本章將帶您走進Linux設備驅動的精彩世界。1.1 節講解了設備驅動的概念和作用。1.2 節和1.3 節分別講述無操作系統和有操作系統情況下設備驅動的設計方法，通過分析講解設備驅動與硬件和操作系統的關系。1.4 節對Linux 操作系統的設備驅動進行了概要性的介紹，講解設備驅動與系統軟硬件的關系，分析了Linux設備驅動的重點難點和學習方法。本章的最后給出了一個設備驅動的“Hello WORLD”實例，即最簡單的LED 驅動在無操作系統情況下和Linux操作系統下的實現。
上傳時間： 2022-06-17
上傳用戶：fliang
本文講述了美國德州儀器TI的dsp的開發環境CCS的使用教程第一章CCS概述，本章概述CCS（Code Composer Studio)軟件開發過程、CCS組件及CCS使用的文件和變量。第二章 開發一個簡單的應用程序 本章使用hello WORLD實例介紹在CCS中創建、調試和測試應用程序的基本步驟；介紹CCS的主要特點，為在CCS中深入開發DSP軟件奠定基礎。本文主要描述了建立一個工程的方法、代碼編寫調試方式、環境等建立的方式的，適合初學者入門學習。
上傳時間： 2022-07-02
上傳用戶：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
上傳時間： 2022-07-08
上傳用戶：
第一個程序是一個簡單的Hello WORLD例子。它只包含你建立和運行Qt應用程序所需要的最少的代碼。上面的圖片是這個程序的快照。一行一行地解說#incl ude <qapplication.h>這一行包含了QApplication類的定義。在每一個使用Qt的應用程序中都必須使用一個QApplication對象。QApplication管理了各種各樣的應用程序的廣泛資源，比如默認的字體和光標。#incl ude <qpushbutt on.h>這一行包含了QPushButon類的定義。參考文檔的文件的最上部分提到了使用哪個類就必須包含哪個頭文件的說明。
標簽： qt
上傳時間： 2022-07-25
上傳用戶：
仿豆瓣電影-demo.zip 仿知乎日報.zip 仿手機淘寶.zip 仿今日頭條app.zip 禮物說.zip 知乎日報.zip 百度小說搜索.zip 狼人殺.zip 爆米花popcorn.zip 果庫.zip 技術社區-demo.zip 微票源碼-demo.zip 微信小程序的掘金信息流.zip 微信小程序-移動端商城.zip 微信小程序-大好商城，wechat-weapp.zip 微信小程序-吃貨APP(上拉加載更多，下拉刷新).zip 微信小程序-公眾號熱門文章信息流.zip 小米商城.zip 小程序貪吃蛇.zip 小程序地圖Demo.zip 小程序 hello WORLD 嘗鮮.zip 外賣demo.zip 圖片演示demo.zip 公眾號熱門文章信息流.zip …………
標簽： 電容
上傳時間： 2013-06-14
上傳用戶：eeworm
