ffconf.h

00001 /*---------------------------------------------------------------------------/
00002 /  FatFs - FAT file system module configuration file  R0.08a (C)ChaN, 2010
00003 /----------------------------------------------------------------------------/
00004 /
00005 / CAUTION! Do not forget to make clean the project after any changes to
00006 / the configuration options.
00007 /
00008 /----------------------------------------------------------------------------*/
00009 #ifndef _FFCONF
00010 #define _FFCONF 8255    /* Revision ID */
00011 
00012 
00013 /*---------------------------------------------------------------------------/
00014 / Function and Buffer Configurations
00015 /----------------------------------------------------------------------------*/
00016 
00017 #define    _FS_TINY    0        /* 0:Normal or 1:Tiny */
00018 /* When _FS_TINY is set to 1, FatFs uses the sector buffer in the file system
00019 /  object instead of the sector buffer in the individual file object for file
00020 /  data transfer. This reduces memory consumption 512 bytes each file object. */
00021 
00022 
00023 #define _FS_READONLY    0    /* 0:Read/Write or 1:Read only */
00024 /* Setting _FS_READONLY to 1 defines read only configuration. This removes
00025 /  writing functions, f_write, f_sync, f_unlink, f_mkdir, f_chmod, f_rename,
00026 /  f_truncate and useless f_getfree. */
00027 
00028 
00029 #define _FS_MINIMIZE    0    /* 0 to 3 */
00030 /* The _FS_MINIMIZE option defines minimization level to remove some functions.
00031 /
00032 /   0: Full function.
00033 /   1: f_stat, f_getfree, f_unlink, f_mkdir, f_chmod, f_truncate and f_rename
00034 /      are removed.
00035 /   2: f_opendir and f_readdir are removed in addition to 1.
00036 /   3: f_lseek is removed in addition to 2. */
00037 
00038 
00039 #define    _USE_STRFUNC    1    /* 0:Disable or 1/2:Enable */
00040 /* To enable string functions, set _USE_STRFUNC to 1 or 2. */
00041 
00042 
00043 #define    _USE_MKFS    0        /* 0:Disable or 1:Enable */
00044 /* To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */
00045 
00046 
00047 #define    _USE_FORWARD    0    /* 0:Disable or 1:Enable */
00048 /* To enable f_forward function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */
00049 
00050 
00051 #define    _USE_FASTSEEK    0    /* 0:Disable or 1:Enable */
00052 /* To enable fast seek feature, set _USE_FASTSEEK to 1. */
00053 
00054 
00055 
00056 /*---------------------------------------------------------------------------/
00057 / Locale and Namespace Configurations
00058 /----------------------------------------------------------------------------*/
00059 
00060 #define _CODE_PAGE    437
00061 /* The _CODE_PAGE specifies the OEM code page to be used on the target system.
00062 /  Incorrect setting of the code page can cause a file open failure.
00063 /
00064 /   932  - Japanese Shift-JIS (DBCS, OEM, Windows)
00065 /   936  - Simplified Chinese GBK (DBCS, OEM, Windows)
00066 /   949  - Korean (DBCS, OEM, Windows)
00067 /   950  - Traditional Chinese Big5 (DBCS, OEM, Windows)
00068 /   1250 - Central Europe (Windows)
00069 /   1251 - Cyrillic (Windows)
00070 /   1252 - Latin 1 (Windows)
00071 /   1253 - Greek (Windows)
00072 /   1254 - Turkish (Windows)
00073 /   1255 - Hebrew (Windows)
00074 /   1256 - Arabic (Windows)
00075 /   1257 - Baltic (Windows)
00076 /   1258 - Vietnam (OEM, Windows)
00077 /   437  - U.S. (OEM)
00078 /   720  - Arabic (OEM)
00079 /   737  - Greek (OEM)
00080 /   775  - Baltic (OEM)
00081 /   850  - Multilingual Latin 1 (OEM)
00082 /   858  - Multilingual Latin 1 + Euro (OEM)
00083 /   852  - Latin 2 (OEM)
00084 /   855  - Cyrillic (OEM)
00085 /   866  - Russian (OEM)
00086 /   857  - Turkish (OEM)
00087 /   862  - Hebrew (OEM)
00088 /   874  - Thai (OEM, Windows)
00089 /    1    - ASCII only (Valid for non LFN cfg.)
00090 */
00091 
00092 
00093 #define    _USE_LFN    1        /* 0 to 3 */
00094 #define    _MAX_LFN    255        /* Maximum LFN length to handle (12 to 255) */
00095 /* The _USE_LFN option switches the LFN support.
00096 /
00097 /   0: Disable LFN feature. _MAX_LFN and _LFN_UNICODE have no effect.
00098 /   1: Enable LFN with static working buffer on the BSS. Always NOT reentrant.
00099 /   2: Enable LFN with dynamic working buffer on the STACK.
00100 /   3: Enable LFN with dynamic working buffer on the HEAP.
00101 /
00102 /  The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. To enable LFN,
00103 /  Unicode handling functions ff_convert() and ff_wtoupper() must be added
00104 /  to the project. When enable to use heap, memory control functions
00105 /  ff_memalloc() and ff_memfree() must be added to the project. */
00106 
00107 
00108 #define    _LFN_UNICODE    0    /* 0:ANSI/OEM or 1:Unicode */
00109 /* To switch the character code set on FatFs API to Unicode,
00110 /  enable LFN feature and set _LFN_UNICODE to 1. */
00111 
00112 
00113 #define _FS_RPATH    0        /* 0 to 2 */
00114 /* The _FS_RPATH option configures relative path feature.
00115 /
00116 /   0: Disable relative path feature and remove related functions.
00117 /   1: Enable relative path. f_chdrive() and f_chdir() are available.
00118 /   2: f_getcwd() is available in addition to 1.
00119 /
00120 /  Note that output of the f_readdir fnction is affected by this option. */
00121 
00122 
00123 
00124 /*---------------------------------------------------------------------------/
00125 / Physical Drive Configurations
00126 /----------------------------------------------------------------------------*/
00127 
00128 #define _VOLUMES    1
00129 /* Number of volumes (logical drives) to be used. */
00130 
00131 
00132 #define    _MAX_SS        512        /* 512, 1024, 2048 or 4096 */
00133 /* Maximum sector size to be handled.
00134 /  Always set 512 for memory card and hard disk but a larger value may be
00135 /  required for floppy disk (512/1024) and optical disk (512/2048).
00136 /  When _MAX_SS is larger than 512, GET_SECTOR_SIZE command must be implememted
00137 /  to the disk_ioctl function. */
00138 
00139 
00140 #define    _MULTI_PARTITION    0    /* 0:Single partition or 1:Multiple partition */
00141 /* When set to 0, each volume is bound to the same physical drive number and
00142 / it can mount only first primaly partition. When it is set to 1, each volume
00143 / is tied to the partitions listed in VolToPart[]. */
00144 
00145 
00146 #define    _USE_ERASE    0    /* 0:Disable or 1:Enable */
00147 /* To enable sector erase feature, set _USE_ERASE to 1. */
00148 
00149 
00150 
00151 /*---------------------------------------------------------------------------/
00152 / System Configurations
00153 /----------------------------------------------------------------------------*/
00154 
00155 #define _WORD_ACCESS    0    /* 0 or 1 */
00156 /* Set 0 first and it is always compatible with all platforms. The _WORD_ACCESS
00157 /  option defines which access method is used to the word data on the FAT volume.
00158 /
00159 /   0: Byte-by-byte access.
00160 /   1: Word access. Do not choose this unless following condition is met.
00161 /
00162 /  When the byte order on the memory is big-endian or address miss-aligned word
00163 /  access results incorrect behavior, the _WORD_ACCESS must be set to 0.
00164 /  If it is not the case, the value can also be set to 1 to improve the
00165 /  performance and code size. */
00166 
00167 
00168 /* Include a header file here to define sync object types on the O/S */
00169 /* #include <windows.h>, <ucos_ii.h.h>, <semphr.h> or ohters. */
00170 
00171 #define _FS_REENTRANT    0        /* 0:Disable or 1:Enable */
00172 #define _FS_TIMEOUT        1000    /* Timeout period in unit of time ticks */
00173 #define    _SYNC_t            HANDLE    /* O/S dependent type of sync object. e.g. HANDLE, OS_EVENT*, ID and etc.. */
00174 
00175 /* The _FS_REENTRANT option switches the reentrancy of the FatFs module.
00176 /
00177 /   0: Disable reentrancy. _SYNC_t and _FS_TIMEOUT have no effect.
00178 /   1: Enable reentrancy. Also user provided synchronization handlers,
00179 /      ff_req_grant, ff_rel_grant, ff_del_syncobj and ff_cre_syncobj
00180 /      function must be added to the project. */
00181 
00182 
00183 #define    _FS_SHARE    0    /* 0:Disable or >=1:Enable */
00184 /* To enable file shareing feature, set _FS_SHARE to 1 or greater. The value
00185    defines how many files can be opened simultaneously. */
00186 
00187 
00188 #endif /* _FFCONFIG */