FAT12_100K.zip_fat12_fat12 文件系统 flash_其他嵌入式/单片机内容

<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/626eae2240256a40ce83d658/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/626eae2240256a40ce83d658/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">名称</div><div class="t m0 x2 h3 y3 ff1 fs0 fc0 sc0 ls0 ws0">开<span class="_ _0"></span>始<span class="_ _0"></span>字</div><div class="t m0 x2 h3 y4 ff1 fs0 fc0 sc0 ls0 ws0">节</div><div class="t m0 x3 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">长度<span class="_ _1"> </span>内容<span class="_ _2"> </span>参考值</div><div class="t m0 x1 h4 y5 ff2 fs0 fc0 sc0 ls0 ws0">BS_jmpBOO<span class="_ _3"></span>T<span class="_ _4"> </span>0<span class="_ _5"> </span>3</div><div class="t m0 x4 h3 y6 ff1 fs0 fc0 sc0 ls0 ws0">一个短跳转指令</div><div class="t m0 x5 h4 y7 ff2 fs0 fc0 sc0 ls0 ws0">jmp Label_07c00H</div><div class="t m0 x5 h4 y8 ff2 fs0 fc0 sc0 ls0 ws0">nop</div><div class="t m0 x1 h4 y9 ff2 fs0 fc0 sc0 ls0 ws0">BS_OEMName<span class="_ _6"> </span>3<span class="_ _5"> </span>8</div><div class="t m0 x4 h3 ya ff1 fs0 fc0 sc0 ls0 ws0">厂商名</div><div class="t m0 x5 h4 y9 ff2 fs0 fc0 sc0 ls0 ws0">'QingFeng'</div><div class="t m0 x1 h4 yb ff2 fs0 fc0 sc0 ls0 ws0">BPB_BytesP<span class="_ _3"></span>erSec<span class="_ _7"> </span>11<span class="_ _8"> </span>2</div><div class="t m0 x4 h3 yc ff1 fs0 fc0 sc0 ls0 ws0">每扇区字节数（<span class="ff2">Bytes/Sect<span class="_ _3"></span>or<span class="ff1">）</span></span></div><div class="t m0 x5 h4 yb ff2 fs0 fc0 sc0 ls0 ws0">0x200</div><div class="t m0 x1 h4 yd ff2 fs0 fc0 sc0 ls0 ws0">BPB_SecPerClus<span class="_ _9"> </span>13<span class="_ _8"> </span>1</div><div class="t m0 x4 h3 ye ff1 fs0 fc0 sc0 ls0 ws0">每簇扇区数（<span class="ff2">Sector/Clust<span class="_ _3"></span>er<span class="ff1">）</span></span></div><div class="t m0 x5 h4 yd ff2 fs0 fc0 sc0 ls0 ws0">0x1</div><div class="t m0 x1 h4 yf ff2 fs0 fc0 sc0 ls0 ws0">BPB_Res<span class="_ _3"></span>vdSecCn<span class="_ _3"></span>t<span class="_ _a"> </span>14<span class="_ _8"> </span>2</div><div class="t m0 x4 h3 y10 ff2 fs0 fc0 sc0 ls0 ws0">Boot<span class="_"> </span><span class="ff1">记录占用多少扇区</span></div><div class="t m0 x5 h4 yf ff2 fs0 fc0 sc0 ls0 ws0">ox<span class="_ _3"></span>1</div><div class="t m0 x1 h4 y11 ff2 fs0 fc0 sc0 ls0 ws0">BPB_NumF<span class="_ _b"></span>A<span class="_ _b"></span>T<span class="_ _c"></span>s<span class="_ _d"> </span>16<span class="_ _8"> </span>1</div><div class="t m0 x4 h3 y12 ff1 fs0 fc0 sc0 ls0 ws0">共有多少<span class="_ _e"> </span><span class="ff2">F<span class="_ _b"></span>A<span class="_ _c"></span>T<span class="_"> </span><span class="ff1">表</span></span></div><div class="t m0 x5 h4 y11 ff2 fs0 fc0 sc0 ls0 ws0">0x2</div><div class="t m0 x1 h4 y13 ff2 fs0 fc0 sc0 ls0 ws0">BPB_RootEn<span class="_ _3"></span>tCnt<span class="_ _f"> </span>17<span class="_ _8"> </span>2</div><div class="t m0 x4 h3 y14 ff1 fs0 fc0 sc0 ls0 ws0">根目录区文件最大数</div><div class="t m0 x5 h4 y13 ff2 fs0 fc0 sc0 ls0 ws0">0xE0</div><div class="t m0 x1 h4 y15 ff2 fs0 fc0 sc0 ls0 ws0">BPB_T<span class="_ _c"></span>otSec16<span class="_ _10"> </span>19<span class="_ _8"> </span>2</div><div class="t m0 x4 h3 y16 ff1 fs0 fc0 sc0 ls0 ws0">扇区总数</div><div class="t m0 x5 h4 y15 ff2 fs0 fc0 sc0 ls0 ws0">0xB40[2*80*18]</div><div class="t m0 x1 h4 y17 ff2 fs0 fc0 sc0 ls0 ws0">BPB_Media<span class="_ _11"> </span>21<span class="_ _8"> </span>1</div><div class="t m0 x4 h3 y18 ff1 fs0 fc0 sc0 ls0 ws0">介质描述符</div><div class="t m0 x5 h4 y17 ff2 fs0 fc0 sc0 ls0 ws0">0xF0</div><div class="t m0 x1 h4 y19 ff2 fs0 fc0 sc0 ls0 ws0">BPB_F<span class="_ _b"></span>A<span class="_ _c"></span>TSz16<span class="_ _12"> </span>22<span class="_ _8"> </span>2</div><div class="t m0 x4 h3 y1a ff1 fs0 fc0 sc0 ls0 ws0">每个<span class="_ _e"> </span><span class="ff2">F<span class="_ _b"></span>A<span class="_ _c"></span>T<span class="_"> </span><span class="ff1">表所占扇区数</span></span></div><div class="t m0 x5 h4 y19 ff2 fs0 fc0 sc0 ls0 ws0">0x9</div><div class="t m0 x1 h4 y1b ff2 fs0 fc0 sc0 ls0 ws0">BPB_SecPerT<span class="_ _c"></span>rk<span class="_ _13"> </span>24<span class="_ _8"> </span>2</div><div class="t m0 x4 h3 y1c ff1 fs0 fc0 sc0 ls0 ws0">每磁道扇区数（<span class="ff2">Sector/tr<span class="_ _3"></span>ack<span class="ff1">）</span></span></div><div class="t m0 x5 h4 y1b ff2 fs0 fc0 sc0 ls0 ws0">0x12</div><div class="t m0 x1 h4 y1d ff2 fs0 fc0 sc0 ls0 ws0">BPB_NumHeads<span class="_ _14"> </span>26<span class="_ _8"> </span>2</div><div class="t m0 x4 h3 y1e ff1 fs0 fc0 sc0 ls0 ws0">磁头数（面数）</div><div class="t m0 x5 h4 y1d ff2 fs0 fc0 sc0 ls0 ws0">0x2</div><div class="t m0 x1 h4 y1f ff2 fs0 fc0 sc0 ls0 ws0">BPB_HiddSec<span class="_ _4"> </span>28<span class="_ _8"> </span>4</div><div class="t m0 x4 h3 y20 ff1 fs0 fc0 sc0 ls0 ws0">隐藏扇区数</div><div class="t m0 x5 h4 y1f ff2 fs0 fc0 sc0 ls0 ws0">0</div><div class="t m0 x1 h4 y21 ff2 fs0 fc0 sc0 ls0 ws0">BPB_T<span class="_ _c"></span>otSec32<span class="_ _10"> </span>32<span class="_ _8"> </span>4</div><div class="t m0 x4 h3 y22 ff1 fs0 fc0 sc0 ls0 ws0">如<span class="_ _15"></span>果<span class="_ _e"> </span><span class="ff2">BPB<span class="_ _15"></span>_T<span class="_ _c"></span>otSec16=0,<span class="_ _15"></span><span class="ff1">则<span class="_ _15"></span>由<span class="_ _15"></span>这<span class="_ _15"></span>里给</span></span></div><div class="t m0 x4 h3 y23 ff1 fs0 fc0 sc0 ls0 ws0">出扇区数</div><div class="t m0 x5 h4 y21 ff2 fs0 fc0 sc0 ls0 ws0">0</div><div class="t m0 x1 h4 y24 ff2 fs0 fc0 sc0 ls0 ws0">BS_DrvNum<span class="_ _16"> </span>36<span class="_ _8"> </span>1</div><div class="t m0 x4 h3 y25 ff2 fs0 fc0 sc0 ls0 ws0">INT 13H<span class="_"> </span><span class="ff1">的驱动器号</span></div><div class="t m0 x5 h4 y24 ff2 fs0 fc0 sc0 ls0 ws0">0</div><div class="t m0 x1 h4 y26 ff2 fs0 fc0 sc0 ls0 ws0">BS_Reserved1<span class="_ _10"> </span>37<span class="_ _8"> </span>1</div><div class="t m0 x4 h3 y27 ff1 fs0 fc0 sc0 ls0 ws0">保留，未使用</div><div class="t m0 x5 h4 y26 ff2 fs0 fc0 sc0 ls0 ws0">0</div><div class="t m0 x1 h4 y28 ff2 fs0 fc0 sc0 ls0 ws0">BS_BootSig<span class="_ _17"> </span>38<span class="_ _8"> </span>1</div><div class="t m0 x4 h3 y29 ff1 fs0 fc0 sc0 ls0 ws0">扩展引导标记<span class="ff2">(29h)</span></div><div class="t m0 x5 h4 y28 ff2 fs0 fc0 sc0 ls0 ws0">0x29</div><div class="t m0 x1 h4 y2a ff2 fs0 fc0 sc0 ls0 ws0">BS_V<span class="_ _b"></span>olID<span class="_ _18"> </span>39<span class="_ _8"> </span>4</div><div class="t m0 x4 h3 y2b ff1 fs0 fc0 sc0 ls0 ws0">卷序列号</div><div class="t m0 x5 h4 y2a ff2 fs0 fc0 sc0 ls0 ws0">0</div><div class="t m0 x1 h4 y2c ff2 fs0 fc0 sc0 ls0 ws0">BS_V<span class="_ _b"></span>olLab<span class="_ _19"> </span>43<span class="_ _8"> </span>11</div><div class="t m0 x4 h3 y2d ff1 fs0 fc0 sc0 ls0 ws0">卷标</div><div class="t m0 x5 h4 y2c ff2 fs0 fc0 sc0 ls0 ws0">'QingFeng'</div><div class="t m0 x1 h4 y2e ff2 fs0 fc0 sc0 ls0 ws0">BS_FileSysT<span class="_ _b"></span>ype<span class="_ _1a"> </span>54<span class="_ _8"> </span>8</div><div class="t m0 x4 h3 y2f ff1 fs0 fc0 sc0 ls0 ws0">文件系统类型</div><div class="t m0 x5 h4 y2e ff2 fs0 fc0 sc0 ls0 ws0">'F<span class="_ _b"></span>A<span class="_ _c"></span>T12'</div><div class="t m0 x1 h3 y30 ff1 fs0 fc0 sc0 ls0 ws0">引<span class="_ _1b"></span>导<span class="_ _1b"></span>代<span class="_ _1b"></span>码<span class="_ _1b"></span>及<span class="_ _1b"></span>其<span class="_ _1b"></span>他<span class="_ _1b"></span>内</div><div class="t m0 x1 h3 y31 ff1 fs0 fc0 sc0 ls0 ws0">容</div><div class="t m0 x2 h4 y32 ff2 fs0 fc0 sc0 ls0 ws0">62<span class="_ _8"> </span>448</div><div class="t m0 x4 h3 y33 ff1 fs0 fc0 sc0 ls0 ws0">引导代码及其他数据</div><div class="t m0 x5 h3 y30 ff1 fs0 fc0 sc0 ls0 ws0">引<span class="_ _1b"></span>导<span class="_ _15"></span>代<span class="_ _1b"></span>码<span class="_ _1b"></span>（<span class="_ _15"></span>剩<span class="_ _1b"></span>余<span class="_ _1b"></span>空<span class="_ _15"></span>间<span class="_ _1b"></span>用<span class="_ _1c"> </span><span class="ff2">0</span></div><div class="t m0 x5 h3 y31 ff1 fs0 fc0 sc0 ls0 ws0">填充）</div><div class="t m0 x1 h3 y34 ff1 fs0 fc0 sc0 ls0 ws0">结束标志<span class="_ _e"> </span><span class="ff2">0xAA55</span></div><div class="t m0 x2 h4 y35 ff2 fs0 fc0 sc0 ls0 ws0">510<span class="_ _1d"> </span>2</div><div class="t m0 x4 h3 y36 ff1 fs0 fc0 sc0 ls0 ws0">第<span class="_ _1"> </span><span class="ff2">510<span class="_"> </span></span>字<span class="_ _15"></span>节<span class="_ _15"></span>为<span class="_ _1"> </span><span class="ff2">0x55<span class="_ _15"></span></span>，<span class="_ _15"></span>第<span class="_ _1"> </span><span class="ff2">511<span class="_ _1"> </span></span>字<span class="_ _15"></span>节</div><div class="t m0 x4 h3 y37 ff1 fs0 fc0 sc0 ls0 ws0">为<span class="_ _e"> </span><span class="ff2">0xAA</span></div><div class="t m0 x5 h4 y35 ff2 fs0 fc0 sc0 ls0 ws0">0xAA55</div><div class="t m0 x6 h3 y38 ff2 fs0 fc0 sc0 ls0 ws0"> <span class="ff3"> F<span class="_ _b"></span>A<span class="_ _b"></span>T12<span class="_ _e"> </span><span class="ff1 sc1">文件格式</span></span></div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>