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<p>Access FAT16 and FAT32 partitions on raw file devices.
<a href="class_fat_partition.html#details">More...</a></p>
<p><code>#include <FatPartition.h></code></p>
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Inheritance diagram for FatPartition:</div>
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<area shape="rect" id="node2" href="class_fat_volume.html" title="Integration class for the FatLib library. " alt="" coords="40,80,125,107"/>
<area shape="rect" id="node3" href="class_sd_base.html" title="SdBase\< FatVolume \>" alt="" coords="5,155,160,181"/>
<area shape="rect" id="node4" href="class_sd_fat.html" title="SD file system class for FAT volumes. " alt="" coords="54,229,111,256"/>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a1c3ab374b425c27bb6b6ddd55752c056"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a1c3ab374b425c27bb6b6ddd55752c056">bytesPerCluster</a> ()</td></tr>
<tr class="separator:a1c3ab374b425c27bb6b6ddd55752c056"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aaf43a09e71689c257f4b189ee307db4f"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#aaf43a09e71689c257f4b189ee307db4f">bytesPerClusterShift</a> ()</td></tr>
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<tr class="memitem:a1eba03c763bab44263735488435731f8"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a1eba03c763bab44263735488435731f8">bytesPerSector</a> ()</td></tr>
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<tr class="memitem:a4e513ab3fcfb95583092793116aa4df5"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a4e513ab3fcfb95583092793116aa4df5">bytesPerSectorShift</a> ()</td></tr>
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<tr class="memitem:abf74c1e3c714b396e6271aee304c2448"><td class="memItemLeft" align="right" valign="top"><a class="el" href="unioncache__t.html">cache_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#abf74c1e3c714b396e6271aee304c2448">cacheClear</a> ()</td></tr>
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<tr class="memitem:a291cd8c14e9457fedaf0e43d7060eaab"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a291cd8c14e9457fedaf0e43d7060eaab">clusterCount</a> () const </td></tr>
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<tr class="memitem:a31f50a4d995e9c97e2be0ff8ff4ad1af"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a31f50a4d995e9c97e2be0ff8ff4ad1af">dataStartSector</a> () const </td></tr>
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<tr class="memitem:a0af1e91a311180119b4a2c85d7e6e87e"><td class="memItemLeft" align="right" valign="top">int8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a0af1e91a311180119b4a2c85d7e6e87e">dbgFat</a> (uint32_t n, uint32_t *v)</td></tr>
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<tr class="memitem:a56b37c3230818b9ae8e0a25c01a370a3"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a56b37c3230818b9ae8e0a25c01a370a3">fatCount</a> ()</td></tr>
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<tr class="memitem:a2c94db084d89355da7695d82ee612f72"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a2c94db084d89355da7695d82ee612f72">FatPartition</a> ()</td></tr>
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<tr class="memitem:aa254dd5e61caa79a0701aa2729a67011"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#aa254dd5e61caa79a0701aa2729a67011">fatStartSector</a> () const </td></tr>
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<tr class="memitem:ac4b56ad1ac1435eb47600583d11de506"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#ac4b56ad1ac1435eb47600583d11de506">fatType</a> () const </td></tr>
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<tr class="memitem:ac9689f1e11f59acc5f1b21ed9bb71174"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#ac9689f1e11f59acc5f1b21ed9bb71174">freeClusterCount</a> ()</td></tr>
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<tr class="memitem:a11e099fac5b3b84c958954cde24d34e6"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a11e099fac5b3b84c958954cde24d34e6">init</a> (<a class="el" href="class_sd_spi_card.html">BlockDevice</a> *dev, uint8_t part)</td></tr>
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<tr class="memitem:a476646a4ea4b7979de9dcf4383d86cf2"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a476646a4ea4b7979de9dcf4383d86cf2">rootDirEntryCount</a> () const </td></tr>
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<tr class="memitem:a05ad9a364556e34faf45567e30170ca7"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a05ad9a364556e34faf45567e30170ca7">rootDirStart</a> () const </td></tr>
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<tr class="memitem:a6b970fa2e06de1a826b09e251dc3119b"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a6b970fa2e06de1a826b09e251dc3119b">sectorMask</a> ()</td></tr>
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<tr class="memitem:ac411a6260e90d0b9f6be9a6c5b2e9a33"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#ac411a6260e90d0b9f6be9a6c5b2e9a33">sectorsPerCluster</a> () const </td></tr>
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<tr class="memitem:ad526bb0c8ab512e6764df6e172d9318a"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#ad526bb0c8ab512e6764df6e172d9318a">sectorsPerClusterShift</a> () const </td></tr>
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<tr class="memitem:af35e4137fc584408582b8d510d1a2ca7"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#af35e4137fc584408582b8d510d1a2ca7">sectorsPerFat</a> () const </td></tr>
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<tr class="memitem:a884165ebfe93474ddb028e6ddb1ca42c"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a884165ebfe93474ddb028e6ddb1ca42c">volumeSectorCount</a> () const </td></tr>
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<tr class="memitem:a7c51c04d63ea39d07e7e8da3b0f4ae08"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_partition.html#a7c51c04d63ea39d07e7e8da3b0f4ae08">wipe</a> (print_t *pr=<a class="el" href="_sys_call_8h.html#ab979d9d4b4923f7c54d6caa6e1a61936">nullptr</a>)</td></tr>
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Friends</h2></td></tr>
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class </td><td class="memItemRight" valign="bottom"><b>FatCache</b></td></tr>
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class </td><td class="memItemRight" valign="bottom"><b>FatFile</b></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Access FAT16 and FAT32 partitions on raw file devices. </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">FatPartition::FatPartition </td>
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<p>Create an instance of <a class="el" href="class_fat_partition.html" title="Access FAT16 and FAT32 partitions on raw file devices. ">FatPartition</a> </p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<dl class="section return"><dt>Returns</dt><dd>Number of bytes in a cluster. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>The shift count required to multiply by bytesPerCluster. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>Number of bytes per sector. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>The shift count required to multiply by bytesPerCluster. </dd></dl>
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<td class="memname"><a class="el" href="unioncache__t.html">cache_t</a>* FatPartition::cacheClear </td>
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<p>Clear the cache and returns a pointer to the cache. Not for normal apps. </p><dl class="section return"><dt>Returns</dt><dd>A pointer to the cache buffer or zero if an error occurs. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>The total number of clusters in the volume. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>The logical sector number for the start of file data. </dd></dl>
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<td class="memname">int8_t FatPartition::dbgFat </td>
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<p>Debug access to FAT table</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">n</td><td>cluster number. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">v</td><td>value of entry </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure </dd></dl>
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<td class="memname">uint8_t FatPartition::fatCount </td>
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<dl class="section return"><dt>Returns</dt><dd>The number of <a class="el" href="class_file.html" title="FAT16/FAT32 file with Arduino Stream. ">File</a> Allocation Tables. </dd></dl>
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<td class="memname">uint32_t FatPartition::fatStartSector </td>
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<dl class="section return"><dt>Returns</dt><dd>The logical sector number for the start of the first FAT. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>The FAT type of the volume. Values are 12, 16 or 32. </dd></dl>
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<p>Volume free space in clusters.</p>
<dl class="section return"><dt>Returns</dt><dd>Count of free clusters for success or -1 if an error occurs. </dd></dl>
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<td class="paramname"><em>dev</em>, </td>
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<td class="paramtype">uint8_t </td>
<td class="paramname"><em>part</em> </td>
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<p>Initialize a FAT partition.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">dev</td><td>BlockDevice for this partition. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">part</td><td>The partition to be used. Legal values for <em>part</em> are 1-4 to use the corresponding partition on a device formatted with a MBR, Master Boot Record, or zero if the device is formatted as a super floppy with the FAT boot sector in sector zero.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
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<td class="memname">uint16_t FatPartition::rootDirEntryCount </td>
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<td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>The number of entries in the root directory for FAT16 volumes. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>The logical sector number for the start of the root directory on FAT16 volumes or the first cluster number on FAT32 volumes. </dd></dl>
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<td class="paramname"></td><td>)</td>
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<dl class="section return"><dt>Returns</dt><dd>Mask for sector offset. </dd></dl>
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<td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>The volume's cluster size in sectors. </dd></dl>
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<td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>The shift count required to multiply by sectorsPerCluster. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>The number of sectors in one FAT. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>The number of sectors in the volume </dd></dl>
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<td class="memname">bool FatPartition::wipe </td>
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<td class="paramtype">print_t * </td>
<td class="paramname"><em>pr</em> = <code><a class="el" href="_sys_call_8h.html#ab979d9d4b4923f7c54d6caa6e1a61936">nullptr</a></code></td><td>)</td>
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<p>Wipe all data from the volume. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>print stream for status dots. </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success else false. </dd></dl>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li>ArduinoSdFs/libraries/SdFs/src/FatLib/<a class="el" href="_fat_partition_8h.html">FatPartition.h</a></li>
<li>ArduinoSdFs/libraries/SdFs/src/FatLib/FatPartition.cpp</li>
</ul>
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