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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/advanced/fs_image.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">烧录镜像格式和工具</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"><section class="- topic/section section" id="burn-image-and-tool__id6" data-ofbid="burn-image-and-tool__id6"><h2 class="- topic/title title sectiontitle">镜像格式</h2>
            
            <p class="- topic/p p" data-ofbid="d257581e29__20250121171714">ArtInChip 的烧录镜像文件由组件 (FirmWare Component, FWC) 以及对应的组件元信息组成。 数据分布如下图所示：</p>
            <figure class="- topic/fig fig fignone" id="burn-image-and-tool__id28" data-ofbid="burn-image-and-tool__id28"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="burn-image-and-tool__image_zgc_sdr_3dc" src="../../../images/boot/boot_image_format.png" alt="image_format"/></div><br/><figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">烧录镜像格式</span></figcaption></figure>
            <p class="- topic/p p" data-ofbid="d257581e39__20250121171714">其中一些需要打包的数据文件，都被当做组件 (FWC) 进行处理，包括 <span class="+ topic/keyword pr-d/parmname keyword parmname">SPL</span> ， <span class="+ topic/keyword pr-d/parmname keyword parmname">os</span> ，
                <span class="+ topic/keyword pr-d/parmname keyword parmname">rodata</span> ， <span class="+ topic/keyword pr-d/parmname keyword parmname">data</span> 等数据。</p>
            <ul class="- topic/ul ul" id="burn-image-and-tool__ul_e3l_xdn_hdc" data-ofbid="burn-image-and-tool__ul_e3l_xdn_hdc"><li class="- topic/li li" data-ofbid="d257581e55__20250121171714">
                    <div class="- topic/p p" data-ofbid="d257581e57__20250121171714">Image Header
                        的具体格式如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="burn-image-and-tool__codeblock_rpn_xdn_hdc" data-ofbid="burn-image-and-tool__codeblock_rpn_xdn_hdc"><strong class="hl-keyword">struct</strong> artinchip_fw_hdr{
    <strong class="hl-keyword">char</strong> magic[<span class="hl-number">8</span>];              <em class="hl-comment">// 固定为 "AIC.FW"</em>
    <strong class="hl-keyword">char</strong> platform[<span class="hl-number">64</span>];          <em class="hl-comment">// 该镜像文件适用的芯片平台</em>
    <strong class="hl-keyword">char</strong> product[<span class="hl-number">64</span>];           <em class="hl-comment">// 该镜像文件适用的产品型号</em>
    <strong class="hl-keyword">char</strong> version[<span class="hl-number">64</span>];           <em class="hl-comment">// 该镜像的版本</em>
    <strong class="hl-keyword">char</strong> media_type[<span class="hl-number">64</span>];        <em class="hl-comment">// 该镜像文件可烧录的存储介质</em>
    u32  media_dev_id;          <em class="hl-comment">// 该镜像文件可烧录的存储介质 ID</em>
    u8   nand_array_org[<span class="hl-number">64</span>];    <em class="hl-comment">/* NAND Array Organization */</em>
    u32  meta_offset;           <em class="hl-comment">/* Meta Area start offset */</em>
    u32  meta_size;             <em class="hl-comment">/* Meta Area size */</em>
    u32  file_offset;           <em class="hl-comment">/* File data Area start offset */</em>
    u32  file_size;             <em class="hl-comment">/* File data Area size */</em>
};</pre></div>
                </li><li class="- topic/li li" data-ofbid="d257581e62__20250121171714">
                    <div class="- topic/p p" data-ofbid="d257581e64__20250121171714">FWC Meta
                        的格式如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="burn-image-and-tool__codeblock_z1r_xdn_hdc" data-ofbid="burn-image-and-tool__codeblock_z1r_xdn_hdc"><strong class="hl-keyword">struct</strong> artinchip_fwc_meta {
    <strong class="hl-keyword">char</strong> magic[<span class="hl-number">8</span>];      <em class="hl-comment">// 固定为 "META"</em>
    <strong class="hl-keyword">char</strong> name[<span class="hl-number">64</span>];      <em class="hl-comment">// 对应组件的名字</em>
    <strong class="hl-keyword">char</strong> partition[<span class="hl-number">64</span>]; <em class="hl-comment">// 该组件要烧录的分区名字</em>
    u32  offset;        <em class="hl-comment">// 该组件数据在镜像文件中的偏移</em>
    u32  size;          <em class="hl-comment">// 该组件数据的大小</em>
    u32  crc32;         <em class="hl-comment">// 该组件数据的 CRC32 校验值</em>
    u32  ram;           <em class="hl-comment">// 当组件要下载到平台 RAM 时，要下载的地址</em>
    <strong class="hl-keyword">char</strong> attr[<span class="hl-number">64</span>]       <em class="hl-comment">// 该组件的属性，字符串表示</em>
};</pre></div>
                </li></ul>
        </section><section class="- topic/section section" id="burn-image-and-tool__id7" data-ofbid="burn-image-and-tool__id7"><h2 class="- topic/title title sectiontitle">制作工具</h2>
            
            <div class="- topic/p p" data-ofbid="d257581e75__20250121171714"><span class="+ topic/ph sw-d/filepath ph filepath">mk_image.py</span> 可用于以下用途：<ul class="- topic/ul ul" id="burn-image-and-tool__ul_xx2_b2n_hdc" data-ofbid="burn-image-and-tool__ul_xx2_b2n_hdc"><li class="- topic/li li" data-ofbid="d257581e80__20250121171714">
                        <p class="- topic/p p" data-ofbid="d257581e82__20250121171714">制作 AIC 格式的启动镜像，包括签名和加密</p>
                    </li><li class="- topic/li li" data-ofbid="d257581e85__20250121171714">
                        <p class="- topic/p p" data-ofbid="d257581e87__20250121171714">打包固件组件，生成用于升级的固件镜像文件 <span class="+ topic/ph sw-d/filepath ph filepath">scripts/tools/mk_image.py</span>。</p>
                    </li></ul></div>
            
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