdl