help :(

Dependencies:   FFT

Committer:
dimitryjl23
Date:
Fri Dec 04 18:01:22 2020 +0000
Revision:
11:951bbb0385aa
Parent:
0:d6c9b09b4042
Final :)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
annieluo2 0:d6c9b09b4042 1 /*---------------------------------------------------------------------------/
annieluo2 0:d6c9b09b4042 2 / FatFs - FAT file system module configuration file R0.11a (C)ChaN, 2015
annieluo2 0:d6c9b09b4042 3 /---------------------------------------------------------------------------*/
annieluo2 0:d6c9b09b4042 4
annieluo2 0:d6c9b09b4042 5 #define _FFCONF 64180 /* Revision ID */
annieluo2 0:d6c9b09b4042 6
annieluo2 0:d6c9b09b4042 7 #define FFS_DBG 0
annieluo2 0:d6c9b09b4042 8
annieluo2 0:d6c9b09b4042 9 /*---------------------------------------------------------------------------/
annieluo2 0:d6c9b09b4042 10 / Function Configurations
annieluo2 0:d6c9b09b4042 11 /---------------------------------------------------------------------------*/
annieluo2 0:d6c9b09b4042 12
annieluo2 0:d6c9b09b4042 13 #define _FS_READONLY 0
annieluo2 0:d6c9b09b4042 14 /* This option switches read-only configuration. (0:Read/Write or 1:Read-only)
annieluo2 0:d6c9b09b4042 15 / Read-only configuration removes writing API functions, f_write(), f_sync(),
annieluo2 0:d6c9b09b4042 16 / f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree()
annieluo2 0:d6c9b09b4042 17 / and optional writing functions as well. */
annieluo2 0:d6c9b09b4042 18
annieluo2 0:d6c9b09b4042 19
annieluo2 0:d6c9b09b4042 20 #define _FS_MINIMIZE 0
annieluo2 0:d6c9b09b4042 21 /* This option defines minimization level to remove some basic API functions.
annieluo2 0:d6c9b09b4042 22 /
annieluo2 0:d6c9b09b4042 23 / 0: All basic functions are enabled.
annieluo2 0:d6c9b09b4042 24 / 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_chmod(), f_utime(),
annieluo2 0:d6c9b09b4042 25 / f_truncate() and f_rename() function are removed.
annieluo2 0:d6c9b09b4042 26 / 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1.
annieluo2 0:d6c9b09b4042 27 / 3: f_lseek() function is removed in addition to 2. */
annieluo2 0:d6c9b09b4042 28
annieluo2 0:d6c9b09b4042 29
annieluo2 0:d6c9b09b4042 30 #define _USE_STRFUNC 0
annieluo2 0:d6c9b09b4042 31 /* This option switches string functions, f_gets(), f_putc(), f_puts() and
annieluo2 0:d6c9b09b4042 32 / f_printf().
annieluo2 0:d6c9b09b4042 33 /
annieluo2 0:d6c9b09b4042 34 / 0: Disable string functions.
annieluo2 0:d6c9b09b4042 35 / 1: Enable without LF-CRLF conversion.
annieluo2 0:d6c9b09b4042 36 / 2: Enable with LF-CRLF conversion. */
annieluo2 0:d6c9b09b4042 37
annieluo2 0:d6c9b09b4042 38
annieluo2 0:d6c9b09b4042 39 #define _USE_FIND 0
annieluo2 0:d6c9b09b4042 40 /* This option switches filtered directory read feature and related functions,
annieluo2 0:d6c9b09b4042 41 / f_findfirst() and f_findnext(). (0:Disable or 1:Enable) */
annieluo2 0:d6c9b09b4042 42
annieluo2 0:d6c9b09b4042 43
annieluo2 0:d6c9b09b4042 44 #define _USE_MKFS 1
annieluo2 0:d6c9b09b4042 45 /* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
annieluo2 0:d6c9b09b4042 46
annieluo2 0:d6c9b09b4042 47
annieluo2 0:d6c9b09b4042 48 #define _USE_FASTSEEK 0
annieluo2 0:d6c9b09b4042 49 /* This option switches fast seek feature. (0:Disable or 1:Enable) */
annieluo2 0:d6c9b09b4042 50
annieluo2 0:d6c9b09b4042 51
annieluo2 0:d6c9b09b4042 52 #define _USE_LABEL 0
annieluo2 0:d6c9b09b4042 53 /* This option switches volume label functions, f_getlabel() and f_setlabel().
annieluo2 0:d6c9b09b4042 54 / (0:Disable or 1:Enable) */
annieluo2 0:d6c9b09b4042 55
annieluo2 0:d6c9b09b4042 56
annieluo2 0:d6c9b09b4042 57 #define _USE_FORWARD 0
annieluo2 0:d6c9b09b4042 58 /* This option switches f_forward() function. (0:Disable or 1:Enable)
annieluo2 0:d6c9b09b4042 59 / To enable it, also _FS_TINY need to be set to 1. */
annieluo2 0:d6c9b09b4042 60
annieluo2 0:d6c9b09b4042 61
annieluo2 0:d6c9b09b4042 62 /*---------------------------------------------------------------------------/
annieluo2 0:d6c9b09b4042 63 / Locale and Namespace Configurations
annieluo2 0:d6c9b09b4042 64 /---------------------------------------------------------------------------*/
annieluo2 0:d6c9b09b4042 65
annieluo2 0:d6c9b09b4042 66 #define _CODE_PAGE 850
annieluo2 0:d6c9b09b4042 67 /* This option specifies the OEM code page to be used on the target system.
annieluo2 0:d6c9b09b4042 68 / Incorrect setting of the code page can cause a file open failure.
annieluo2 0:d6c9b09b4042 69 /
annieluo2 0:d6c9b09b4042 70 / 1 - ASCII (No extended character. Non-LFN cfg. only)
annieluo2 0:d6c9b09b4042 71 / 437 - U.S.
annieluo2 0:d6c9b09b4042 72 / 720 - Arabic
annieluo2 0:d6c9b09b4042 73 / 737 - Greek
annieluo2 0:d6c9b09b4042 74 / 771 - KBL
annieluo2 0:d6c9b09b4042 75 / 775 - Baltic
annieluo2 0:d6c9b09b4042 76 / 850 - Latin 1
annieluo2 0:d6c9b09b4042 77 / 852 - Latin 2
annieluo2 0:d6c9b09b4042 78 / 855 - Cyrillic
annieluo2 0:d6c9b09b4042 79 / 857 - Turkish
annieluo2 0:d6c9b09b4042 80 / 860 - Portuguese
annieluo2 0:d6c9b09b4042 81 / 861 - Icelandic
annieluo2 0:d6c9b09b4042 82 / 862 - Hebrew
annieluo2 0:d6c9b09b4042 83 / 863 - Canadian French
annieluo2 0:d6c9b09b4042 84 / 864 - Arabic
annieluo2 0:d6c9b09b4042 85 / 865 - Nordic
annieluo2 0:d6c9b09b4042 86 / 866 - Russian
annieluo2 0:d6c9b09b4042 87 / 869 - Greek 2
annieluo2 0:d6c9b09b4042 88 / 932 - Japanese (DBCS)
annieluo2 0:d6c9b09b4042 89 / 936 - Simplified Chinese (DBCS)
annieluo2 0:d6c9b09b4042 90 / 949 - Korean (DBCS)
annieluo2 0:d6c9b09b4042 91 / 950 - Traditional Chinese (DBCS)
annieluo2 0:d6c9b09b4042 92 */
annieluo2 0:d6c9b09b4042 93
annieluo2 0:d6c9b09b4042 94
annieluo2 0:d6c9b09b4042 95 #define _USE_LFN 1
annieluo2 0:d6c9b09b4042 96 #define _MAX_LFN 255
annieluo2 0:d6c9b09b4042 97 /* The _USE_LFN option switches the LFN feature.
annieluo2 0:d6c9b09b4042 98 /
annieluo2 0:d6c9b09b4042 99 / 0: Disable LFN feature. _MAX_LFN has no effect.
annieluo2 0:d6c9b09b4042 100 / 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe.
annieluo2 0:d6c9b09b4042 101 / 2: Enable LFN with dynamic working buffer on the STACK.
annieluo2 0:d6c9b09b4042 102 / 3: Enable LFN with dynamic working buffer on the HEAP.
annieluo2 0:d6c9b09b4042 103 /
annieluo2 0:d6c9b09b4042 104 / When enable the LFN feature, Unicode handling functions (option/unicode.c) must
annieluo2 0:d6c9b09b4042 105 / be added to the project. The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes.
annieluo2 0:d6c9b09b4042 106 / When use stack for the working buffer, take care on stack overflow. When use heap
annieluo2 0:d6c9b09b4042 107 / memory for the working buffer, memory management functions, ff_memalloc() and
annieluo2 0:d6c9b09b4042 108 / ff_memfree(), must be added to the project. */
annieluo2 0:d6c9b09b4042 109
annieluo2 0:d6c9b09b4042 110
annieluo2 0:d6c9b09b4042 111 #define _LFN_UNICODE 0
annieluo2 0:d6c9b09b4042 112 /* This option switches character encoding on the API. (0:ANSI/OEM or 1:Unicode)
annieluo2 0:d6c9b09b4042 113 / To use Unicode string for the path name, enable LFN feature and set _LFN_UNICODE
annieluo2 0:d6c9b09b4042 114 / to 1. This option also affects behavior of string I/O functions. */
annieluo2 0:d6c9b09b4042 115
annieluo2 0:d6c9b09b4042 116
annieluo2 0:d6c9b09b4042 117 #define _STRF_ENCODE 3
annieluo2 0:d6c9b09b4042 118 /* When _LFN_UNICODE is 1, this option selects the character encoding on the file to
annieluo2 0:d6c9b09b4042 119 / be read/written via string I/O functions, f_gets(), f_putc(), f_puts and f_printf().
annieluo2 0:d6c9b09b4042 120 /
annieluo2 0:d6c9b09b4042 121 / 0: ANSI/OEM
annieluo2 0:d6c9b09b4042 122 / 1: UTF-16LE
annieluo2 0:d6c9b09b4042 123 / 2: UTF-16BE
annieluo2 0:d6c9b09b4042 124 / 3: UTF-8
annieluo2 0:d6c9b09b4042 125 /
annieluo2 0:d6c9b09b4042 126 / When _LFN_UNICODE is 0, this option has no effect. */
annieluo2 0:d6c9b09b4042 127
annieluo2 0:d6c9b09b4042 128
annieluo2 0:d6c9b09b4042 129 #define _FS_RPATH 0
annieluo2 0:d6c9b09b4042 130 /* This option configures relative path feature.
annieluo2 0:d6c9b09b4042 131 /
annieluo2 0:d6c9b09b4042 132 / 0: Disable relative path feature and remove related functions.
annieluo2 0:d6c9b09b4042 133 / 1: Enable relative path feature. f_chdir() and f_chdrive() are available.
annieluo2 0:d6c9b09b4042 134 / 2: f_getcwd() function is available in addition to 1.
annieluo2 0:d6c9b09b4042 135 /
annieluo2 0:d6c9b09b4042 136 / Note that directory items read via f_readdir() are affected by this option. */
annieluo2 0:d6c9b09b4042 137
annieluo2 0:d6c9b09b4042 138
annieluo2 0:d6c9b09b4042 139 /*---------------------------------------------------------------------------/
annieluo2 0:d6c9b09b4042 140 / Drive/Volume Configurations
annieluo2 0:d6c9b09b4042 141 /---------------------------------------------------------------------------*/
annieluo2 0:d6c9b09b4042 142
annieluo2 0:d6c9b09b4042 143 #define _VOLUMES 1
annieluo2 0:d6c9b09b4042 144 /* Number of volumes (logical drives) to be used. */
annieluo2 0:d6c9b09b4042 145
annieluo2 0:d6c9b09b4042 146
annieluo2 0:d6c9b09b4042 147 #define _STR_VOLUME_ID 0
annieluo2 0:d6c9b09b4042 148 #define _VOLUME_STRS "RAM","NAND","CF","SD1","SD2","USB1","USB2","USB3"
annieluo2 0:d6c9b09b4042 149 /* _STR_VOLUME_ID option switches string volume ID feature.
annieluo2 0:d6c9b09b4042 150 / When _STR_VOLUME_ID is set to 1, also pre-defined strings can be used as drive
annieluo2 0:d6c9b09b4042 151 / number in the path name. _VOLUME_STRS defines the drive ID strings for each
annieluo2 0:d6c9b09b4042 152 / logical drives. Number of items must be equal to _VOLUMES. Valid characters for
annieluo2 0:d6c9b09b4042 153 / the drive ID strings are: A-Z and 0-9. */
annieluo2 0:d6c9b09b4042 154
annieluo2 0:d6c9b09b4042 155
annieluo2 0:d6c9b09b4042 156 #define _MULTI_PARTITION 0
annieluo2 0:d6c9b09b4042 157 /* This option switches multi-partition feature. By default (0), each logical drive
annieluo2 0:d6c9b09b4042 158 / number is bound to the same physical drive number and only an FAT volume found on
annieluo2 0:d6c9b09b4042 159 / the physical drive will be mounted. When multi-partition feature is enabled (1),
annieluo2 0:d6c9b09b4042 160 / each logical drive number is bound to arbitrary physical drive and partition
annieluo2 0:d6c9b09b4042 161 / listed in the VolToPart[]. Also f_fdisk() funciton will be available. */
annieluo2 0:d6c9b09b4042 162
annieluo2 0:d6c9b09b4042 163
annieluo2 0:d6c9b09b4042 164 #define _MIN_SS 512
annieluo2 0:d6c9b09b4042 165 #define _MAX_SS 512
annieluo2 0:d6c9b09b4042 166 /* These options configure the range of sector size to be supported. (512, 1024,
annieluo2 0:d6c9b09b4042 167 / 2048 or 4096) Always set both 512 for most systems, all type of memory cards and
annieluo2 0:d6c9b09b4042 168 / harddisk. But a larger value may be required for on-board flash memory and some
annieluo2 0:d6c9b09b4042 169 / type of optical media. When _MAX_SS is larger than _MIN_SS, FatFs is configured
annieluo2 0:d6c9b09b4042 170 / to variable sector size and GET_SECTOR_SIZE command must be implemented to the
annieluo2 0:d6c9b09b4042 171 / disk_ioctl() function. */
annieluo2 0:d6c9b09b4042 172
annieluo2 0:d6c9b09b4042 173
annieluo2 0:d6c9b09b4042 174 #define _USE_TRIM 0
annieluo2 0:d6c9b09b4042 175 /* This option switches ATA-TRIM feature. (0:Disable or 1:Enable)
annieluo2 0:d6c9b09b4042 176 / To enable Trim feature, also CTRL_TRIM command should be implemented to the
annieluo2 0:d6c9b09b4042 177 / disk_ioctl() function. */
annieluo2 0:d6c9b09b4042 178
annieluo2 0:d6c9b09b4042 179
annieluo2 0:d6c9b09b4042 180 #define _FS_NOFSINFO 0
annieluo2 0:d6c9b09b4042 181 /* If you need to know correct free space on the FAT32 volume, set bit 0 of this
annieluo2 0:d6c9b09b4042 182 / option, and f_getfree() function at first time after volume mount will force
annieluo2 0:d6c9b09b4042 183 / a full FAT scan. Bit 1 controls the use of last allocated cluster number.
annieluo2 0:d6c9b09b4042 184 /
annieluo2 0:d6c9b09b4042 185 / bit0=0: Use free cluster count in the FSINFO if available.
annieluo2 0:d6c9b09b4042 186 / bit0=1: Do not trust free cluster count in the FSINFO.
annieluo2 0:d6c9b09b4042 187 / bit1=0: Use last allocated cluster number in the FSINFO if available.
annieluo2 0:d6c9b09b4042 188 / bit1=1: Do not trust last allocated cluster number in the FSINFO.
annieluo2 0:d6c9b09b4042 189 */
annieluo2 0:d6c9b09b4042 190
annieluo2 0:d6c9b09b4042 191
annieluo2 0:d6c9b09b4042 192
annieluo2 0:d6c9b09b4042 193 /*---------------------------------------------------------------------------/
annieluo2 0:d6c9b09b4042 194 / System Configurations
annieluo2 0:d6c9b09b4042 195 /---------------------------------------------------------------------------*/
annieluo2 0:d6c9b09b4042 196
annieluo2 0:d6c9b09b4042 197 #define _FS_TINY 0
annieluo2 0:d6c9b09b4042 198 /* This option switches tiny buffer configuration. (0:Normal or 1:Tiny)
annieluo2 0:d6c9b09b4042 199 / At the tiny configuration, size of the file object (FIL) is reduced _MAX_SS
annieluo2 0:d6c9b09b4042 200 / bytes. Instead of private sector buffer eliminated from the file object,
annieluo2 0:d6c9b09b4042 201 / common sector buffer in the file system object (FATFS) is used for the file
annieluo2 0:d6c9b09b4042 202 / data transfer. */
annieluo2 0:d6c9b09b4042 203
annieluo2 0:d6c9b09b4042 204
annieluo2 0:d6c9b09b4042 205 #define _FS_NORTC 0
annieluo2 0:d6c9b09b4042 206 #define _NORTC_MON 1
annieluo2 0:d6c9b09b4042 207 #define _NORTC_MDAY 1
annieluo2 0:d6c9b09b4042 208 #define _NORTC_YEAR 2015
annieluo2 0:d6c9b09b4042 209 /* The _FS_NORTC option switches timestamp feature. If the system does not have
annieluo2 0:d6c9b09b4042 210 / an RTC function or valid timestamp is not needed, set _FS_NORTC to 1 to disable
annieluo2 0:d6c9b09b4042 211 / the timestamp feature. All objects modified by FatFs will have a fixed timestamp
annieluo2 0:d6c9b09b4042 212 / defined by _NORTC_MON, _NORTC_MDAY and _NORTC_YEAR.
annieluo2 0:d6c9b09b4042 213 / When timestamp feature is enabled (_FS_NORTC == 0), get_fattime() function need
annieluo2 0:d6c9b09b4042 214 / to be added to the project to read current time form RTC. _NORTC_MON,
annieluo2 0:d6c9b09b4042 215 / _NORTC_MDAY and _NORTC_YEAR have no effect.
annieluo2 0:d6c9b09b4042 216 / These options have no effect at read-only configuration (_FS_READONLY == 1). */
annieluo2 0:d6c9b09b4042 217
annieluo2 0:d6c9b09b4042 218
annieluo2 0:d6c9b09b4042 219 #define _FS_LOCK 0
annieluo2 0:d6c9b09b4042 220 /* The _FS_LOCK option switches file lock feature to control duplicated file open
annieluo2 0:d6c9b09b4042 221 / and illegal operation to open objects. This option must be 0 when _FS_READONLY
annieluo2 0:d6c9b09b4042 222 / is 1.
annieluo2 0:d6c9b09b4042 223 /
annieluo2 0:d6c9b09b4042 224 / 0: Disable file lock feature. To avoid volume corruption, application program
annieluo2 0:d6c9b09b4042 225 / should avoid illegal open, remove and rename to the open objects.
annieluo2 0:d6c9b09b4042 226 / >0: Enable file lock feature. The value defines how many files/sub-directories
annieluo2 0:d6c9b09b4042 227 / can be opened simultaneously under file lock control. Note that the file
annieluo2 0:d6c9b09b4042 228 / lock feature is independent of re-entrancy. */
annieluo2 0:d6c9b09b4042 229
annieluo2 0:d6c9b09b4042 230
annieluo2 0:d6c9b09b4042 231 #define _FS_REENTRANT 0
annieluo2 0:d6c9b09b4042 232 #define _FS_TIMEOUT 1000
annieluo2 0:d6c9b09b4042 233 #define _SYNC_t HANDLE
annieluo2 0:d6c9b09b4042 234 /* The _FS_REENTRANT option switches the re-entrancy (thread safe) of the FatFs
annieluo2 0:d6c9b09b4042 235 / module itself. Note that regardless of this option, file access to different
annieluo2 0:d6c9b09b4042 236 / volume is always re-entrant and volume control functions, f_mount(), f_mkfs()
annieluo2 0:d6c9b09b4042 237 / and f_fdisk() function, are always not re-entrant. Only file/directory access
annieluo2 0:d6c9b09b4042 238 / to the same volume is under control of this feature.
annieluo2 0:d6c9b09b4042 239 /
annieluo2 0:d6c9b09b4042 240 / 0: Disable re-entrancy. _FS_TIMEOUT and _SYNC_t have no effect.
annieluo2 0:d6c9b09b4042 241 / 1: Enable re-entrancy. Also user provided synchronization handlers,
annieluo2 0:d6c9b09b4042 242 / ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj()
annieluo2 0:d6c9b09b4042 243 / function, must be added to the project. Samples are available in
annieluo2 0:d6c9b09b4042 244 / option/syscall.c.
annieluo2 0:d6c9b09b4042 245 /
annieluo2 0:d6c9b09b4042 246 / The _FS_TIMEOUT defines timeout period in unit of time tick.
annieluo2 0:d6c9b09b4042 247 / The _SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*,
annieluo2 0:d6c9b09b4042 248 / SemaphoreHandle_t and etc.. A header file for O/S definitions needs to be
annieluo2 0:d6c9b09b4042 249 / included somewhere in the scope of ff.c. */
annieluo2 0:d6c9b09b4042 250
annieluo2 0:d6c9b09b4042 251
annieluo2 0:d6c9b09b4042 252 #define _WORD_ACCESS 0
annieluo2 0:d6c9b09b4042 253 /* The _WORD_ACCESS option is an only platform dependent option. It defines
annieluo2 0:d6c9b09b4042 254 / which access method is used to the word data on the FAT volume.
annieluo2 0:d6c9b09b4042 255 /
annieluo2 0:d6c9b09b4042 256 / 0: Byte-by-byte access. Always compatible with all platforms.
annieluo2 0:d6c9b09b4042 257 / 1: Word access. Do not choose this unless under both the following conditions.
annieluo2 0:d6c9b09b4042 258 /
annieluo2 0:d6c9b09b4042 259 / * Address misaligned memory access is always allowed to ALL instructions.
annieluo2 0:d6c9b09b4042 260 / * Byte order on the memory is little-endian.
annieluo2 0:d6c9b09b4042 261 /
annieluo2 0:d6c9b09b4042 262 / If it is the case, _WORD_ACCESS can also be set to 1 to reduce code size.
annieluo2 0:d6c9b09b4042 263 / Following table shows allowable settings of some type of processors.
annieluo2 0:d6c9b09b4042 264 /
annieluo2 0:d6c9b09b4042 265 / ARM7TDMI 0 *2 ColdFire 0 *1 V850E 0 *2
annieluo2 0:d6c9b09b4042 266 / Cortex-M3 0 *3 Z80 0/1 V850ES 0/1
annieluo2 0:d6c9b09b4042 267 / Cortex-M0 0 *2 x86 0/1 TLCS-870 0/1
annieluo2 0:d6c9b09b4042 268 / AVR 0/1 RX600(LE) 0/1 TLCS-900 0/1
annieluo2 0:d6c9b09b4042 269 / AVR32 0 *1 RL78 0 *2 R32C 0 *2
annieluo2 0:d6c9b09b4042 270 / PIC18 0/1 SH-2 0 *1 M16C 0/1
annieluo2 0:d6c9b09b4042 271 / PIC24 0 *2 H8S 0 *1 MSP430 0 *2
annieluo2 0:d6c9b09b4042 272 / PIC32 0 *1 H8/300H 0 *1 8051 0/1
annieluo2 0:d6c9b09b4042 273 /
annieluo2 0:d6c9b09b4042 274 / *1:Big-endian.
annieluo2 0:d6c9b09b4042 275 / *2:Unaligned memory access is not supported.
annieluo2 0:d6c9b09b4042 276 / *3:Some compilers generate LDM/STM for mem_cpy function.
annieluo2 0:d6c9b09b4042 277 */
annieluo2 0:d6c9b09b4042 278
annieluo2 0:d6c9b09b4042 279 #define FLUSH_ON_NEW_CLUSTER 0 /* Sync the file on every new cluster */
annieluo2 0:d6c9b09b4042 280 #define FLUSH_ON_NEW_SECTOR 1 /* Sync the file on every new sector */
annieluo2 0:d6c9b09b4042 281 /* Only one of these two defines needs to be set to 1. If both are set to 0
annieluo2 0:d6c9b09b4042 282 the file is only sync when closed.
annieluo2 0:d6c9b09b4042 283 Clusters are group of sectors (eg: 8 sectors). Flushing on new cluster means
annieluo2 0:d6c9b09b4042 284 it would be less often than flushing on new sector. Sectors are generally
annieluo2 0:d6c9b09b4042 285 512 Bytes long. */