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                        <div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" 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/d13x_bare_boot/generate-cus-brom-app.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">生成客制化的 Boot ROM 启动程序</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
                    Read time: 1 minute(s)
                </div><div class="- topic/body concept/conbody body conbody"><p class="- topic/shortdesc shortdesc"></p><p class="- topic/p p" data-ofbid="d51797e20__20250121171518">芯片在上电启动时，首先运行芯片内部的 Boot ROM 程序，Boot ROM 程序加载并运行下一级程序。</p><div class="- topic/p p" data-ofbid="d51797e22__20250121171518">Boot ROM 加载的程序需要按照一定的格式打包才会被运行。具体的打包格式可参考用户手册的启动章节。制作客制化 BROM
                启动程序时，需要做好相关的连接地址、内存空间分配等规划：<div class="- topic/note note note note_note" id="generate-cus-brom-app__note_xjj_zxc_ndc" data-ofbid="generate-cus-brom-app__note_xjj_zxc_ndc"><span class="note__title">注：</span> 关于启动镜像格式，可查看用户相关章节。</div><ul class="- topic/ul ul" id="generate-cus-brom-app__ul_qcm_qvb_wcc" data-ofbid="generate-cus-brom-app__ul_qcm_qvb_wcc"><li class="- topic/li li" data-ofbid="d51797e27__20250121171518">
                    <p class="- topic/p p" data-ofbid="d51797e29__20250121171518">配置启动镜像格式中的以下关键字段：</p>
                    <ul class="- topic/ul ul" id="generate-cus-brom-app__ul_onm_rvb_wcc" data-ofbid="generate-cus-brom-app__ul_onm_rvb_wcc"><li class="- topic/li li" data-ofbid="d51797e33__20250121171518">
                            <p class="- topic/p p" data-ofbid="d51797e35__20250121171518"><span class="+ topic/keyword pr-d/parmname keyword parmname">Loader binary data</span>: 客制化程序存放的区域。</p>
                        </li><li class="- topic/li li" data-ofbid="d51797e40__20250121171518">
                            <p class="- topic/p p" data-ofbid="d51797e42__20250121171518"><span class="+ topic/keyword pr-d/parmname keyword parmname">Load address</span>: 启动镜像的加载地址。</p>
                        </li><li class="- topic/li li" data-ofbid="d51797e47__20250121171518">
                            <p class="- topic/p p" data-ofbid="d51797e49__20250121171518"><span class="+ topic/keyword pr-d/parmname keyword parmname">Entry point</span>: 客制化程序的程序入口地址，对应程序的链接地址。</p>
                        </li></ul>
                </li><li class="- topic/li li" data-ofbid="d51797e55__20250121171518">做好内存空间使用规划：<ul class="- topic/ul ul arabic simple" id="generate-cus-brom-app__ol_sxq_xvb_wcc" data-ofbid="generate-cus-brom-app__ol_sxq_xvb_wcc"><li class="- topic/li li" data-ofbid="d51797e58__20250121171518">
                            <p class="- topic/p p" data-ofbid="d51797e60__20250121171518">D13x SRAM 的开始地址为 0x30040000</p>
                        </li><li class="- topic/li li" data-ofbid="d51797e63__20250121171518">
                            <p class="- topic/p p" data-ofbid="d51797e65__20250121171518">SRAM 的最开始 16K Byte，Boot ROM 运行时在使用，因此启动镜像不能被加载到该区间。</p>
                        </li><li class="- topic/li li" data-ofbid="d51797e68__20250121171518">
                            <p class="- topic/p p" data-ofbid="d51797e70__20250121171518">启动镜像头信息占用 256 字节，因此 <span class="+ topic/keyword pr-d/parmname keyword parmname">Load address</span> 和 <span class="+ topic/keyword pr-d/parmname keyword parmname">Entry
                                    point</span>之间至少预留 256 字节。</p>
                            <p class="- topic/p p" data-ofbid="d51797e79__20250121171518">启动镜像加载的内存地址，应该是 0x30044000 之后:</p>
                        </li></ul></li></ul></div><div class="- topic/p p" data-ofbid="d51797e82__20250121171518">使用 <span class="- topic/ph ph">Luban-Lite</span> 中的 mk_image.exe 或 mk_image.py 工具，可以单独生成启动镜像。相关工具可从 <span class="- topic/ph ph">Luban-Lite</span> 的最新 SDK 获取。<ul class="- topic/ul ul simple" id="generate-cus-brom-app__ul_ctq_xqq_gdc" data-ofbid="generate-cus-brom-app__ul_ctq_xqq_gdc"><li class="- topic/li li" data-ofbid="d51797e91__20250121171518">
                    <p class="- topic/p p" data-ofbid="d51797e93__20250121171518"><span class="+ topic/ph sw-d/filepath ph filepath">tools/scripts/mk_image.exe</span></p>
                </li><li class="- topic/li li" data-ofbid="d51797e97__20250121171518">
                    <p class="- topic/p p" data-ofbid="d51797e99__20250121171518"><span class="+ topic/ph sw-d/filepath ph filepath">tools/scripts/mk_image.py</span></p>
                </li></ul></div><div class="- topic/p p" data-ofbid="d51797e103__20250121171518">以下以 <span class="+ topic/ph sw-d/filepath ph filepath">app.bin</span> 应用为例，演示生成、烧录和启动镜像的详细流程。<ol class="- topic/ol ol" id="generate-cus-brom-app__ol_xhk_xqq_gdc" data-ofbid="generate-cus-brom-app__ol_xhk_xqq_gdc"><li class="- topic/li li" data-ofbid="d51797e109__20250121171518">
                    <p class="- topic/p p" data-ofbid="d51797e111__20250121171518">参考下面的 <span class="+ topic/ph sw-d/filepath ph filepath">image_cfg.json</span> 文件配置，进行打包并生成 <span class="+ topic/ph sw-d/filepath ph filepath">app.aic</span>
                        镜像：</p>
                    <pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="generate-cus-brom-app__codeblock_jgl_yqq_gdc" data-ofbid="generate-cus-brom-app__codeblock_jgl_yqq_gdc">{
     <span class="hl-string">"pre-process"</span>: { <em class="hl-comment">// Pre-proccess to generate image components from raw data</em>
        <span class="hl-string">"aicimage"</span>: { <em class="hl-comment">// Create aic boot image</em>
             <span class="hl-string">"app.aic"</span>: {
                <span class="hl-string">"loader"</span>: {
                    <span class="hl-string">"file"</span>: <span class="hl-string">"app.bin"</span>,
                    <span class="hl-string">"load address"</span>: <span class="hl-string">"0x30044000"</span>,
                    <span class="hl-string">"entry point"</span>:  <span class="hl-string">"0x30044100"</span>, <em class="hl-comment">// 256 byte aic header</em>
                },
            },
        },
    },
}
</pre>
                    <p class="- topic/p p" data-ofbid="d51797e123__20250121171518">此处 <span class="+ topic/ph sw-d/filepath ph filepath">image_cfg.json</span> 描述了将 <span class="+ topic/ph sw-d/filepath ph filepath">app.bin</span> 打包生成
                        <span class="+ topic/ph sw-d/filepath ph filepath">app.aic</span> ，放到 loader 区域，并且设置了加载地址和入口地址。</p>
                </li><li class="- topic/li li" data-ofbid="d51797e135__20250121171518">
                    <div class="- topic/p p" data-ofbid="d51797e137__20250121171518">执行下列命令在当前目录生成 <span class="+ topic/ph sw-d/filepath ph filepath">app.aic</span> 文件，此文件为芯片 Boot ROM
                        可加载的镜像文件：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="generate-cus-brom-app__codeblock_glt_yqq_gdc" data-ofbid="generate-cus-brom-app__codeblock_glt_yqq_gdc">mk_image.py -p -c &lt;path_to_image_cfg_dir&gt;/image_cfg.json -d &lt;path_to_app_dir&gt;
</pre></div>
                    <div class="- topic/p p" data-ofbid="d51797e145__20250121171518">如果将 <span class="+ topic/ph sw-d/filepath ph filepath">mk_image.py</span>
                        <span class="+ topic/ph sw-d/filepath ph filepath">image_cfg.json</span>
                        <span class="+ topic/ph sw-d/filepath ph filepath">app.bin</span>
                        都放在一个目录，则命令为：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="generate-cus-brom-app__codeblock_pb1_zqq_gdc" data-ofbid="generate-cus-brom-app__codeblock_pb1_zqq_gdc">mk_image.py -p -c image_cfg.json -d .
</pre></div>
                </li></ol></div></div></article></main></div>
                        
                        
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  </div>
</footer>
        
        <div id="go2top" class="d-print-none">
            <span class="oxy-icon oxy-icon-up"></span>
        </div>
        
        <div id="modal_img_large" class="modal">
            <span class="close oxy-icon oxy-icon-remove"></span>
            <div id="modal_img_container"></div>
            <div id="caption"></div>
        </div>
        
        
    <script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>

        
    </body>
</html>