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- <title>FatFs - disk_write</title>
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- <div class="para">
- <h2>disk_write</h2>
- <p>The disk_write writes sector(s) to the disk.</p>
- <pre>
- DRESULT disk_write (
- BYTE <em>Drive</em>, /* Physical drive number */
- const BYTE* <em>Buffer</em>, /* Pointer to the write data */
- DWORD <em>SectorNumber</em>, /* Sector number to write */
- BYTE <em>SectorCount</em> /* Number of sectors to write */
- );
- </pre>
- </div>
- <div class="para">
- <h4>Parameters</h4>
- <dl class="par">
- <dt>Drive</dt>
- <dd>Specifies the physical drive number.</dd>
- <dt>Buffer</dt>
- <dd>Pointer to the data to be written.</dd>
- <dt>SectorNumber</dd>
- <dd>Specifies the start sector number in logical block address (LBA).</dd>
- <dt>SectorCount</dt>
- <dd>Specifies the number of sectors to write. The value can be 1 to 255.</dd>
- </dl>
- </div>
- <div class="para">
- <h4>Return Values</h4>
- <dl class="ret">
- <dt>RES_OK (0)</dt>
- <dd>The function succeeded.</dd>
- <dt>RES_ERROR</dt>
- <dd>Any hard error occured during the write operation and could not recover it.</dd>
- <dt>RES_WRPRT</dt>
- <dd>The disk is write protected.</dd>
- <dt>RES_PARERR</dt>
- <dd>Invalid parameter.</dd>
- <dt>RES_NOTRDY</dt>
- <dd>The disk drive has not been initialized.</dd>
- </dl>
- </div>
- <div class="para">
- <h4>Description</h4>
- <p>This function is not required in read only configuration.</p>
- </div>
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