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SDK 编译后的固件能够在板子上正常运行。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e2418" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e2418-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d3752e2418-link">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div></li></ul></div>
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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" role="article" aria-labelledby="ariaid-title1">
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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://aicdocco/taskstopics/sdk/burnsys/flow.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">系统更新流程</h1>
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<div class="date inPage">16 May 2025</div><div style="color: gray;">
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Read time: 1 minute(s)
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<div class="- topic/body body">
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<p class="- topic/p p" data-ofbid="d99591e28__20250519091515">系统更新流程因产品和平台而异，关于各个产品平台所支持的更新方式，可查看
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<a class="- topic/xref xref" href="statis.html">平台升级方式</a>。</p>
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<section class="- topic/section section" id="id__section_tkr_34n_hdc" data-ofbid="id__section_tkr_34n_hdc"><h2 class="- topic/title title sectiontitle">刷机模式</h2>
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<div class="- topic/div div">
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<div class="- topic/p p" data-ofbid="d99591e42__20250519091515">开发板只有进入到刷机模式才能进行刷机操作，使用下列任意方法可进入刷机模式：<ul class="- topic/ul ul simple" id="id__ul_wyp_dj2_vcc" data-ofbid="id__ul_wyp_dj2_vcc">
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<li class="- topic/li li" data-ofbid="d99591e46__20250519091515">
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<p class="- topic/p p" data-ofbid="d99591e48__20250519091515">空片直接进入：开发板上存储介质为空片，则上电直接进入刷机模式。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d99591e52__20250519091515">
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<p class="- topic/p p" data-ofbid="d99591e54__20250519091515">短路烧录引脚：短路烧录引脚（PA0）到地，则上电直接进入刷机模式。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d99591e58__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e60__20250519091515">按住刷机键：如果开发板有刷机按键，则按住刷机键上电或者 reset，进入刷机模式，开发板上标注为
|
||
<span class="+ topic/ph ui-d/uicontrol ph uicontrol">uboot</span> 按键。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e67__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e69__20250519091515">短路存储介质引脚：短路存储介质的 command、clk 等引脚到地，造成读数据失败，则上电直接进入刷机模式，如短路 SPI NAND 的
|
||
4、5 脚。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e73__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e75__20250519091515">通过控制台命令：如果开发板能进入 U-Boot ，在开机的过程中按住 Ctrl + c, 则系统会进入 U-Boot 控制台，输入
|
||
<span class="+ topic/keyword sw-d/cmdname keyword cmdname">aicupg usb 0</span> 命令可以进入烧写模式。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e83__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e85__20250519091515">Linux 控制台命令：如果开发板能能进入 Linux 控制台，输入 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">aicupg</span>
|
||
命令，系统可以重启后进入烧写模式。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e92__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e94__20250519091515">ADB 服务：如果开发板能能进入 Linux 系统，并且 ADB 服务开启，刷机工具会检查到设备并使能 “开始”
|
||
按钮，可以直接点击<span class="+ topic/ph ui-d/uicontrol ph uicontrol">开始</span>刷机。</p>
|
||
</li>
|
||
</ul></div>
|
||
</div>
|
||
</section>
|
||
<section class="- topic/section section" id="id__section_irr_j1q_wcc" data-ofbid="id__section_irr_j1q_wcc"><h2 class="- topic/title title sectiontitle">刷机流程</h2>
|
||
|
||
<ol class="- topic/ol ol" id="id__ol_qgl_xc2_vcc" data-ofbid="id__ol_qgl_xc2_vcc">
|
||
<li class="- topic/li li" data-ofbid="d99591e111__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e113__20250519091515">等待系统上电，启动 SoC 内部的 BROM 程序。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e117__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e119__20250519091515">BROM 按照如下顺序检查存储介质中是否有系统数据：</p>
|
||
<ul class="- topic/ul ul simple" id="id__ul_oll_xc2_vcc" data-ofbid="id__ul_oll_xc2_vcc">
|
||
<li class="- topic/li li" data-ofbid="d99591e124__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e126__20250519091515">SDMC1 （SD 卡）</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e130__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e132__20250519091515">SPI NAND</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e136__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e138__20250519091515">SPI NOR</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e142__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e144__20250519091515">SDMC0（eMMC）</p>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e150__20250519091515">
|
||
<div class="- topic/p p" data-ofbid="d99591e152__20250519091515">根据检测到的存储介质中的数据，BROM 执行以下相应启动操作：<ul class="- topic/ul ul" id="id__ul_g3t_fd2_vcc" data-ofbid="id__ul_g3t_fd2_vcc">
|
||
<li class="- topic/li li" data-ofbid="d99591e156__20250519091515">如果检测到 SD 卡，且 SD 卡为启动盘，执行卡启动。</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e159__20250519091515">如果检测到 SD 卡，且 SD 卡中是 FAT32 文件系统，并且有刷机的两个文件，则进行 SD 卡刷机。</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e162__20250519091515">如果检测到存储介质 SPI NAND、SPI NOR 或 eMMC，且其中含有数据，则执行启动系统。</li>
|
||
</ul></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e167__20250519091515">
|
||
<div class="- topic/p p" data-ofbid="d99591e169__20250519091515">U-Boot 执行以下检查，并根据检查结果，进入不同模式：<ul class="- topic/ul ul" id="id__ul_iwc_g22_vcc" data-ofbid="id__ul_iwc_g22_vcc">
|
||
<li class="- topic/li li" data-ofbid="d99591e173__20250519091515">检查刷机键（PA0）是否被拉低，拉低则进入<a class="- topic/xref xref" href="flow.html#id__section_tkr_34n_hdc">刷机模式</a>，否则启动 kernel。</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e180__20250519091515">检查 U 盘（USB0）中是否是 FAT32 文件系统，并且是否有刷机的两个文件，两个条件均满足则进行 U 盘刷机，否则启动
|
||
kernel。<p class="- topic/p p" data-ofbid="d99591e182__20250519091515">kernel 启动成功后会挂载 rootfs，系统正常启动。</p></li>
|
||
</ul></div>
|
||
<div class="- topic/p p" data-ofbid="d99591e186__20250519091515">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="id__image_vyp_dj2_vcc" src="../../../images/burnsys/burnsys_flow.png" width="576" alt="burnsys_flow"/></div><br/>
|
||
</div>
|
||
</li>
|
||
</ol>
|
||
</section>
|
||
<section class="- topic/section section" id="id__ota" data-ofbid="id__ota"><h2 class="- topic/title title sectiontitle">OTA 流程</h2>
|
||
|
||
|
||
<ol class="- topic/ol ol simple" id="id__ol_s1v_l32_vcc" data-ofbid="id__ol_s1v_l32_vcc">
|
||
<li class="- topic/li li" data-ofbid="d99591e208__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e210__20250519091515">系统启动到正常状态，准备升级需要的固件。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e214__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e216__20250519091515">通过 OTA 方式下载固件到本地，或通过 SD 卡，U 盘，USB 线等外部存储器将固件复制到本地。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e220__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e222__20250519091515">设置升级标记，重启系统。</p>
|
||
<p class="- topic/p p" data-ofbid="d99591e225__20250519091515">系统重新启动后会进入升级系统，</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d99591e229__20250519091515">
|
||
<p class="- topic/p p" data-ofbid="d99591e231__20250519091515">升级开发板到新的固件。</p>
|
||
<p class="- topic/p p" data-ofbid="d99591e234__20250519091515">升级过程中出现异常掉电，下次启动还能够继续完成剩下的升级过程。</p>
|
||
<p class="- topic/p p" data-ofbid="d99591e237__20250519091515">升级完成后重新启动系统即可进入新系统。</p>
|
||
</li>
|
||
</ol>
|
||
<figure class="- topic/fig fig fignone" data-ofbid="d99591e242__20250519091515">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="id__image_yyp_dj2_vcc" src="../../../images/burnsys/burnsys_ota.png" alt="burnsys_ota"/></div><br/>
|
||
</figure>
|
||
<p class="- topic/p p" data-ofbid="d99591e251__20250519091515">关于 OTA 升级逻辑的详细使用说明，可参考 <a class="- topic/xref xref" href="../ota/ota_guide.html">OTA 方案</a>。</p>
|
||
</section>
|
||
</div>
|
||
</article></main></div>
|
||
|
||
|
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|
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|
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|
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<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
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<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#id__section_tkr_34n_hdc" data-tocid="id__section_tkr_34n_hdc">刷机模式</a></div></li><li class="section-item"><div class="section-title"><a href="#id__section_irr_j1q_wcc" data-tocid="id__section_irr_j1q_wcc">刷机流程</a></div></li><li class="section-item"><div class="section-title"><a href="#id__ota" data-tocid="id__ota">OTA 流程</a></div></li></ul></div>
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|
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Update Time: 2025-05-19
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