URL
https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [FileSystem/] [FatFs-0.7e/] [doc/] [en/] [sfatfs.html] - Rev 637
Go to most recent revision | Compare with Previous | Blame | View Log
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta http-equiv="Content-Style-Type" content="text/css">
<link rel="up" title="FatFs" href="../00index_e.html">
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
<title>FatFs - FATFS</title>
</head>
<body>
<div class="para">
<h2>FATFS</h2>
<p>The <tt>FATFS</tt> structure holds dynamic work area of individual logical drives. It is given by application program and registerd/unregisterd to the FatFs module with f_mount function. Following members are in standard configuration. There is no member that can be changed from the application program.</p>
<pre>
typedef struct _FATFS_ {
BYTE fs_type; /* FAT sub type */
BYTE drive; /* Physical drive number */
BYTE csize; /* Number of sectors per cluster */
BYTE n_fats; /* Number of FAT copies */
BYTE wflag; /* win[] dirty flag (1:must be written back) */
BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
WORD id; /* File system mount ID */
WORD n_rootdir; /* Number of root directory entries (0 on FAT32) */
#if _FS_REENTRANT
_SYNC_t sobj; /* Identifier of sync object */
#endif
#if _MAX_SS != 512
WORD s_size; /* Sector size */
#endif
#if !_FS_READONLY
DWORD last_clust; /* Last allocated cluster */
DWORD free_clust; /* Number of free clusters */
DWORD fsi_sector; /* fsinfo sector */
#endif
#if _FS_RPATH
DWORD cdir; /* Current directory (0:root)*/
#endif
DWORD sects_fat; /* Sectors per fat */
DWORD max_clust; /* Maximum cluster# + 1. Number of clusters is max_clust - 2 */
DWORD fatbase; /* FAT start sector */
DWORD dirbase; /* Root directory start sector (Cluster# on FAT32) */
DWORD database; /* Data start sector */
DWORD winsect; /* Current sector appearing in the win[] */
BYTE win[_MAX_SS];/* Disk access window for Directory/FAT */
} FATFS;
</pre>
</div>
<p class="foot"><a href="../00index_e.html">Return</a></p>
</body>
</html>
Go to most recent revision | Compare with Previous | Blame | View Log