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2025-04-23 17:54:31 +08:00
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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">9 Apr 2025</div><div style="color: gray;">
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2025-01-23 16:37:00 +08:00
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Read time: 1 minute(s)
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2025-04-23 17:54:31 +08:00
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</div>
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<div class="- topic/body body">
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<p class="- topic/p p" data-ofbid="d99138e28__20250409171041">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="d99138e42__20250409171041">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="d99138e46__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e48__20250409171041">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="d99138e52__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e54__20250409171041">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="d99138e58__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e60__20250409171041">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
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<span class="+ topic/ph ui-d/uicontrol ph uicontrol">uboot</span> 按键。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d99138e67__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e69__20250409171041">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
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4、5 脚。</p>
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<li class="- topic/li li" data-ofbid="d99138e73__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e75__20250409171041">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
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2025-01-23 16:37:00 +08:00
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<span class="+ topic/keyword sw-d/cmdname keyword cmdname">aicupg usb 0</span> 命令可以进入烧写模式。</p>
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2025-04-23 17:54:31 +08:00
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</li>
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<li class="- topic/li li" data-ofbid="d99138e83__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e85__20250409171041">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>
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2025-01-23 16:37:00 +08:00
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命令，系统可以重启后进入烧写模式。</p>
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2025-04-23 17:54:31 +08:00
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</li>
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<li class="- topic/li li" data-ofbid="d99138e92__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e94__20250409171041">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”
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2025-01-23 16:37:00 +08:00
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按钮，可以直接点击<span class="+ topic/ph ui-d/uicontrol ph uicontrol">开始</span>刷机。</p>
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2025-04-23 17:54:31 +08:00
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</li>
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</ul></div>
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2025-01-23 16:37:00 +08:00
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</div>
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2025-04-23 17:54:31 +08:00
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</section>
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<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>
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2025-01-23 16:37:00 +08:00
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2025-04-23 17:54:31 +08:00
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<ol class="- topic/ol ol" id="id__ol_qgl_xc2_vcc" data-ofbid="id__ol_qgl_xc2_vcc">
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<li class="- topic/li li" data-ofbid="d99138e111__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e113__20250409171041">等待系统上电，启动 SoC 内部的 BROM 程序。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d99138e117__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e119__20250409171041">BROM 按照如下顺序检查存储介质中是否有系统数据：</p>
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<ul class="- topic/ul ul simple" id="id__ul_oll_xc2_vcc" data-ofbid="id__ul_oll_xc2_vcc">
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<li class="- topic/li li" data-ofbid="d99138e124__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e126__20250409171041">SDMC1 （SD 卡）</p>
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</li>
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<li class="- topic/li li" data-ofbid="d99138e130__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e132__20250409171041">SPI NAND</p>
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</li>
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<li class="- topic/li li" data-ofbid="d99138e136__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e138__20250409171041">SPI NOR</p>
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</li>
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<li class="- topic/li li" data-ofbid="d99138e142__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e144__20250409171041">SDMC0（eMMC）</p>
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</li>
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</ul>
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</li>
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<li class="- topic/li li" data-ofbid="d99138e150__20250409171041">
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<div class="- topic/p p" data-ofbid="d99138e152__20250409171041">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">
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<li class="- topic/li li" data-ofbid="d99138e156__20250409171041">如果检测到 SD 卡，且 SD 卡为启动盘，执行卡启动。</li>
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<li class="- topic/li li" data-ofbid="d99138e159__20250409171041">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>
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<li class="- topic/li li" data-ofbid="d99138e162__20250409171041">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>
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</ul></div>
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</li>
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<li class="- topic/li li" data-ofbid="d99138e167__20250409171041">
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<div class="- topic/p p" data-ofbid="d99138e169__20250409171041">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">
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<li class="- topic/li li" data-ofbid="d99138e173__20250409171041">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>
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<li class="- topic/li li" data-ofbid="d99138e180__20250409171041">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
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kernel。<p class="- topic/p p" data-ofbid="d99138e182__20250409171041">kernel 启动成功后会挂载 rootfs，系统正常启动。</p></li>
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</ul></div>
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<div class="- topic/p p" data-ofbid="d99138e186__20250409171041">
|
2025-01-23 16:37:00 +08:00
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<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/>
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</div>
|
2025-04-23 17:54:31 +08:00
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</li>
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</ol>
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</section>
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<section class="- topic/section section" id="id__ota" data-ofbid="id__ota"><h2 class="- topic/title title sectiontitle">OTA 流程</h2>
|
2025-01-23 16:37:00 +08:00
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2025-04-23 17:54:31 +08:00
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<ol class="- topic/ol ol simple" id="id__ol_s1v_l32_vcc" data-ofbid="id__ol_s1v_l32_vcc">
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<li class="- topic/li li" data-ofbid="d99138e208__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e210__20250409171041">系统启动到正常状态，准备升级需要的固件。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d99138e214__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e216__20250409171041">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>
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</li>
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<li class="- topic/li li" data-ofbid="d99138e220__20250409171041">
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<p class="- topic/p p" data-ofbid="d99138e222__20250409171041">设置升级标记，重启系统。</p>
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<p class="- topic/p p" data-ofbid="d99138e225__20250409171041">系统重新启动后会进入升级系统，</p>
|
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</li>
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<li class="- topic/li li" data-ofbid="d99138e229__20250409171041">
|
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<p class="- topic/p p" data-ofbid="d99138e231__20250409171041">升级开发板到新的固件。</p>
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|
<p class="- topic/p p" data-ofbid="d99138e234__20250409171041">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>
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<p class="- topic/p p" data-ofbid="d99138e237__20250409171041">升级完成后重新启动系统即可进入新系统。</p>
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</li>
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</ol>
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|
<figure class="- topic/fig fig fignone" data-ofbid="d99138e242__20250409171041">
|
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|
<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/>
|
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|
</figure>
|
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|
|
<p class="- topic/p p" data-ofbid="d99138e251__20250409171041">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>
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</section>
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</div>
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</article></main></div>
|
2025-01-23 16:37:00 +08:00
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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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2025-04-23 17:54:31 +08:00
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Update Time: 2025-04-09
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