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<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/627dc5fc5981aa38efa00cf7/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">32<span class="_ _0"> </span><span class="ff2 sc1">位<span class="_ _0"> </span></span>RISC CPU <span class="_ _1"></span>ARM<span class="_ _0"> </span><span class="ff2 sc1">芯片的应用和选型</span></div><div class="t m0 x2 h4 y3 ff2 fs1 fc0 sc1 ls0 ws0">摘要<span class="_ _2"></span>：<span class="_ _2"></span><span class="ff3 sc0">ARM<span class="_ _3"> </span><span class="ff2">公司<span class="_ _2"></span>以及<span class="_ _0"> </span></span>ARM<span class="_ _3"> </span><span class="ff2">芯片<span class="_ _2"></span>的现<span class="_ _2"></span>状和<span class="_ _2"></span>发展<span class="_ _2"></span>，从<span class="_ _2"></span>应用<span class="_ _2"></span>的角<span class="_ _2"></span>度介<span class="_ _2"></span>绍了<span class="_ _4"> </span></span>ARM<span class="_ _3"> </span><span class="ff2">芯片<span class="_ _2"></span>的选<span class="_ _2"></span>择方</span></span></div><div class="t m0 x2 h4 y4 ff2 fs1 fc0 sc0 ls0 ws0">法，并介绍<span class="_ _2"></span>了具有多芯核结构<span class="_ _2"></span>的<span class="_ _3"> </span><span class="ff3">ARM<span class="_ _3"> </span></span>芯片。列举了目前的<span class="_ _2"></span>主要<span class="_ _3"> </span><span class="ff3">ARM<span class="_ _3"> </span></span>芯片供应商，其<span class="_ _2"></span>产品</div><div class="t m0 x2 h4 y5 ff2 fs1 fc0 sc0 ls0 ws0">以及应用领域。举例说明了几种嵌入式产品最佳<span class="_ _3"> </span><span class="ff3">ARM<span class="_ _5"> </span></span>芯片选择方案。</div><div class="t m0 x2 h4 y6 ff3 fs1 fc0 sc0 ls0 ws0"> <span class="ff2 sc1">关键词：</span>ARM MMU SOC RISC CPU</div><div class="t m0 x3 h5 y7 ff4 fs2 fc0 sc0 ls0 ws0">ARM<span class="_ _5"> </span><span class="ff2">公司自<span class="_ _6"> </span></span>1990<span class="_ _6"> </span><span class="ff2">年正式成立以来，在<span class="_ _6"> </span></span>32<span class="_ _5"> </span><span class="ff2">位<span class="_ _6"> </span></span>RISC<span class="_ _2"></span><span class="ff2">（</span>Reduced Instruction Set </div><div class="t m0 x2 h5 y8 ff4 fs2 fc0 sc0 ls0 ws0">Computer<span class="ff2">）</span>CPU<span class="_ _6"> </span><span class="ff2">开发领域不断取得突破，其结构已经从<span class="_ _5"> </span></span>V3<span class="_ _6"> </span><span class="ff2">发展到<span class="_ _5"> </span></span>V6<span class="ff2">。由于<span class="_ _6"> </span></span>ARM<span class="_ _5"> </span><span class="ff2">公司自成立以来，直</span></div><div class="t m0 x2 h5 y9 ff2 fs2 fc0 sc0 ls0 ws0">以<span class="_ _6"> </span><span class="ff4">IP</span>（<span class="ff4">Intelligence Property<span class="_ _2"></span></span>）提供者的身份向各大半导体制造商出售知识产权，而自己从不介入芯片</div><div class="t m0 x2 h5 ya ff2 fs2 fc0 sc0 ls0 ws0">的生产销售，加上其设计的芯核具有功耗低、成本低等显著优点，因此获得众多的半导体厂家和整机厂商</div><div class="t m0 x2 h5 yb ff2 fs2 fc0 sc0 ls0 ws0">的大力支持，在<span class="_ _6"> </span><span class="ff4">32<span class="_ _5"> </span></span>位嵌入式应用领域获得了巨大的成功，目前已经占有<span class="_ _6"> </span><span class="ff4">75%</span>以上<span class="_ _6"> </span><span class="ff4">32<span class="_ _5"> </span></span>位<span class="_ _6"> </span><span class="ff4">RISC<span class="_ _5"> </span></span>嵌入式产</div><div class="t m0 x2 h5 yc ff2 fs2 fc0 sc0 ls0 ws0">品市场。在低功耗、低成本的嵌入式应用领域确立了市场领导地位。现在设计、生产<span class="_ _6"> </span><span class="ff4">ARM<span class="_ _5"> </span></span>芯片的国际大</div><div class="t m0 x2 h5 yd ff2 fs2 fc0 sc0 ls0 ws0">公司已经超过<span class="_ _6"> </span><span class="ff4">50<span class="_ _5"> </span></span>多家，国中兴通讯和华为通讯等公司已经购买<span class="_ _6"> </span><span class="ff4">ARM<span class="_ _5"> </span></span>公司芯核用于通讯专用芯片的设计。</div><div class="t m0 x3 h5 ye ff2 fs2 fc0 sc0 ls0 ws0">目前非常流行的<span class="_ _6"> </span><span class="ff4">ARM<span class="_ _5"> </span></span>芯核有</div><div class="t m0 x2 h5 yf ff4 fs2 fc0 sc0 ls0 ws0">ARM7TDMI<span class="ff2">，</span>StrongARM<span class="ff2">，</span>ARM720T<span class="ff2">，</span>ARM9TDMI<span class="ff2">，</span>ARM922T<span class="ff2">，</span>ARM<span class="_ _2"></span>940T<span class="ff2">，</span>RM946T<span class="ff2">，</span>ARM966</div><div class="t m0 x2 h5 y10 ff4 fs2 fc0 sc0 ls0 ws0">T<span class="ff2">，</span>ARM10TDMI<span class="_ _6"> </span><span class="ff2">等。自<span class="_ _5"> </span></span>V5<span class="_ _6"> </span><span class="ff2">以且，</span>ARM<span class="_ _5"> </span><span class="ff2">公司提供<span class="_ _6"> </span></span>Piccolo DSP<span class="_ _5"> </span><span class="ff2">的芯核给芯片设计得，用于设计</span></div><div class="t m0 x2 h5 y11 ff4 fs2 fc0 sc0 ls0 ws0">ARMDSP<span class="_ _6"> </span><span class="ff2">的<span class="_ _5"> </span></span>SOC<span class="ff2">（</span>System On Chip<span class="ff2">）结构芯片。此外，</span>ARM<span class="_ _6"> </span><span class="ff2">芯片还获得了许多实时操作系统（</span>R<span class="_ _2"></span>eal </div><div class="t m0 x2 h5 y12 ff4 fs2 fc0 sc0 ls0 ws0">Time Operating System<span class="ff2">）供应商的支持，比较知名的有：</span>Windows </div><div class="t m0 x2 h5 y13 ff4 fs2 fc0 sc0 ls0 ws0">CE<span class="ff2">、</span>Linux<span class="ff2">、</span>pSOS<span class="ff2">、</span>VxWorks<span class="ff2">、</span>Nucleus<span class="ff2">、</span>EPOC<span class="ff2">、</span>uCOS<span class="ff2">、</span>B<span class="_ _2"></span>eOS<span class="_ _6"> </span><span class="ff2">等。</span></div><div class="t m0 x3 h5 y14 ff2 fs2 fc0 sc0 ls0 ws0">随着国内嵌入式应用领域的发展，<span class="ff4">ARM<span class="_ _6"> </span></span>芯片必然会获得广泛的重视和应用。但是，由于<span class="_ _5"> </span><span class="ff4">ARM<span class="_ _6"> </span></span>芯片</div><div class="t m0 x2 h5 y15 ff2 fs2 fc0 sc0 ls0 ws0">有多达十几种的芯核结构，<span class="ff4">70<span class="_ _6"> </span></span>多芯片生产厂家，以及千变万化的内部功能配置组合，给开发人员在选择</div><div class="t m0 x2 h5 y16 ff2 fs2 fc0 sc0 ls0 ws0">方案时带来一定的困难。所以，对<span class="_ _6"> </span><span class="ff4">ARM<span class="_ _5"> </span></span>芯片做一对比研究是十分必要的。</div><div class="t m0 x2 h5 y17 ff5 fs2 fc0 sc0 ls0 ws0">1 ARM<span class="_ _6"> </span><span class="ff2 sc1">芯片选择的一般原则</span></div><div class="t m0 x3 h5 y18 ff2 fs2 fc0 sc0 ls0 ws0">从应用的角度，对在选择<span class="_ _6"> </span><span class="ff4">ARM<span class="_ _5"> </span></span>芯片时所应考虑的主要困素做一详细的说明。</div><div class="t m0 x3 h5 y19 ff4 fs2 fc0 sc0 ls0 ws0">1.1 ARM<span class="_ _6"> </span><span class="ff2">芯核</span></div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>
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ARM学习资料
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ARM（Advanced RISC Machines）是微处理器行业的一家知名企业，设计了大量高性能、廉价、耗能低的RISC处理器、相关技术及软件。技术具有性能高、成本低和能耗省的特点。适用于多种领域，比如嵌入控制、消费/教育类多媒体、DSP和移动式应用等。
ARM将其技术授权给世界上许多著名的半导体、软件和OEM厂商，每个厂商得到的都是一套独一无二的ARM相关技术及服务。利用这种合伙关系，ARM很快成为许多全球性RISC标准的缔造者。
ARM学习资料.7z
ARM学习资料- 基于ARM 32位微处理器和UC-OS实时操作系统开发套件.doc21KB
- 为何选用SAMSUNG S3C44B0进行开发？.doc22KB
- 32位RISC CPU ARM芯片的应用和选型.doc60KB
- ARM处理器与单片机性能价格比.doc30KB
- ARM7在嵌入式应用中启动程序的实现.doc31.5KB
- ARM开发调试教程.doc37KB
- 学好ARM开发的意义.doc20.5KB
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