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FAT File System Module fat 文件系统模块

<tr><td>f_printf</td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td></tr>
<tr><td>f_gets</td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td></tr>
</table>
</div>

<div class="para">
<h3>挿偄僼傽僀儖柤</h3>
<p>FatFs儌僕儏乕儖偼R0.07偐傜挿偄僼傽僀儖柤(LFN)傪僒億乕僩偟傑偟偨丅僼傽僀儖偵晅偗傜傟偨2偮偺堎側傞柤慜(抁偄僼傽儖柤偲挿偄僼傽僀儖柤)偼丄f_readdir娭悢傪彍偔僼傽僀儖憖嶌娭悢偵偍偄偰摟夁偱偡丅LFN婡擻傪桳岠偵偡傞偵偼丄<tt>_USE_LFN</tt>傪1傑偨偼2偵愝掕偟丄OEM-Unicode憡屳曄姺娭悢 ff_convert 傪僾儘僕僃僋僩偵捛壛偟傑偡丅偙傟傜偺娭悢偼丄<tt>cc*.c</tt>偵娷傑傟偰偄傑偡丅LFN婡擻偼丄壛偊偰偁傞掱搙偺儚乕僋丒僄儕傾(LFN憖嶌僶僢僼傽)傪昁梫偲偟傑偡丅僶僢僼傽挿偼巊梡偱偒傞儊儌儕偵墳偠偰<tt>_MAX_LFN</tt>僆僾僔儑儞偱峔惉偝傟傞偙偲偑偱偒傑偡丅LFN偺挿偝偼嵟戝255暥帤偵払偡傞偺偱丄LFN姰慡懳墳偺偨傔偵偼<tt>_MAX_LFN</tt>偼255偵愝掕偝傟傞傋偒偱偡丅梌偊傜傟偨僼傽僀儖柤偵懳偟偰僶僢僼傽挿偑晄懌偟偨応崌丄僼傽僀儖娭悢偼<tt>FR_INVALID_NAME</tt>偱幐攕偟傑偡丅</p>
<p>LFN婡擻傪儕僄儞僩儔儞僩峔惉偱巊梡偡傞応崌偼丄<tt>_USE_LFN</tt>偼2偵愝掕偝傟側偗傟偽側傝傑偣傫丅偙偺応崌丄僼傽僀儖娭悢偼僶僢僼傽傪僗僞僢僋偵妋曐偟傑偡丅僶僢僼傽丒僒僀僘偼丄<tt>_MAX_LFN</tt> * 2 + 1 僶僀僩偵側傞偺偱丄屇傃弌偟懁僗僞僢僋偺僒僀僘偼偦傟傪峫椂偟偨廫暘側僒僀僘偱側偗傟偽側傝傑偣傫丅</p>
<table class="lst2 rset">
<caption>LFN cfg on ARM7DMI</caption>
<tr><th>僐乕僪儁乕僕</th><th>ROM僒僀僘[bytes]</th></tr>
<tr><td>SBCS</td><td>+4719</td></tr>
<tr><td>932(Shift-JIS)</td><td>+63755</td></tr>
<tr><td>936(GBK)</td><td>+178943</td></tr>
<tr><td>949(Korean)</td><td>+141003</td></tr>
<tr><td>950(Big5)</td><td>+112631</td></tr>
</table>
<p>LFN傪桳岠偵偡傞偲丄慖戰偝傟偨僐乕僪丒儁乕僕偵墳偠偰儌僕儏乕儖丒僒僀僘偑憹戝偝傟傑偡丅塃偺昞偵奺僐乕僪丒儁乕僕偵偍偗傞LFN傪桳岠偵偟偨偲偒偺儌僕儏乕儖丒僒僀僘偺堘偄傪帵偟傑偡丅巹偨偪擔杮恖丄拞崙恖偍傛傃娯崙恖偼悢枩偺暥帤傪帩偪傑偡丅晄岾側偙偲偵丄偦傟偼嫄戝側OEM亅Unicode憡屳曄姺僥乕僽儖傪梫媮偟丄儌僕儏乕儖丒僒僀僘偼寑揑偵憹戝偝傟傑偡丅偦偺寢壥丄LFN傪桳岠偵偟偨FatFs儌僕儏乕儖偼丄AVR傪娷傓杦偳偺8價僢僩丒儅僀僐儞偵僀儞僾儕儊儞僩偝傟傞偙偲偑偱偒傑偣傫丅<small>偙傟偼挿偄娫巹偑LFN傪僀儞僾儕儊儞僩偡傞偙偲偵嫽枴傪帩偭偰偙側偐偭偨棟桼偱偡丅</small></p>
<p>拲: FAT僼傽僀儖丒僔僗僥儉忋偺LFN婡擻偼儅僀僋儘僜僼僩幮偺摿嫋偱偡丅彜梡惢昳偱偦傟傪桳岠偵偡傞偲偒偼丄嵟廔巇岦抧偵傛偭偰偼儔僀僙儞僗偑昁梫偐傕抦傟傑偣傫丅</p>
</div>

<div class="para">
<h3>儕僄儞僩儔儞僔乕</h3>
<p>堎側傞儃儕儏乕儉(榑棟僪儔僀僽)偵懳偡傞僼傽僀儖憖嶌偼丄儕僄儞僩儔儞僩愝掕偵傛傜偢忢偵摨帪暯峴偵摦嶌偱偒傑偡丅摨偠儃儕儏乕儉偵懳偡傞儕僄儞僩儔儞僔乕偼<tt>_FS_REENTRANT</tt>僆僾僔儑儞偱桳岠偵偝傟傞偙偲偑偱偒傑偡丅偙偺応崌丄OS埶懚偺摨婜僆僽僕僃僋僩憖嶌娭悢 ff_cre_syncobj, ff_del_syncobj, ff_req_grant 偲 ff_rel_grant 傕傑偨僾儘僕僃僋僩偵捛壛偝傟側偗傟偽側傝傑偣傫丅僒儞僾儖丒僐乕僪偲夝愢偼<tt>syncobj.c</tt>偵偁傝傑偡丅</p>
<p>懠偺僞僗僋偑偦偺儃儕儏乕儉傪巊梡拞偵僼傽僀儖娭悢偑屇傃弌偝傟傞偲丄偦偺傾僋僙僗偼偦偺僞僗僋偑僼傽僀儖娭悢傪敳偗傞傑偱僽儘僢僋偝傟傑偡丅傕偟丄懸偪帪娫偑<tt>_TIMEOUT</tt>偱巜掕偝傟偨婜娫傪墇偡偲丄偦偺娭悢偼<tt>FR_TIMEOUT</tt>偱傾儃乕僩偟傑偡丅偄偔偮偐偺RTOS偱偼僞僀儉傾僂僩婡擻偼僒億乕僩偝傟側偄偐傕抦傟傑偣傫丅</p>
<p>傂偲偮偺椺奜偑f_mount偲f_mkfs娭悢偵偁傝傑偡丅偙傟傜偺娭悢偼摨偠儃儕儏乕儉偵懳偟偰儕僄儞僩儔儞僩偱偼偁傝傑偣傫丅偙傟傜偺娭悢傪巊梡偡傞偲偒偼丄懠偺僗儗僢僪偼娭楢偡傞僼傽僀儖傪暵偠丄偦偺儃儕儏乕儉傊偺傾僋僙僗傪旔偗側偗傟偽側傝傑偣傫丅</p>
<p>拲: 偙偺僙僋僔儑儞偼FatFs儌僕儏乕儖偦傟帺懱偺儕僄儞僩儔儞僔乕偵偮偄偰愢柧偟偰偄傑偡丅僨傿僗僋I/O儌僕儏乕儖偺儕僄儞僩儔儞僔乕偵娭偟偰偼壗偺慜採傕偁傝傑偣傫丅</p>
</div>

<div class="para">
<h3>懡廳僼傽僀儖丒傾僋僙僗</h3>
<p>FatFs儌僕儏乕儖偱偼懡廳傾僋僙僗婡擻偼僒億乕僩偝傟傑偣傫丅僼傽僀儖偵懳偡傞懡廳傾僋僙僗偼丄偦偺傾僋僙僗丒儌乕僪偵傛偭偰惂尷偝傟傑偡丅堦偮偺僼傽僀儖偵懳偡傞懡廳僆乕僾儞偼丄偦傟傜偑慡偰儕乕僪丒儌乕僪偺偲偒嫋壜偝傟傑偡丅彂偒崬傒儌乕僪傪娷傓懡廳僆乕僾儞丄傑偨奐偐傟偰偄傞僼傽僀儖偵懳偡傞儕僱乕儉傗徚嫀傪峴偭偰偼側傝傑偣傫丅偝傕側偄偲丄偦偺儃儕儏乕儉偺FAT峔憿偑攋夡偝傟傞壜擻惈偑偁傝傑偡丅</p>
</div>

<div class="para">
<h3>岠棪揑側僼傽僀儖丒傾僋僙僗</h3>
<p>彫婯柾側慻崬僔僗僥儉偱偺僼傽僀儖偺撉傒彂偒偵偍偗傞岠棪偺椙偄傾僋僙僗偺偨傔丄傾僾儕働乕僔儑儞丒僾儘僌儔儅偼FatFs儌僕儏乕儖偺拞偱偳偺傛偆側張棟偑峴傢傟偰偄傞偐峫椂偡傋偒偱偡丅僨傿僗僋忋偺僨乕僞偼f_read娭悢偵傛傝師偺僔乕働儞僗偱揮憲偝傟傑偡丅</p>
<p>恾1. 僙僋僞丒儈僗傾儔僀儞僪丒儕乕僪 (僔儑乕僩)<br>
<img src="../img/f1.png" width="490" height="73" alt="fig.1">
</p>
<p>恾2. 僙僋僞丒儈僗傾儔僀儞僪丒儕乕僪 (儘儞僌)<br>
<img src="../img/f2.png" width="490" height="140" alt="fig.2">
</p>
<p>恾3. 僙僋僞丒傾儔僀儞僪丒儕乕僪<br>
<img src="../img/f3.png" width="490" height="119" alt="fig.3">
</p>
<p>僼傽僀儖I/O僶僢僼傽偼僙僋僞偺堦晹偺僨乕僞傪撉傒彂偒偡傞偨傔偺僙僋僞丒僶僢僼傽傪堄枴偟傑偡丅僙僋僞丒僶僢僼傽偼丄偦傟偧傟偺僼傽僀儖丒僆僽僕僃僋僩撪偺僾儔僀儀乕僩丒僙僋僞丒僶僢僼傽傑偨偼僼傽僀儖丒僔僗僥儉丒僆僽僕僃僋僩撪偺嫟桳僙僋僞丒僶僢僼傽偺偳偪傜偐偱偡丅僶僢僼傽峔惉僆僾僔儑儞偺<tt>_FS_TINY</tt>偼丄僨乕僞揮憲偵偳偪傜傪巊偆偐傪寛掕偟傑偡丅僞僀僯乕丒僶僢僼傽(1)偑慖戰偝傟傞偲僨乕僞丒儊儌儕偺徚旓偼偦傟偧傟偺僼傽僀儖丒僆僽僕僃僋僩偱512僶僀僩尭彮偝傟傑偡丅偙偺応崌丄FatFs儌僕儏乕儖偼僼傽僀儖丒僨乕僞偺揮憲偲FAT/僨傿儗僋僩儕丒傾僋僙僗偵僼傽僀儖丒僔僗僥儉丒僆僽僕僃僋僩撪偺僙僋僞丒僶僢僼傽偩偗傪巊梡偟傑偡丅僞僀僯乕丒僶僢僼傽偺寚揰偼丄僙僋僞丒僶僢僼傽偵僉儍僢僔儏偝傟偨FAT僨乕僞偑僼傽僀儖丒僨乕僞偺揮憲偵傛傝幐傢傟丄僋儔僗僞嫬奅偺枅偵儕儘乕僪偝傟側偗傟偽側傜側偄偙偲偱偡丅偱傕丄埆偔側偄惈擻偲彮側偄儊儌儕徚旓偺帇揰偐傜懡偔偺傾僾儕働乕僔儑儞偵揔偡傞偱偟傚偆丅</p>
<p>恾1偼僙僋僞偺堦晹偺僨乕僞偑僼傽僀儖I/O僶僢僼傽傪宱桼偱揮憲偝傟傞偙偲傪帵偟傑偡丅恾2偵帵偝傟傞挿偄僨乕僞偺揮憲偱偼丄揮憲僨乕僞偺拞娫偺1僙僋僞傑偨偼偦傟埲忋偺僙僋僞偵傑偨偑傞揮憲僨乕僞偑傾僾儕働乕僔儑儞丒僶僢僼傽偵捈愙揮憲偝傟偰偄傑偡丅恾3偼揮憲僨乕僞慡懱偑僙僋僞嫬奅偵傾儔僀儊儞僩偝傟偰偄傞応崌傪帵偟偰偄傑偡丅偙偺応崌丄僼傽僀儖I/O僶僢僼傽偼巊梡偝傟傑偣傫丅捈愙揮憲偵偍偄偰偼嵟戝偺斖埻偺僙僋僞偑disk_read娭悢偱堦搙偵撉傒崬傑傟傑偡偑丄僋儔僗僞嫬奅傪墇偊傞儅儖僠丒僙僋僞揮憲偼偦傟偑椬愙偱偁偭偰傕峴傢傟傑偣傫丅</p>
<p>偙偺傛偆偵丄僙僋僞偵傾儔僀儊儞僩偟偨僼傽僀儖偺撉傒彂偒傊偺攝椂偼僶僢僼傽宱桼偺僨乕僞揮憲傪旔偗丄撉傒彂偒惈擻偼夵慞偝傟傞偱偟傚偆丅偦偺岠壥偵壛偊丄僞僀僯乕峔惉偱僉儍僢僔儏偝傟偨FAT僨乕僞偑僼傽僀儖丒僨乕僞偺揮憲偵傛傝僼儔僢僔儏偝傟偢丄旕僞僀僯乕峔惉偲摨偠惈擻傪彫偝側儊儌儕丒僼僢僩僾儕儞僩偱払惉偱偒傑偡丅</p>
</div>

<div class="para">
<h3>僋儕僠僇儖丒僙僋僔儑儞</h3>
<p>僨傿僗僋忋偺FAT峔憿傪憖嶌偟偰偄傞搑拞偱丄掆揹丄晄惓側儊僨傿傾偺庢傝奜偟丄夞暅晄擻側僨乕僞丒僄儔乕摍偺忈奞偑敪惗偡傞偲丄張棟偑拞搑敿抂側忬懺偱拞抐偝傟丄偦偺寢壥偲偟偰FAT峔憿偑攋夡偝傟傞壜擻惈偑偁傝傑偡丅師偵FatFs儌僕儏乕儖偵偍偗傞僋儕僠僇儖丒僙僋僔儑儞偲丄偦偺娫偺忈奞偵傛傝婲偒偆傞僄儔乕偺忬懺傪帵偟傑偡丅</p>
<div class="lset">
恾4. 挿偄僋儕僠僇儖丒僙僋僔儑儞<br>
<img src="../img/f4.png" width="320" height="436" alt="fig.4">
</div>
<div class="lset">
恾5. 嵟彫壔偟偨僋儕僠僇儖丒僙僋僔儑儞<br>
<img src="../img/f5.png" width="320" height="436" alt="fig.5">
</div>
<br class="clr">
<p>愒偱帵偟偨僙僋僔儑儞傪幚峴拞偵忈奞偑敪惗偟偨応崌丄僋儘僗丒儕儞僋偑敪惗偟偰憖嶌懳徾偺僼傽僀儖丒僨傿儗僋僩儕偑幐傢傟傞壜擻惈偑偁傝傑偡丅墿怓偱帵偟偨僙僋僔儑儞傪幚峴拞偵忈奞偑敪惗偟偨応崌丄偮偓偺偆偪偄偢傟偐傑偨偼暋悢偺寢壥偑惗偠傞壜擻惈偑偁傝傑偡丅</p>
<ul>
<li>彂偒姺偊拞偺僼傽僀儖偺撪梕偑攋夡偝傟傞丅</li>
<li>捛婰拞偺僼傽僀儖偑僆乕僾儞慜偺忬懺偵栠傞丅</li>
<li>怴婯偵嶌惉偝傟偨僼傽僀儖偑徚偊傞丅</li>
<li>怴婯傑偨偼忋彂偒偱嶌惉偝傟偨僼傽僀儖偺挿偝偑僛儘偵側偭偰巆傞丅</li>
<li>儘僗僩僠僃乕儞偺敪惗偵傛傝僨傿僗僋偺棙梡岠棪偑埆壔偡傞丅</li>
</ul>
<p>偄偢傟傕彂偒崬傒拞傗憖嶌懳徾偱側偄僼傽僀儖偵偼塭嬁偼偁傝傑偣傫丅偙傟傜偺僋儕僠僇儖丒僙僋僔儑儞偼丄僼傽僀儖傪彂偒崬傒儌乕僪偱奐偄偰偄傞帪娫傪嵟彫尷偵偡傞偐丄f_sync()傪揔媂巊梡偡傞偙偲偱恾5偺傛偆偵儕僗僋傪嵟彫壔偡傞偙偲偑偱偒傑偡丅</p>
</div>

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