source code used for reference only

上位机做客户端，来读取下位机设备的数据。其中通讯协议是基于modbus的TCP/IP协议，用socket套接字来实现数据的传输。

手机软件系统的设计(MSC图及SDL图) 本系统实现的是一个简易的手机软件系统，具有基本的通话功能。-The design of mobile software systems (MSC and SDL map map) This system is a simple cell phone software systems, have a basic call function.

对于做串口程序的人来说，简直就是雪中送炭-Serial port to do the procedure for anyone who is simply a temporary relief

This module can be used to interface to the MMC card in MMC or * SPI modes. It supports a multiple card environment. The reset and * identification processes assume multiple cards on the bus. * In MMC mode, the card number is used as the RCA operand in the * commands.

虽然Windows下可视化开发工具如VC、Delphi、C＋＋ Builder等都有专用的定时器控件Timer，而且使用很方便，可以实现一定的定时功能，但最小计时精度仅为55ms，且定时器消息在多任务操作系统中的优先级很低，不能得到及时响应，往往不能满足实时控制环境下的应用。不过Microsoft公司在Win32 API函数库中已经为用户提供了一组用于高精度计时的底层函数，如果用户使用得当，计时精度可到1ms。这个计时精度、对于一般的实时系统控制完全可以满足要求。现将由C＋＋ Builder 4.0提供的重新封装后的一组与时间相关的主要接口函数（函数名、参数、功能与Win32 API基本相同）说明如下： -visual development tools such as Visual C++, Delphi, C++ Builder and others all have dedicated Timer timer control, but it is convenient. can achieve a timing function, but only the minimum time of 55 ms accuracy. Timer news and multi-task operating system in the low priority that is not to respond in a timely manner, often fail to meet the real-time control environment applications. However, Microsoft Corporation in the Win32 API function has been to provide the user with a group for high-precision the bottom was a time function, if the user is properly utilized, time accuracy can be a ms. Accuracy this time, and for most of the real-time control system can meet the requirements.

基于linux平台用QT编写的串口通信代码，去年我使用Qt编写串口通信程序时，将自己的学习过程写成了教程（Qt编写串口通信程序全程图文讲解），但是由于时间等原因，我只实现了Windows下的串口通信，并没有去做Linux下的。自从教程发布到网上后，就不断有人提出相关的问题，而其中问的最多的就是，怎样在Linux下实现串口通信。因为有计划安排，而且没有开发板，所以一直没能去研究，也就没能给出很好的解决办法。前些天，网友hqwfreefly 用Qt写了一个叫linucom的Linux下串口调试程序，实现了Linux的串口通信。而且，正好现在我有几天假期，所以就和hqwfreefly合作，将linucom更新为Lincom，并且推出了Windows下的Wincom，然后完成了这篇Qt编写串口通信程序的专题教程，也算完成了我的一个心愿。

该文件夹为空时块码－卷积码级联系统的仿真程序，天线配置为2发2收。内附主要程序的用途说明.-folder to the space-time block codes-Convolutional Codes cascade system simulation program, antenna configuration for the two 2 admission. Containing the main proceedings Description.

这个是一个很重要的MODBUS工具，是外国人编写的，我们可以很好的用的-This is a very important MODBUS tool, written by foreigners, we can use a good

三篇关于Viterbi FPGA编译码器的优化设计文档： 1、Viterbi译码器的FPGA设计实现与优化.pdf 2、Viterbi译码器的低功耗设计.pdf 3、基于FPGA的高速并行Viterbi译码器的设计与实现.pdf-3 on the Viterbi FPGA optimization codecs design documents: 1, Viterbi decoder FPGA Design Implementation and Optimization. Pdf2, Viterbi decoder, low-power design. Pdf3, high-speed FPGA-based parallel Viterbi decoder Design and Implementation. pdf

线程的概念、属性；线性创建的2种方式及其联系、区别和使用场合；线程的生命周期和5种状态；线程状态控制的一般方法；线程同步的概念、原理；线程同步的场合、线程同步的条件、同步对象的选取；线程间通讯的概念，与线程同步的区别；notify和wait的使用方法。两类socket通信的概念、特点、应用场合；两类socket通信的客户和服务端的基本步骤；组播通信的概念、组播客户端服务端的基本结构。-threads concept attribute; The creation of two linear models and their connections, and the use of different occasions; Threads of the life cycle and five state; Thread the general state control; Thread synchronization concept, principle; Thread Synchronization occasions, thread synchronization, the synchronization like the selection; Thread the concept of communication, and synchronization of different threads; notify the wait and use. Two types of socket communication concept, features, applications; Two types of socket communication and customer service side of the basic steps; The concept of multicast communication, multicast client services side of the basic structure.