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href="../../../topics/sdk/burnsys/burner_offline_lite.html" id="id-d5856e1963-link">离线烧录</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="usb_display-d5856e2011" class="topicref" data-id="usb_display" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action usb_display-d5856e2011-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/app/usb-display.html" id="usb_display-d5856e2011-link">USB Display 方案</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e2119" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2119-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/peripheral-intro.html" id="id-d5856e2119-link">外设移植</a><div class="wh-tooltip"><p class="shortdesc"><span class="ph">CTP、U 盘、SD 卡、有线和无线网络</span>等外设的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e2244" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2244-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/chapter-bringup.html" id="id-d5856e2244-link">BringUp</a><div class="wh-tooltip"><p class="shortdesc">在硬件上电后快速初始化系统，为操作系统的启动准备好必要的硬件环境。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e2345" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2345-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d5856e2345-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"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/ota/ota_test_guide.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">测试指南</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
Read time: 11 minute(s)
</div><div class="- topic/body body"><section class="- topic/section section" id="id__topic_v5r_j1q_wcc" data-ofbid="id__topic_v5r_j1q_wcc"><h2 class="- topic/title title sectiontitle">准备测试环境</h2>
<ul class="- topic/ul ul" id="id__ul_v5l_n4q_gdc" data-ofbid="id__ul_v5l_n4q_gdc"><li class="- topic/li li" data-ofbid="d106743e24__20250121171541">
<div class="- topic/p p" data-ofbid="d106743e26__20250121171541"><strong class="+ topic/ph hi-d/b ph b">硬件</strong><ul class="- topic/ul ul simple" id="id__ul_syq_lfq_wcc" data-ofbid="id__ul_syq_lfq_wcc"><li class="- topic/li li" data-ofbid="d106743e30__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e32__20250121171541">开发板</p>
</li><li class="- topic/li li" data-ofbid="d106743e35__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e37__20250121171541">TF 卡</p>
</li><li class="- topic/li li" data-ofbid="d106743e40__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e42__20250121171541">网线（如需测试网络 OTA ）</p>
</li></ul></div>
</li><li class="- topic/li li" data-ofbid="d106743e46__20250121171541">
<div class="- topic/p p" data-ofbid="d106743e48__20250121171541"><strong class="+ topic/ph hi-d/b ph b">软件</strong><ul class="- topic/ul ul simple" id="id__ul_in3_mfq_wcc" data-ofbid="id__ul_in3_mfq_wcc"><li class="- topic/li li" data-ofbid="d106743e52__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e54__20250121171541">PC 端的串口终端软件，用于 PC 和开发板进行串口通信。</p>
</li><li class="- topic/li li" data-ofbid="d106743e57__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e59__20250121171541">HTTP 服务器工具，用于网络 OTA 测试。如不需测试，可略过。 </p>
</li></ul></div>
</li></ul></section><section class="- topic/section section" id="id__section_dmd_p4q_gdc" data-ofbid="id__section_dmd_p4q_gdc"><h2 class="- topic/title title sectiontitle">测试流程</h2>
<p class="- topic/p p" data-ofbid="d106743e68__20250121171541">详细流程如下</p>
<div class="- topic/p p" data-ofbid="d106743e71__20250121171541">
<ol class="- topic/ol ol" id="id__ol_slh_5dv_1dc" data-ofbid="id__ol_slh_5dv_1dc"><li class="- topic/li li" data-ofbid="d106743e74__20250121171541">打开
OTA
相关配置后，保存退出。<div class="- topic/note note note note_note" id="id__note_ch3_wdv_1dc" data-ofbid="id__note_ch3_wdv_1dc"><span class="note__title">注：</span> 按照<a class="- topic/xref xref" href="ota_configure.html">参数配置</a>流程可打开
OTA
相关配置。</div></li><li class="- topic/li li" data-ofbid="d106743e90__20250121171541">重新编译和烧录镜像。<div class="- topic/p p" data-ofbid="d106743e92__20250121171541">以下为一个制作 CPIO 镜像的示例，在编译过程中可以看到如下打包信息，表示编译过程已经完成且更新了
<span class="+ topic/ph sw-d/filepath ph filepath">ota.cpio</span>
的大小：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_cr5_qfq_wcc" data-ofbid="id__pre_cr5_qfq_wcc">make CPIO image begin...
ota_info.bin
d21x_os.itb
rodata.fatfs
data.fatfs
<span class="hl-number">14663</span> blocks
Successfully updated size to ota.cpio
make CPIO image done...
</pre></div><div class="- topic/p p" data-ofbid="d106743e99__20250121171541">三个需升级的文件如下所示：<ul class="- topic/ul ul" id="id__ul_hn4_32v_1dc" data-ofbid="id__ul_hn4_32v_1dc"><li class="- topic/li li" data-ofbid="d106743e102__20250121171541"><span class="+ topic/ph sw-d/filepath ph filepath">d21x_os.itb</span>：系统文件系统</li><li class="- topic/li li" data-ofbid="d106743e106__20250121171541"><span class="+ topic/ph sw-d/filepath ph filepath">rodata.fatfs</span>：只读文件系统</li><li class="- topic/li li" data-ofbid="d106743e110__20250121171541"><span class="+ topic/ph sw-d/filepath ph filepath">data.fatfs</span>：读写文件系统</li></ul></div></li><li class="- topic/li li" data-ofbid="d106743e114__20250121171541">将 <span class="+ topic/ph sw-d/filepath ph filepath">ota.cpio</span> 放到 TF 卡根目录中。<p class="- topic/p p" data-ofbid="d106743e119__20250121171541">测试程序
<code class="+ topic/ph pr-d/codeph ph codeph">test_ota</code> 默认从 TF 卡根目录读取，源码路径为
<span class="+ topic/ph sw-d/filepath ph filepath">packages\artinchip\ota\test_ota.c。</span></p></li><li class="- topic/li li" data-ofbid="d106743e126__20250121171541">搭建 HTTP 服务器，准备网络 OTA。<div class="- topic/note note note note_note" id="id__note_icm_hdv_1dc" data-ofbid="id__note_icm_hdv_1dc"><span class="note__title">注：</span> 推荐使用 NGINX 工具在 Windows
环境下搭建 HTTP 服务器。</div><ol class="- topic/ol ol arabic simple" type="a" id="id__ol_ps2_qfq_wcc" data-ofbid="id__ol_ps2_qfq_wcc"><li class="- topic/li li" data-ofbid="d106743e131__20250121171541">从官网下载 NGINX 软件包，地址：<a class="- topic/xref xref reference external" href="https://nginx.org/en/download.html" target="_blank" rel="external noopener">https://nginx.org/en/download.html。</a></li><li class="- topic/li li" data-ofbid="d106743e136__20250121171541">解压缩下载的软件包。<div class="- topic/p p" data-ofbid="d106743e138__20250121171541">
<div class="- topic/note note note note_note" id="id__note_nq1_sbl_vcc" data-ofbid="id__note_nq1_sbl_vcc"><span class="note__title">注：</span> 解压包的路径不能包含中文字符。</div>
</div></li><li class="- topic/li li" data-ofbid="d106743e143__20250121171541">在 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">CMD</span> 环境下，启动 NGINX 服务。<p class="- topic/p p" data-ofbid="d106743e148__20250121171541">服务启动成功后，使用任务管理器中的两个
<span class="+ topic/keyword sw-d/cmdname keyword cmdname">nginx</span> 进程，测试服务器是否正常工作。</p></li><li class="- topic/li li" data-ofbid="d106743e153__20250121171541">适配 <span class="+ topic/ph sw-d/filepath ph filepath">nginx.conf</span> 文件配置后重新加载配置，并开放服务器目录。<p class="- topic/p p" data-ofbid="d106743e158__20250121171541">HTTP
服务器窗口如下所示：</p><div class="- topic/p p" data-ofbid="d106743e160__20250121171541">
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="id__image_ss2_qfq_wcc" src="../../../images/ota/http.png" width="384" alt="http"/></div><br/>
</div></li><li class="- topic/li li" data-ofbid="d106743e166__20250121171541">执行命令 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">co</span> 进入 <span class="+ topic/ph sw-d/filepath ph filepath">images</span> 目录下，找到
<span class="+ topic/ph sw-d/filepath ph filepath">ota.cpio</span> 升级包并将其复制到 NGINX 服务器目录。 </li></ol></li></ol>
</div>
</section></div><article class="- topic/topic topic nested1" aria-labelledby="ariaid-title2" xml:lang="zh-CN" lang="zh-CN" id="section_x5r_j1q_wcc"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/ota/ota_test_guide.dita">Edit online</a></span><h2 class="- topic/title title topictitle2" id="ariaid-title2">测试验证</h2><div class="- topic/body body"><div class="- topic/p p" data-ofbid="d106743e202__20250121171541">在执行升级之前，需要先确认当前环境变量、文件挂载信息和系统信息等，具体流程如下：<ol class="- topic/ol ol" id="section_x5r_j1q_wcc__ol_cjy_ndv_1dc" data-ofbid="section_x5r_j1q_wcc__ol_cjy_ndv_1dc"><li class="- topic/li li" data-ofbid="d106743e205__20250121171541">确认系统启动位置（上电默认打印）<div class="- topic/p p" data-ofbid="d106743e207__20250121171541">下列示例表示从 os
升级：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_qkg_4dv_1dc" data-ofbid="section_x5r_j1q_wcc__pre_qkg_4dv_1dc">Start-up from os</pre></div></li><li class="- topic/li li" data-ofbid="d106743e211__20250121171541">输入 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">fw_printenv</span>
命令查看当前的环境变量设置。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_fl5_4dv_1dc" data-ofbid="section_x5r_j1q_wcc__pre_fl5_4dv_1dc">fw_printenv</pre><div class="- topic/p p" data-ofbid="d106743e218__20250121171541">输出示例如下<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_tds_vkh_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_tds_vkh_tdc">MTD=spi0.<span class="hl-number">0</span>:<span class="hl-number">1</span>m(spl),<span class="hl-number">256</span>k(env),<span class="hl-number">256</span>k(env_r),<span class="hl-number">4</span>m(os),<span class="hl-number">4</span>m(os_r),<span class="hl-number">12</span>m(rodata),<span class="hl-number">12</span>m(rodata_r),<span class="hl-number">40</span>m(data),<span class="hl-number">40</span>m(data_r)osAB_next=A
rodataAB_next=A
dataAB_next=A
upgrade_available=<span class="hl-number">0</span>bootlimit=<span class="hl-number">5</span>bootcount=<span class="hl-number">0</span>rodata_partname=blk_rodata
rodata_partname_r=blk_rodata_r
data_partname=blk_data
data_partname_r=blk_data_r
osAB_now=A
rodataAB_now=A
dataAB_now=A
</pre></div></li><li class="- topic/li li" data-ofbid="d106743e222__20250121171541">使用 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">mount</span>
指令查看当前挂载的文件系统信息。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_r5h_pdv_1dc" data-ofbid="section_x5r_j1q_wcc__pre_r5h_pdv_1dc">mount</pre><div class="- topic/p p" data-ofbid="d106743e229__20250121171541">输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_vxt_ykh_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_vxt_ykh_tdc">filesystem device mountpoint
---------- ------------ ----------
devfs (NULL) /dev
rom (NULL) /
elm blk_rodata /rodata
elm blk_data /data
elm sd0 /sdcard
</pre></div></li></ol></div><section class="- topic/section section" id="section_x5r_j1q_wcc__id8" data-ofbid="section_x5r_j1q_wcc__id8"><h3 class="- topic/title title sectiontitle">验证 TF 卡 OTA</h3>
<div class="- topic/p p" data-ofbid="d106743e237__20250121171541">
<ol class="- topic/ol ol" id="section_x5r_j1q_wcc__ol_ery_zbv_1dc" data-ofbid="section_x5r_j1q_wcc__ol_ery_zbv_1dc"><li class="- topic/li li" data-ofbid="d106743e240__20250121171541">烧录完成后，断开电源，上电，插入 TF 卡。</li><li class="- topic/li li" data-ofbid="d106743e242__20250121171541">在串口中直接输入升级命令 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">test_ota</span>，开始 OTA
升级。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_sj4_blh_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_sj4_blh_tdc">test_ota</pre><ul class="- topic/ul ul" id="section_x5r_j1q_wcc__ul_dmt_pfq_wcc" data-ofbid="section_x5r_j1q_wcc__ul_dmt_pfq_wcc"><li class="- topic/li li" data-ofbid="d106743e250__20250121171541">确认 cpio 文件信息。</li><li class="- topic/li li" data-ofbid="d106743e252__20250121171541">擦除 nand flash 分区。</li><li class="- topic/li li" data-ofbid="d106743e254__20250121171541">分别升级
<span class="+ topic/ph sw-d/filepath ph filepath">d21x_os.itb</span>、<span class="+ topic/ph sw-d/filepath ph filepath">rodata.fatfs</span>、<span class="+ topic/ph sw-d/filepath ph filepath">data.fatfs</span>
文件。</li><li class="- topic/li li" data-ofbid="d106743e265__20250121171541">验证文件完整性。</li><li class="- topic/li li" data-ofbid="d106743e267__20250121171541">升级完成后，系统会自动重启并加载新的固件。</li></ul><div class="- topic/p p" data-ofbid="d106743e269__20250121171541">结果输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_n1f_blh_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_n1f_blh_tdc"><span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: find file ota_info.bin cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: cpio file size:<span class="hl-number">10538496</span>
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: cpio file version:<span class="hl-number">1.0</span>.<span class="hl-number">0</span>
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: Parsing cpio file info is successful!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: find file d21x_os.itb cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: osAB_now= A
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: Upgrade B system
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: Start upgrade to os_r, flag_cpio:<span class="hl-number">1</span>!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: Partition (os_r) find success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: Start erase nand flash partition!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: Erase nand flash partition success! len=<span class="hl-number">3201</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: Start upgrade d21x_os.itb!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: Download: [=&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">27</span> I/NO_TAG: Download: [==&gt;
......
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Sum check success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: download d21x_os.itb success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Incomplete header info! shdr.buflen =<span class="hl-number">801</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: find file rodata.fatfs cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: rodataAB_now= A
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Upgrade B rodatafs
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Start upgrade to rodata_r, flag_cpio:<span class="hl-number">2</span>!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Partition (rodata_r) find success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Start erase nand flash partition!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Erase nand flash partition success! len=<span class="hl-number">9601</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Start upgrade rodata.fatfs!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Download: [&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Download: [=&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">29</span> I/NO_TAG: Download: [==&gt;
......
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: Sum check success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: download rodata.fatfs success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: find file data.fatfs cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: dataAB_now= A
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: Upgrade B datafs
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: Start upgrade to blk_data_r, flag_cpio:<span class="hl-number">3</span>!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: Partition (blk_data_r) find success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: NFTL partition not need to erase!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: Start upgrade data.fatfs!
[ND]nftl start:<span class="hl-number">320</span>,<span class="hl-number">51</span>
[ND]nftl ok!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: Download: [&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: Download: [=&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: Download: [==&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">33</span> I/NO_TAG: Download: [===&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">36</span> I/NO_TAG: Sum check success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">36</span> I/NO_TAG: download data.fatfs success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">36</span> I/NO_TAG: Incomplete header info! shdr.buflen =<span class="hl-number">1601</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">36</span> I/NO_TAG: find file TRAILER!!! cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">36</span> I/NO_TAG: find file TRAILER!!! cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">36</span> I/NO_TAG: os Next startup in B system
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">36</span> I/NO_TAG: rodata Next mount in B system
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">36</span> I/NO_TAG: data Next mount in B system
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">15</span>:<span class="hl-number">59</span>:<span class="hl-number">36</span> I/NO_TAG: Restarting system ...
</pre></div></li></ol>
</div>
</section><section class="- topic/section section" id="section_x5r_j1q_wcc__id10" data-ofbid="section_x5r_j1q_wcc__id10"><h3 class="- topic/title title sectiontitle">验证网络 OTA</h3>
<ol class="- topic/ol ol" id="section_x5r_j1q_wcc__ol_nxn_jcv_1dc" data-ofbid="section_x5r_j1q_wcc__ol_nxn_jcv_1dc"><li class="- topic/li li" data-ofbid="d106743e284__20250121171541">烧录完成后，断开电源，上电，插入网线。</li><li class="- topic/li li" data-ofbid="d106743e286__20250121171541">查看启动打印信息。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_cpm_pfq_wcc" data-ofbid="section_x5r_j1q_wcc__pre_cpm_pfq_wcc">ai:
IPv4 Address : <span class="hl-number">192.168</span>.<span class="hl-number">31.200</span>
Default Gateway: <span class="hl-number">192.168</span>.<span class="hl-number">31.1</span>
Subnet mask : <span class="hl-number">255.255</span>.<span class="hl-number">255.0</span>
MAC addr : <span class="hl-number">00</span>:<span class="hl-number">22</span>:<span class="hl-number">44</span>:<span class="hl-number">88</span>:<span class="hl-number">77</span>:<span class="hl-number">66</span>
[I] aicphy_poll_thread()<span class="hl-number">635</span> Port <span class="hl-number">0</span> link UP! autoneg mode: speed <span class="hl-number">100</span>M, full duplex, flow control off.
</pre></li><li class="- topic/li li" data-ofbid="d106743e290__20250121171541">测试网络连通状态。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_dpm_pfq_wcc" data-ofbid="section_x5r_j1q_wcc__pre_dpm_pfq_wcc">ping <span class="hl-number">192.168</span>.<span class="hl-number">31.22</span></pre><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_l5d_yqw_5dc" data-ofbid="section_x5r_j1q_wcc__codeblock_l5d_yqw_5dc">Reply from <span class="hl-number">192.168</span>.<span class="hl-number">31.22</span>: time=<span class="hl-number">2</span>ms</pre><div class="- topic/note note note note_note" id="section_x5r_j1q_wcc__note_b4x_lcv_1dc" data-ofbid="section_x5r_j1q_wcc__note_b4x_lcv_1dc"><span class="note__title">注：</span> ping 通网络，需要等待一段时间</div></li><li class="- topic/li li" data-ofbid="d106743e298__20250121171541">执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">help</span> 命令查看 OTA
升级，命令如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_epm_pfq_wcc" data-ofbid="section_x5r_j1q_wcc__pre_epm_pfq_wcc">...
http_ota - Use HTTP to download the firmware
...
</pre></li><li class="- topic/li li" data-ofbid="d106743e305__20250121171541">执行下列命令启动 OTA
升级：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_fpm_pfq_wcc" data-ofbid="section_x5r_j1q_wcc__pre_fpm_pfq_wcc">http_ota</pre><div class="- topic/p p" data-ofbid="d106743e309__20250121171541">或者
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_e3n_zqw_5dc" data-ofbid="section_x5r_j1q_wcc__codeblock_e3n_zqw_5dc">http_ota http:<em class="hl-comment">//192.168.31.22/ota.cpio</em></pre></div><div class="- topic/note note note note_note" id="section_x5r_j1q_wcc__note_jyw_pcv_1dc" data-ofbid="section_x5r_j1q_wcc__note_jyw_pcv_1dc"><span class="note__title">注：</span>
<p class="- topic/p p" data-ofbid="d106743e315__20250121171541">升级完成以后，自动重启，加载新代码启动。</p>
</div><div class="- topic/p p" data-ofbid="d106743e318__20250121171541">以下是相关升级信息：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_hj4_wt4_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_hj4_wt4_tdc">using uri: http:<em class="hl-comment">//192.168.31.20/ota.cpio</em>
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: OTA file size is (<span class="hl-number">10538496</span>)<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: find file ota_info.bin cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: cpio file size:<span class="hl-number">10538496</span>
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: cpio file version:<span class="hl-number">1.0</span>.<span class="hl-number">0</span>
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: Parsing cpio file info once is sufficient and successful!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: find file d21x_os.itb cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: osAB_now= B
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: Upgrade A system
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: Start upgrade to os, flag_cpio:<span class="hl-number">1</span>!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: Partition (os) find success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">08</span> I/NO_TAG: Start erase nand flash partition!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">09</span> I/NO_TAG: Erase nand flash partition success! len=<span class="hl-number">3201</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">09</span> I/NO_TAG: Start upgrade d21x_os.itb!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">08</span>:<span class="hl-number">08</span>:<span class="hl-number">50</span> I/NO_TAG: Download: [==&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">08</span>:<span class="hl-number">08</span>:<span class="hl-number">50</span> I/NO_TAG: Download: [===&gt;
......
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: Sum check success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: download d21x_os.itb success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: find file rodata.fatfs cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: rodataAB_now= B
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: Upgrade A rodatafs
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: Start upgrade to rodata, flag_cpio:<span class="hl-number">2</span>!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: Partition (rodata) find success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: Start erase nand flash partition!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: Erase nand flash partition success! len=<span class="hl-number">9601</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: Start upgrade rodata.fatfs!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: Download: [&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">11</span> I/NO_TAG: Download: [=&gt;
......
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">16</span> I/NO_TAG: find file data.fatfs cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">16</span> I/NO_TAG: dataAB_now= B
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">16</span> I/NO_TAG: Upgrade A datafs
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">16</span> I/NO_TAG: Start upgrade to blk_data, flag_cpio:<span class="hl-number">3</span>!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">16</span> I/NO_TAG: Partition (blk_data) find success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">16</span> I/NO_TAG: NFTL partition not need to erase!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">16</span> I/NO_TAG: Start upgrade data.fatfs!
[ND]nftl start:<span class="hl-number">320</span>,<span class="hl-number">51</span>
[ND]nftl ok!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">16</span> I/NO_TAG: Download: [&gt;
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">16</span> I/NO_TAG: Download: [=&gt;
......
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">21</span> I/NO_TAG: download data.fatfs success!
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">21</span> I/NO_TAG: find file TRAILER!!! cpio data success
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">21</span> I/NO_TAG: Download firmware to flash success.
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">21</span> I/NO_TAG: System now will restart...
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">21</span> I/NO_TAG: os Next startup in A system
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">21</span> I/NO_TAG: rodata Next mount in A system
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">21</span> I/NO_TAG: data Next mount in A system
<span class="hl-number">01</span>-<span class="hl-number">01</span> <span class="hl-number">16</span>:<span class="hl-number">10</span>:<span class="hl-number">21</span> I/NO_TAG: Restarting system ...
</pre></div></li></ol>
</section><section class="- topic/section section" id="section_x5r_j1q_wcc__id15" data-ofbid="section_x5r_j1q_wcc__id15"><h3 class="- topic/title title sectiontitle">升级判断</h3>
<p class="- topic/p p" data-ofbid="d106743e327__20250121171541">从程序打印 log 差异和文件系统中文件差异判断当前运行的版本。</p>
<div class="- topic/div div section" id="section_x5r_j1q_wcc__boot"><strong class="+ topic/ph hi-d/b ph b">Boot 相关打印信息</strong>
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_cv2_pfq_wcc" data-ofbid="section_x5r_j1q_wcc__pre_cv2_pfq_wcc">Start-up from os/os_r</pre><ul class="- topic/ul ul arabic simple" id="section_x5r_j1q_wcc__ol_dv2_pfq_wcc" data-ofbid="section_x5r_j1q_wcc__ol_dv2_pfq_wcc"><li class="- topic/li li" data-ofbid="d106743e337__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e339__20250121171541"><span class="+ topic/keyword pr-d/parmname keyword parmname">os</span> 表示从 <span class="+ topic/keyword pr-d/parmname keyword parmname">os</span> 分区读取数据启动 RTT
程序。</p>
</li><li class="- topic/li li" data-ofbid="d106743e347__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e349__20250121171541"><span class="+ topic/keyword pr-d/parmname keyword parmname">os_r</span> 表示从 <span class="+ topic/keyword pr-d/parmname keyword parmname">os_r</span> 分区读取数据启动 RTT
程序。</p>
</li></ul>
</div>
<div class="- topic/div div section" id="section_x5r_j1q_wcc__rtt"><strong class="+ topic/ph hi-d/b ph b">RTT 相关打印信息</strong>
<div class="- topic/p p" data-ofbid="d106743e363__20250121171541">如果有进行文件系统升级，可以关注以下信息<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_ev2_pfq_wcc" data-ofbid="section_x5r_j1q_wcc__pre_ev2_pfq_wcc">Mount APP in blk blk_rodata_r
Mount APP in blk blk_data_r</pre></div><ul class="- topic/ul ul arabic simple" id="section_x5r_j1q_wcc__ol_fv2_pfq_wcc" data-ofbid="section_x5r_j1q_wcc__ol_fv2_pfq_wcc"><li class="- topic/li li" data-ofbid="d106743e368__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e370__20250121171541">blk_data 表示从 blk_data 分区挂载读写文件系统。</p>
</li><li class="- topic/li li" data-ofbid="d106743e373__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e375__20250121171541">blk_data_r 表示从 blk_data_r 分区挂载读写文件系统。</p>
</li><li class="- topic/li li" data-ofbid="d106743e378__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e380__20250121171541">blk_rodata 表示从 blk_rodata 分区挂载只读文件系统。</p>
</li><li class="- topic/li li" data-ofbid="d106743e383__20250121171541">
<p class="- topic/p p" data-ofbid="d106743e385__20250121171541">blk_rodata_r 表示从 blk_rodata_r 分区挂载只读文件系统。</p>
</li></ul><div class="- topic/note note tip note_tip" id="section_x5r_j1q_wcc__note_ww3_tcv_1dc" data-ofbid="section_x5r_j1q_wcc__note_ww3_tcv_1dc"><span class="note__title">提示：</span>
<p class="- topic/p p" data-ofbid="d106743e390__20250121171541">可以再次输入 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">mount</span> 命令查看文件系统挂载点。</p>
</div>
</div>
</section><section class="- topic/section section" id="section_x5r_j1q_wcc__id16" data-ofbid="section_x5r_j1q_wcc__id16"><h3 class="- topic/title title sectiontitle">版本回退</h3>
<p class="- topic/p p" data-ofbid="d106743e402__20250121171541">在 OTA 升级过程中，如果需要回退到先前的版本，可以通过
RTT
或者 BootLoader 方式设置系统和文件系统的启动分区来实现。</p>
<div class="- topic/p p" data-ofbid="d106743e409__20250121171541">以下是详细的版本回退步骤和注意事项说明：<ol class="- topic/ol ol" id="section_x5r_j1q_wcc__ol_b2w_34l_vcc" data-ofbid="section_x5r_j1q_wcc__ol_b2w_34l_vcc"><li class="- topic/li li" data-ofbid="d106743e412__20250121171541">
<div class="- topic/p p" data-ofbid="d106743e414__20250121171541">在进行任何操作之前，确保已经备份了设备上的重要数据，以防数据丢失。<ul class="- topic/ul ul" id="section_x5r_j1q_wcc__ul_uzy_w4l_vcc" data-ofbid="section_x5r_j1q_wcc__ul_uzy_w4l_vcc"><li class="- topic/li li" data-ofbid="d106743e417__20250121171541">在回退过程中，设备可能会短暂失去响应，耐心等待设备重启并加载旧版本固件。</li><li class="- topic/li li" data-ofbid="d106743e419__20250121171541">如果回退后设备无法正常启动，可能需要重新进行 OTA 升级或联系技术支持。</li></ul></div>
</li><li class="- topic/li li" data-ofbid="d106743e422__20250121171541">在 BootLoader 或系统中，输入<span class="+ topic/keyword sw-d/cmdname keyword cmdname">fw_setenv</span>
命令设置下次启动的系统和文件系统分区：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_pvd_kw4_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_pvd_kw4_tdc">fw_setenv osAB_next B
fw_setenv rodataAB_next B
fw_setenv dataAB_next A
</pre><ul class="- topic/ul ul" id="section_x5r_j1q_wcc__ul_dcd_l4l_vcc" data-ofbid="section_x5r_j1q_wcc__ul_dcd_l4l_vcc"><li class="- topic/li li" data-ofbid="d106743e430__20250121171541"><span class="+ topic/keyword sw-d/cmdname keyword cmdname">osAB_next = B</span>: 将下次系统启动分区设置为 B。</li><li class="- topic/li li" data-ofbid="d106743e434__20250121171541"><span class="+ topic/keyword sw-d/cmdname keyword cmdname">rodataAB_next = B</span>: 将下次只读文件系统挂载分区设置为 B。</li><li class="- topic/li li" data-ofbid="d106743e438__20250121171541"><span class="+ topic/keyword sw-d/cmdname keyword cmdname">dataAB_next = A</span>: 将下次读写文件系统挂载分区设置为 A。</li></ul></li><li class="- topic/li li" data-ofbid="d106743e442__20250121171541">使用 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">fw_printenv</span>
命令查看当前的环境变量设置，确保上述设置已成功应用：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_ycq_r4l_vcc" data-ofbid="section_x5r_j1q_wcc__codeblock_ycq_r4l_vcc">fw_printenv</pre><div class="- topic/p p" data-ofbid="d106743e449__20250121171541">系统输出如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_zsx_lw4_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_zsx_lw4_tdc">MTD=spi0.<span class="hl-number">0</span>:<span class="hl-number">1</span>m(spl),<span class="hl-number">256</span>k(env),<span class="hl-number">256</span>k(env_r),<span class="hl-number">4</span>m(os),<span class="hl-number">4</span>m(os_r),<span class="hl-number">12</span>m(rodata),<span class="hl-number">12</span>m(rodata_r),<span class="hl-number">40</span>m(data),<span class="hl-number">40</span>m(data_r)
bootlimit=<span class="hl-number">5</span>
rodata_partname=blk_rodata
rodata_partname_r=blk_rodata_r
data_partname=blk_data
data_partname_r=blk_data_r
bootcount=<span class="hl-number">1</span>
upgrade_available=<span class="hl-number">0</span>
osAB_now=A # 当前系统启动分区为 A 分区
rodataAB_now=A # 当前只读系统挂载为 A 分区
dataAB_now=B # 当前读写系统挂载为 B 分区
osAB_next=B # 下次系统启动分区为 B 分区
rodataAB_next=B # 下次只读系统挂载为 B 分区
dataAB_next=A # 下次读写系统挂载为 A 分区</pre></div></li><li class="- topic/li li" data-ofbid="d106743e453__20250121171541">输入 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">reboot</span>
命令重启设备，使新的设置生效：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_zfy_v4l_vcc" data-ofbid="section_x5r_j1q_wcc__codeblock_zfy_v4l_vcc">reboot</pre></li></ol></div>
</section><div class="- topic/example example" id="section_x5r_j1q_wcc__example_ofj_k54_tdc" data-ofbid="section_x5r_j1q_wcc__example_ofj_k54_tdc"><h3 class="- topic/title title sectiontitle">在 RTT 中进行回退操作</h3>
<ol class="- topic/ol ol" id="section_x5r_j1q_wcc__ol_vhp_n54_tdc" data-ofbid="section_x5r_j1q_wcc__ol_vhp_n54_tdc"><li class="- topic/li li" data-ofbid="d106743e467__20250121171541">通过 <code class="+ topic/ph pr-d/codeph ph codeph">fw_setenv</code> 命令设置下次启动时系统、只读文件系统和读写文件系统的分区。<ul class="- topic/ul ul" id="section_x5r_j1q_wcc__ul_wjd_b54_tdc" data-ofbid="section_x5r_j1q_wcc__ul_wjd_b54_tdc"><li class="- topic/li li" data-ofbid="d106743e473__20250121171541">将系统设置为下次从 B
分区启动：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_lvl_b54_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_lvl_b54_tdc">fw_setenv osAB_next B</pre></li><li class="- topic/li li" data-ofbid="d106743e477__20250121171541">将只读文件系统设置为下次从 B 分区启动：<div class="- topic/p p" data-ofbid="d106743e479__20250121171541">
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_nv5_4fq_wcc" data-ofbid="section_x5r_j1q_wcc__pre_nv5_4fq_wcc">fw_setenv rodataAB_next B</pre>
</div></li><li class="- topic/li li" data-ofbid="d106743e484__20250121171541">
<div class="- topic/p p" data-ofbid="d106743e486__20250121171541">将读写文件系统设置为下次从 A
分区启动：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_qwq_d54_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_qwq_d54_tdc">fw_setenv dataAB_next A</pre></div>
</li></ul></li><li class="- topic/li li" data-ofbid="d106743e491__20250121171541">
<div class="- topic/p p" data-ofbid="d106743e493__20250121171541">使用 <code class="+ topic/ph pr-d/codeph ph codeph">fw_printenv</code>
命令查看当前的环境变量配置。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_lgp_g54_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_lgp_g54_tdc">fw_printenv</pre></div>
<div class="- topic/p p" data-ofbid="d106743e501__20250121171541">输出结果示例如下所示：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_l5y_454_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_l5y_454_tdc">MTD=spi0.<span class="hl-number">0</span>:<span class="hl-number">1</span>m(spl),<span class="hl-number">256</span>k(env),<span class="hl-number">256</span>k(env_r),<span class="hl-number">4</span>m(os),<span class="hl-number">4</span>m(os_r),<span class="hl-number">12</span>m(rodata),<span class="hl-number">12</span>m(rodata_r),<span class="hl-number">40</span>m(data),<span class="hl-number">40</span>m(data_r)bootlimit=<span class="hl-number">5</span>rodata_partname=blk_rodata
rodata_partname_r=blk_rodata_r
data_partname=blk_data
data_partname_r=blk_data_r
bootcount=<span class="hl-number">1u</span>pgrade_available=<span class="hl-number">0</span>osAB_now=A # 当前系统启动分区为 A 分区 rodataAB_now=A # 当前只读系统挂载为 A 分区 dataAB_now=B # 当前读写系统挂载为 B 分区 osAB_next=B # 下次系统启动分区为 B 分区 rodataAB_next=B # 下次只读系统挂载为 B 分区 dataAB_next=A # 下次读写系统挂载为 A 分区
</pre></div>
</li><li class="- topic/li li" data-ofbid="d106743e506__20250121171541">重启设备，使设置生效。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_rfq_r54_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_rfq_r54_tdc">reboot</pre></li></ol>
<p class="- topic/p p" data-ofbid="d106743e511__20250121171541">如果需要回退到之前的分区配置，只需再次设置相应的环境变量即可。</p>
</div><div class="- topic/example example" id="section_x5r_j1q_wcc__example_mfw_l54_tdc" data-ofbid="section_x5r_j1q_wcc__example_mfw_l54_tdc"><h3 class="- topic/title title sectiontitle">在 Boot 中进行回退操作 </h3>
<ol class="- topic/ol ol" id="section_x5r_j1q_wcc__ol_k1b_3v4_tdc" data-ofbid="section_x5r_j1q_wcc__ol_k1b_3v4_tdc"><li class="- topic/li li" data-ofbid="d106743e520__20250121171541">
<div class="- topic/p p" data-ofbid="d106743e522__20250121171541">使用 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">fw_setenv</span> 命令设置下次启动时系统、只读文件系统和读写文件系统的分区。<ul class="- topic/ul ul" id="section_x5r_j1q_wcc__ul_rmk_kv4_tdc" data-ofbid="section_x5r_j1q_wcc__ul_rmk_kv4_tdc"><li class="- topic/li li" data-ofbid="d106743e528__20250121171541">
<div class="- topic/p p" data-ofbid="d106743e530__20250121171541">将系统设置为下次从 A
分区启动。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__pre_pv5_4fq_wcc" data-ofbid="section_x5r_j1q_wcc__pre_pv5_4fq_wcc">fw_setenv osAB_next A</pre></div>
</li><li class="- topic/li li" data-ofbid="d106743e535__20250121171541">
<div class="- topic/p p" data-ofbid="d106743e537__20250121171541">将只读文件系统设置为下次 A
分区启动。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_w3p_3v4_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_w3p_3v4_tdc">fw_setenv rodataAB_next A</pre></div>
</li><li class="- topic/li li" data-ofbid="d106743e542__20250121171541">
<div class="- topic/p p" data-ofbid="d106743e544__20250121171541">将读写文件系统设置为下次 B
分区启动。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_q2x_3v4_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_q2x_3v4_tdc">fw_setenv dataAB_next B</pre></div>
</li></ul></div>
</li><li class="- topic/li li" data-ofbid="d106743e550__20250121171541">使用 <code class="+ topic/ph pr-d/codeph ph codeph">reboot</code>
命令重启设备，使设置生效。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_x5r_j1q_wcc__codeblock_kkd_jv4_tdc" data-ofbid="section_x5r_j1q_wcc__codeblock_kkd_jv4_tdc">reboot</pre><p class="- topic/p p" data-ofbid="d106743e557__20250121171541">如果需要回退到之前的分区配置，只需再次设置相应的环境变量即可。</p></li></ol>
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