基于ARM的嵌入式bootloader的典型架构分析

本文介绍了嵌入式系统bootloader的功能,详细分析了基于ARM的嵌入式Bootloader的典型构架的设计思想。Bootloader最基本的功能是对硬件系统的初始化和内核启动参数设置并启动内核。     

移动医疗系统的Bootloader设计与实现

启动引导程序(Bootloader)是嵌入式系统加电后运行的第一段软件代码。但是由于嵌入式系统的专用性和多样性,Bootloader的移植工作繁琐复杂。为了减少Bootloader移植工作的盲目性,加速产品开发进程,进行Bootloader分析总结,并针对设计的基于嵌入式技术的移动医疗系统设计一种应用于其上的Bootloader。除基本内核镜像的引导与加载外,提供多接口下载模式,且易于不同CPU的移植与扩展,具有一定的实际应用价值和参考意义。     

U-Boot在S3C44B0上的移植方法

Bootloader(引导加载程序)是嵌入式系统CPU加电后第一个开始运行的代码.在内核映像执行之前完成相关的底层硬件的初始化,建立内存空间的映射图等重要工作,然后为内核提供引导参数,启动内核.DasU Boot(UniversalBootloader),是一个功能十分强大的Bootloader,本文深入研究了U Boot的工作机理,详细分析了U Boot在基于三星公司S3C44B0处理器的嵌入式系统板上的移植方法、过程与移植要点.     

基于ARM的嵌入式Bootloader的设计与实现

文章实现了基于Lumit4510开发板的Bootloader,包括嵌入式系统的硬件初始化、串口驱动、FLASH驱动、Linux内核的加载与启动。     

基于三星S3C44BOx目标板在μClinux系统上的Bootloader

介绍了嵌入式μClinux 2．4．24操作系统引导加载程序Bootloader的编写方法及其要点。根据ARM芯片的结构分析映像文件的组成及其地址映射方法，并结合杭州立字泰公司的S3C44BOX开发板，具体实践和验证了利用Bootloader引导μClinux内核的过程。     

Linux在嵌入式系统上的移植

本文介绍Linux在嵌入式系统上的移植技巧,详细阐述了在以三星公司的S3C2410处理器为核心的硬件平台上,移植Linux系统的过程,包括环境搭建,修改和移植Bootloader,裁剪和移植Linux内核、文件系统等.     

基于ARM9的嵌入式系统的开发

基于ARM9嵌入式微处理器S3C2410核心板的数据采集系统选用嵌入式Linux作为系统的开发环境和运行平台,本文介绍了该系统的设计和开发过程,包括系统组成、开发环境的建立、Linux内核的配置与编译、Bootloader系统引导和文件系统安装的操作流程.     

基于ARM的嵌入式Linux中引导加载程序设计与移植

Bootloader(引导加载程序)是嵌入式系统加电后运行的第一段代码,也是嵌入式系统软件开发的第一个环节,它为嵌入式操作系统提供目标板硬件配置信息,将操作系统和硬件平台紧密地衔接在一起,它相当于PC机上的BIOS,负责将操作系统内核固化到Flash中,在系统启动时负责初始化工作和把系统控制权交给操作系统。本文介绍了一种基于ARM(S3C2410)平台的Bootloader程序的设计与移植实现。     

基于IPv6的SOHO宽带路由器的软件设计

基于IPv6的SOHO宽带路由器的软件设计首先要建立交叉编译环境，在SOHO宽带路由器开发平台上对Bootloader，Linux内核和相关的文件系统进行移植，最后设计基于IPv6的SOHO宽带路由器的软件结构，开发出软件。     

基于8302440的Bootloader的设计与实现

Bootloader（引导加载程序）是嵌入式系统开发的一个重要环节，它把操作系统和硬件平台衔接起来，对嵌入式系统的后继软件开发十分重要。U—boot是一个功能十分强大的Bootloader，本文深入研究了U—boot的运行原理．在基于以三星公司S3C2440微处理器为核心的开发板为背景，分析、探讨并且实现了基于U—boot的系统引导加载程序的构建。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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