本章将带您走进Linux设备驱动的精彩世界。1.1 节讲解了设备驱动的概念和作用。1.2 节和1.3 节分别讲述无操作系统和有操作系统情况下设备驱动的设计方法，通过分析讲解设备驱动与硬件和操作系统的关系。1.4 节对Linux 操作系统的设备驱动进行了概要性的介绍，讲解设备驱动与系统软硬件的关系，分析了Linux设备驱动的重点难点和学习方法。本章的最后给出了一个设备驱动的“Hello World”实例，即最简单的LED 驱动在无操作系统情况下和Linux操作系统下的实现。
上传时间： 2022-06-17
上传用户：fliang
本文讲述了美国德州仪器TI的dsp的开发环境CCS的使用教程第一章CCS概述，本章概述CCS（Code Composer Studio)软件开发过程、CCS组件及CCS使用的文件和变量。第二章 开发一个简单的应用程序 本章使用hello World实例介绍在CCS中创建、调试和测试应用程序的基本步骤；介绍CCS的主要特点，为在CCS中深入开发DSP软件奠定基础。本文主要描述了建立一个工程的方法、代码编写调试方式、环境等建立的方式的，适合初学者入门学习。
上传时间： 2022-07-02
上传用户：jason_vip1
PrefaceDuring the past years, there has been a quickly rising interest in radio access technologies for providingmobile as well as nomadic and fixed services for voice, video, and data. The difference indesign, implementation, and use between telecom and datacom technologies is also becoming moreblurred. One example is cellular technologies from the telecom World being used for broadband dataand wireless LAN from the datacom World being used for voice-over IP.Today, the most widespread radio access technology for mobile communication is digital cellular,with the number of users passing 5 billion by 2010, which is more than half of the World’s population.It has emerged from early deployments of an expensive voice service for a few car-borne users,to today’s widespread use of mobile-communication devices that provide a range of mobile servicesand often include camera, MP3 player, and PDA functions. With this widespread use and increasinginterest in mobile communication, a continuing evolution ahead is foreseen.This book describes LTE, developed in 3GPP (Third Generation Partnership Project) and providingtrue 4G broadband mobile access, starting from the first version in release 8 and through the continuingevolution to release 10, the latest version of LTE. Release 10, also known as LTE-Advanced,is of particular interest as it is the major technology approved by the ITU as fulfilling the IMTAdvancedrequirements. The description in this book is based on LTE release 10 and thus provides acomplete description of the LTE-Advanced radio access from the bottom up.Chapter 1 gives the background to LTE and its evolution, looking also at the different standardsbodies and organizations involved in the process of defining 4G. It also gives a discussion of the reasonsand driving forces behind the evolution.Chapters 2–6 provide a deeper insight into some of the technologies that are part of LTE and itsevolution. Because of its generic nature, these chapters can be used as a background not only for LTEas described in this book, but also for readers who want to understand the technology behind othersystems, such as WCDMA/HSPA, WiMAX, and CDMA2000.Chapters 7–17 constitute the main part of the book. As a start, an introductory technical overviewof LTE is given, where the most important technology components are introduced based onthe generic technologies described in previous chapters. The following chapters provide a detaileddescription of the protocol structure, the downlink and uplink transmission schemes, and the associatedmechanisms for scheduling, retransmission and interference handling. Broadcast operation andrelaying are also described. This is followed by a discussion of the spectrum flexibility and the associated
上传时间： 2022-07-08
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第一个程序是一个简单的Hello World例子。它只包含你建立和运行Qt应用程序所需要的最少的代码。上面的图片是这个程序的快照。一行一行地解说#incl ude <qapplication.h>这一行包含了QApplication类的定义。在每一个使用Qt的应用程序中都必须使用一个QApplication对象。QApplication管理了各种各样的应用程序的广泛资源，比如默认的字体和光标。#incl ude <qpushbutt on.h>这一行包含了QPushButon类的定义。参考文档的文件的最上部分提到了使用哪个类就必须包含哪个头文件的说明。
标签： qt
上传时间： 2022-07-25
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仿豆瓣电影-demo.zip 仿知乎日报.zip 仿手机淘宝.zip 仿今日头条app.zip 礼物说.zip 知乎日报.zip 百度小说搜索.zip 狼人杀.zip 爆米花popcorn.zip 果库.zip 技术社区-demo.zip 微票源码-demo.zip 微信小程序的掘金信息流.zip 微信小程序-移动端商城.zip 微信小程序-大好商城，wechat-weapp.zip 微信小程序-吃货APP(上拉加载更多，下拉刷新).zip 微信小程序-公众号热门文章信息流.zip 小米商城.zip 小程序贪吃蛇.zip 小程序地图Demo.zip 小程序 hello World 尝鲜.zip 外卖demo.zip 图片演示demo.zip 公众号热门文章信息流.zip …………
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上传时间： 2013-06-14
上传用户：eeworm
