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<h2>FIL</h2>
<p>The FIL structure (file object) holds state of a file. It is created by f_open function and discarded by f_close function. There is no member that can be changed by the application program.</p>
<h4>FatFs</h4>
<pre>
typedef struct _FIL {
WORD id; /* Owner file system mount ID (inverted) */
BYTE flag; /* File status flags */
BYTE csect; /* Sector address in the cluster */
FATFS* fs; /* Pointer to the owner file system object */
DWORD fptr; /* File R/W pointer */
DWORD fsize; /* File size */
DWORD org_clust; /* File start cluster */
DWORD curr_clust; /* Current cluster */
DWORD curr_sect; /* Current sector */
DWORD dir_sect; /* Sector containing the directory entry */
BYTE* dir_ptr; /* Ponter to the directory entry in the window */
BYTE buffer[512]; /* File R/W buffer */
} FIL;
</pre>
<h4>Tiny-FatFs</h4>
<pre>
typedef struct _FIL {
WORD id; /* Owner file system mount ID (inverted) */
BYTE flag; /* File status flags */
BYTE csect; /* Sector address in the cluster */
FATFS* fs; /* Pointer to owner file system */
DWORD fptr; /* File R/W pointer */
DWORD fsize; /* File size */
CLUST org_clust; /* File start cluster */
CLUST curr_clust; /* Current cluster */
DWORD curr_sect; /* Current sector */
DWORD dir_sect; /* Sector containing the directory entry */
BYTE* dir_ptr; /* Ponter to the directory entry in the window */
} FIL;
</pre>
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