(DA) Internet of Things and Smart Electronics- ELE3006M2122 / Mbed 2 deprecated Final_Project_V19_DLeaming_25574043

Final tidy of code following installation of new sensor, more comments added prior to submission

Dependencies:   mbed

SD_Card/FATFileSystem/ChaN/ffconf.h@18:fc63b51a0302, 2022-02-04 (annotated)

Committer:
legstar85
Date:
Fri Feb 04 09:20:18 2022 +0000
Revision:
18:fc63b51a0302
Parent:
14:3e9991fe64e5 
Final tidy of code following installation of new sensor, more comments added prior to submission

Who changed what in which revision?

UserRevisionLine numberNew contents of line
legstar85 14:3e9991fe64e5 1 /*---------------------------------------------------------------------------/
legstar85 14:3e9991fe64e5 2 / FatFs - FAT file system module configuration file R0.11a (C)ChaN, 2015
legstar85 14:3e9991fe64e5 3 /---------------------------------------------------------------------------*/
legstar85 14:3e9991fe64e5 4
legstar85 14:3e9991fe64e5 5 #define _FFCONF 64180 /* Revision ID */
legstar85 14:3e9991fe64e5 6
legstar85 14:3e9991fe64e5 7 #define FFS_DBG 0
legstar85 14:3e9991fe64e5 8
legstar85 14:3e9991fe64e5 9 /*---------------------------------------------------------------------------/
legstar85 14:3e9991fe64e5 10 / Function Configurations
legstar85 14:3e9991fe64e5 11 /---------------------------------------------------------------------------*/
legstar85 14:3e9991fe64e5 12
legstar85 14:3e9991fe64e5 13 #define _FS_READONLY 0
legstar85 14:3e9991fe64e5 14 /* This option switches read-only configuration. (0:Read/Write or 1:Read-only)
legstar85 14:3e9991fe64e5 15 / Read-only configuration removes writing API functions, f_write(), f_sync(),
legstar85 14:3e9991fe64e5 16 / f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree()
legstar85 14:3e9991fe64e5 17 / and optional writing functions as well. */
legstar85 14:3e9991fe64e5 18
legstar85 14:3e9991fe64e5 19
legstar85 14:3e9991fe64e5 20 #define _FS_MINIMIZE 0
legstar85 14:3e9991fe64e5 21 /* This option defines minimization level to remove some basic API functions.
legstar85 14:3e9991fe64e5 22 /
legstar85 14:3e9991fe64e5 23 / 0: All basic functions are enabled.
legstar85 14:3e9991fe64e5 24 / 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_chmod(), f_utime(),
legstar85 14:3e9991fe64e5 25 / f_truncate() and f_rename() function are removed.
legstar85 14:3e9991fe64e5 26 / 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1.
legstar85 14:3e9991fe64e5 27 / 3: f_lseek() function is removed in addition to 2. */
legstar85 14:3e9991fe64e5 28
legstar85 14:3e9991fe64e5 29
legstar85 14:3e9991fe64e5 30 #define _USE_STRFUNC 0
legstar85 14:3e9991fe64e5 31 /* This option switches string functions, f_gets(), f_putc(), f_puts() and
legstar85 14:3e9991fe64e5 32 / f_printf().
legstar85 14:3e9991fe64e5 33 /
legstar85 14:3e9991fe64e5 34 / 0: Disable string functions.
legstar85 14:3e9991fe64e5 35 / 1: Enable without LF-CRLF conversion.
legstar85 14:3e9991fe64e5 36 / 2: Enable with LF-CRLF conversion. */
legstar85 14:3e9991fe64e5 37
legstar85 14:3e9991fe64e5 38
legstar85 14:3e9991fe64e5 39 #define _USE_FIND 0
legstar85 14:3e9991fe64e5 40 /* This option switches filtered directory read feature and related functions,
legstar85 14:3e9991fe64e5 41 / f_findfirst() and f_findnext(). (0:Disable or 1:Enable) */
legstar85 14:3e9991fe64e5 42
legstar85 14:3e9991fe64e5 43
legstar85 14:3e9991fe64e5 44 #define _USE_MKFS 1
legstar85 14:3e9991fe64e5 45 /* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
legstar85 14:3e9991fe64e5 46
legstar85 14:3e9991fe64e5 47
legstar85 14:3e9991fe64e5 48 #define _USE_FASTSEEK 0
legstar85 14:3e9991fe64e5 49 /* This option switches fast seek feature. (0:Disable or 1:Enable) */
legstar85 14:3e9991fe64e5 50
legstar85 14:3e9991fe64e5 51
legstar85 14:3e9991fe64e5 52 #define _USE_LABEL 0
legstar85 14:3e9991fe64e5 53 /* This option switches volume label functions, f_getlabel() and f_setlabel().
legstar85 14:3e9991fe64e5 54 / (0:Disable or 1:Enable) */
legstar85 14:3e9991fe64e5 55
legstar85 14:3e9991fe64e5 56
legstar85 14:3e9991fe64e5 57 #define _USE_FORWARD 0
legstar85 14:3e9991fe64e5 58 /* This option switches f_forward() function. (0:Disable or 1:Enable)
legstar85 14:3e9991fe64e5 59 / To enable it, also _FS_TINY need to be set to 1. */
legstar85 14:3e9991fe64e5 60
legstar85 14:3e9991fe64e5 61
legstar85 14:3e9991fe64e5 62 /*---------------------------------------------------------------------------/
legstar85 14:3e9991fe64e5 63 / Locale and Namespace Configurations
legstar85 14:3e9991fe64e5 64 /---------------------------------------------------------------------------*/
legstar85 14:3e9991fe64e5 65
legstar85 14:3e9991fe64e5 66 #define _CODE_PAGE 850
legstar85 14:3e9991fe64e5 67 /* This option specifies the OEM code page to be used on the target system.
legstar85 14:3e9991fe64e5 68 / Incorrect setting of the code page can cause a file open failure.
legstar85 14:3e9991fe64e5 69 /
legstar85 14:3e9991fe64e5 70 / 1 - ASCII (No extended character. Non-LFN cfg. only)
legstar85 14:3e9991fe64e5 71 / 437 - U.S.
legstar85 14:3e9991fe64e5 72 / 720 - Arabic
legstar85 14:3e9991fe64e5 73 / 737 - Greek
legstar85 14:3e9991fe64e5 74 / 771 - KBL
legstar85 14:3e9991fe64e5 75 / 775 - Baltic
legstar85 14:3e9991fe64e5 76 / 850 - Latin 1
legstar85 14:3e9991fe64e5 77 / 852 - Latin 2
legstar85 14:3e9991fe64e5 78 / 855 - Cyrillic
legstar85 14:3e9991fe64e5 79 / 857 - Turkish
legstar85 14:3e9991fe64e5 80 / 860 - Portuguese
legstar85 14:3e9991fe64e5 81 / 861 - Icelandic
legstar85 14:3e9991fe64e5 82 / 862 - Hebrew
legstar85 14:3e9991fe64e5 83 / 863 - Canadian French
legstar85 14:3e9991fe64e5 84 / 864 - Arabic
legstar85 14:3e9991fe64e5 85 / 865 - Nordic
legstar85 14:3e9991fe64e5 86 / 866 - Russian
legstar85 14:3e9991fe64e5 87 / 869 - Greek 2
legstar85 14:3e9991fe64e5 88 / 932 - Japanese (DBCS)
legstar85 14:3e9991fe64e5 89 / 936 - Simplified Chinese (DBCS)
legstar85 14:3e9991fe64e5 90 / 949 - Korean (DBCS)
legstar85 14:3e9991fe64e5 91 / 950 - Traditional Chinese (DBCS)
legstar85 14:3e9991fe64e5 92 */
legstar85 14:3e9991fe64e5 93
legstar85 14:3e9991fe64e5 94
legstar85 14:3e9991fe64e5 95 #define _USE_LFN 1
legstar85 14:3e9991fe64e5 96 #define _MAX_LFN 255
legstar85 14:3e9991fe64e5 97 /* The _USE_LFN option switches the LFN feature.
legstar85 14:3e9991fe64e5 98 /
legstar85 14:3e9991fe64e5 99 / 0: Disable LFN feature. _MAX_LFN has no effect.
legstar85 14:3e9991fe64e5 100 / 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe.
legstar85 14:3e9991fe64e5 101 / 2: Enable LFN with dynamic working buffer on the STACK.
legstar85 14:3e9991fe64e5 102 / 3: Enable LFN with dynamic working buffer on the HEAP.
legstar85 14:3e9991fe64e5 103 /
legstar85 14:3e9991fe64e5 104 / When enable the LFN feature, Unicode handling functions (option/unicode.c) must
legstar85 14:3e9991fe64e5 105 / be added to the project. The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes.
legstar85 14:3e9991fe64e5 106 / When use stack for the working buffer, take care on stack overflow. When use heap
legstar85 14:3e9991fe64e5 107 / memory for the working buffer, memory management functions, ff_memalloc() and
legstar85 14:3e9991fe64e5 108 / ff_memfree(), must be added to the project. */
legstar85 14:3e9991fe64e5 109
legstar85 14:3e9991fe64e5 110
legstar85 14:3e9991fe64e5 111 #define _LFN_UNICODE 0
legstar85 14:3e9991fe64e5 112 /* This option switches character encoding on the API. (0:ANSI/OEM or 1:Unicode)
legstar85 14:3e9991fe64e5 113 / To use Unicode string for the path name, enable LFN feature and set _LFN_UNICODE
legstar85 14:3e9991fe64e5 114 / to 1. This option also affects behavior of string I/O functions. */
legstar85 14:3e9991fe64e5 115
legstar85 14:3e9991fe64e5 116
legstar85 14:3e9991fe64e5 117 #define _STRF_ENCODE 3
legstar85 14:3e9991fe64e5 118 /* When _LFN_UNICODE is 1, this option selects the character encoding on the file to
legstar85 14:3e9991fe64e5 119 / be read/written via string I/O functions, f_gets(), f_putc(), f_puts and f_printf().
legstar85 14:3e9991fe64e5 120 /
legstar85 14:3e9991fe64e5 121 / 0: ANSI/OEM
legstar85 14:3e9991fe64e5 122 / 1: UTF-16LE
legstar85 14:3e9991fe64e5 123 / 2: UTF-16BE
legstar85 14:3e9991fe64e5 124 / 3: UTF-8
legstar85 14:3e9991fe64e5 125 /
legstar85 14:3e9991fe64e5 126 / When _LFN_UNICODE is 0, this option has no effect. */
legstar85 14:3e9991fe64e5 127
legstar85 14:3e9991fe64e5 128
legstar85 14:3e9991fe64e5 129 #define _FS_RPATH 0
legstar85 14:3e9991fe64e5 130 /* This option configures relative path feature.
legstar85 14:3e9991fe64e5 131 /
legstar85 14:3e9991fe64e5 132 / 0: Disable relative path feature and remove related functions.
legstar85 14:3e9991fe64e5 133 / 1: Enable relative path feature. f_chdir() and f_chdrive() are available.
legstar85 14:3e9991fe64e5 134 / 2: f_getcwd() function is available in addition to 1.
legstar85 14:3e9991fe64e5 135 /
legstar85 14:3e9991fe64e5 136 / Note that directory items read via f_readdir() are affected by this option. */
legstar85 14:3e9991fe64e5 137
legstar85 14:3e9991fe64e5 138
legstar85 14:3e9991fe64e5 139 /*---------------------------------------------------------------------------/
legstar85 14:3e9991fe64e5 140 / Drive/Volume Configurations
legstar85 14:3e9991fe64e5 141 /---------------------------------------------------------------------------*/
legstar85 14:3e9991fe64e5 142
legstar85 14:3e9991fe64e5 143 #define _VOLUMES 1
legstar85 14:3e9991fe64e5 144 /* Number of volumes (logical drives) to be used. */
legstar85 14:3e9991fe64e5 145
legstar85 14:3e9991fe64e5 146
legstar85 14:3e9991fe64e5 147 #define _STR_VOLUME_ID 0
legstar85 14:3e9991fe64e5 148 #define _VOLUME_STRS "RAM","NAND","CF","SD1","SD2","USB1","USB2","USB3"
legstar85 14:3e9991fe64e5 149 /* _STR_VOLUME_ID option switches string volume ID feature.
legstar85 14:3e9991fe64e5 150 / When _STR_VOLUME_ID is set to 1, also pre-defined strings can be used as drive
legstar85 14:3e9991fe64e5 151 / number in the path name. _VOLUME_STRS defines the drive ID strings for each
legstar85 14:3e9991fe64e5 152 / logical drives. Number of items must be equal to _VOLUMES. Valid characters for
legstar85 14:3e9991fe64e5 153 / the drive ID strings are: A-Z and 0-9. */
legstar85 14:3e9991fe64e5 154
legstar85 14:3e9991fe64e5 155
legstar85 14:3e9991fe64e5 156 #define _MULTI_PARTITION 0
legstar85 14:3e9991fe64e5 157 /* This option switches multi-partition feature. By default (0), each logical drive
legstar85 14:3e9991fe64e5 158 / number is bound to the same physical drive number and only an FAT volume found on
legstar85 14:3e9991fe64e5 159 / the physical drive will be mounted. When multi-partition feature is enabled (1),
legstar85 14:3e9991fe64e5 160 / each logical drive number is bound to arbitrary physical drive and partition
legstar85 14:3e9991fe64e5 161 / listed in the VolToPart[]. Also f_fdisk() funciton will be available. */
legstar85 14:3e9991fe64e5 162
legstar85 14:3e9991fe64e5 163
legstar85 14:3e9991fe64e5 164 #define _MIN_SS 512
legstar85 14:3e9991fe64e5 165 #define _MAX_SS 512
legstar85 14:3e9991fe64e5 166 /* These options configure the range of sector size to be supported. (512, 1024,
legstar85 14:3e9991fe64e5 167 / 2048 or 4096) Always set both 512 for most systems, all type of memory cards and
legstar85 14:3e9991fe64e5 168 / harddisk. But a larger value may be required for on-board flash memory and some
legstar85 14:3e9991fe64e5 169 / type of optical media. When _MAX_SS is larger than _MIN_SS, FatFs is configured
legstar85 14:3e9991fe64e5 170 / to variable sector size and GET_SECTOR_SIZE command must be implemented to the
legstar85 14:3e9991fe64e5 171 / disk_ioctl() function. */
legstar85 14:3e9991fe64e5 172
legstar85 14:3e9991fe64e5 173
legstar85 14:3e9991fe64e5 174 #define _USE_TRIM 0
legstar85 14:3e9991fe64e5 175 /* This option switches ATA-TRIM feature. (0:Disable or 1:Enable)
legstar85 14:3e9991fe64e5 176 / To enable Trim feature, also CTRL_TRIM command should be implemented to the
legstar85 14:3e9991fe64e5 177 / disk_ioctl() function. */
legstar85 14:3e9991fe64e5 178
legstar85 14:3e9991fe64e5 179
legstar85 14:3e9991fe64e5 180 #define _FS_NOFSINFO 0
legstar85 14:3e9991fe64e5 181 /* If you need to know correct free space on the FAT32 volume, set bit 0 of this
legstar85 14:3e9991fe64e5 182 / option, and f_getfree() function at first time after volume mount will force
legstar85 14:3e9991fe64e5 183 / a full FAT scan. Bit 1 controls the use of last allocated cluster number.
legstar85 14:3e9991fe64e5 184 /
legstar85 14:3e9991fe64e5 185 / bit0=0: Use free cluster count in the FSINFO if available.
legstar85 14:3e9991fe64e5 186 / bit0=1: Do not trust free cluster count in the FSINFO.
legstar85 14:3e9991fe64e5 187 / bit1=0: Use last allocated cluster number in the FSINFO if available.
legstar85 14:3e9991fe64e5 188 / bit1=1: Do not trust last allocated cluster number in the FSINFO.
legstar85 14:3e9991fe64e5 189 */
legstar85 14:3e9991fe64e5 190
legstar85 14:3e9991fe64e5 191
legstar85 14:3e9991fe64e5 192
legstar85 14:3e9991fe64e5 193 /*---------------------------------------------------------------------------/
legstar85 14:3e9991fe64e5 194 / System Configurations
legstar85 14:3e9991fe64e5 195 /---------------------------------------------------------------------------*/
legstar85 14:3e9991fe64e5 196
legstar85 14:3e9991fe64e5 197 #define _FS_TINY 0
legstar85 14:3e9991fe64e5 198 /* This option switches tiny buffer configuration. (0:Normal or 1:Tiny)
legstar85 14:3e9991fe64e5 199 / At the tiny configuration, size of the file object (FIL) is reduced _MAX_SS
legstar85 14:3e9991fe64e5 200 / bytes. Instead of private sector buffer eliminated from the file object,
legstar85 14:3e9991fe64e5 201 / common sector buffer in the file system object (FATFS) is used for the file
legstar85 14:3e9991fe64e5 202 / data transfer. */
legstar85 14:3e9991fe64e5 203
legstar85 14:3e9991fe64e5 204
legstar85 14:3e9991fe64e5 205 #define _FS_NORTC 0
legstar85 14:3e9991fe64e5 206 #define _NORTC_MON 1
legstar85 14:3e9991fe64e5 207 #define _NORTC_MDAY 1
legstar85 14:3e9991fe64e5 208 #define _NORTC_YEAR 2015
legstar85 14:3e9991fe64e5 209 /* The _FS_NORTC option switches timestamp feature. If the system does not have
legstar85 14:3e9991fe64e5 210 / an RTC function or valid timestamp is not needed, set _FS_NORTC to 1 to disable
legstar85 14:3e9991fe64e5 211 / the timestamp feature. All objects modified by FatFs will have a fixed timestamp
legstar85 14:3e9991fe64e5 212 / defined by _NORTC_MON, _NORTC_MDAY and _NORTC_YEAR.
legstar85 14:3e9991fe64e5 213 / When timestamp feature is enabled (_FS_NORTC == 0), get_fattime() function need
legstar85 14:3e9991fe64e5 214 / to be added to the project to read current time form RTC. _NORTC_MON,
legstar85 14:3e9991fe64e5 215 / _NORTC_MDAY and _NORTC_YEAR have no effect.
legstar85 14:3e9991fe64e5 216 / These options have no effect at read-only configuration (_FS_READONLY == 1). */
legstar85 14:3e9991fe64e5 217
legstar85 14:3e9991fe64e5 218
legstar85 14:3e9991fe64e5 219 #define _FS_LOCK 0
legstar85 14:3e9991fe64e5 220 /* The _FS_LOCK option switches file lock feature to control duplicated file open
legstar85 14:3e9991fe64e5 221 / and illegal operation to open objects. This option must be 0 when _FS_READONLY
legstar85 14:3e9991fe64e5 222 / is 1.
legstar85 14:3e9991fe64e5 223 /
legstar85 14:3e9991fe64e5 224 / 0: Disable file lock feature. To avoid volume corruption, application program
legstar85 14:3e9991fe64e5 225 / should avoid illegal open, remove and rename to the open objects.
legstar85 14:3e9991fe64e5 226 / >0: Enable file lock feature. The value defines how many files/sub-directories
legstar85 14:3e9991fe64e5 227 / can be opened simultaneously under file lock control. Note that the file
legstar85 14:3e9991fe64e5 228 / lock feature is independent of re-entrancy. */
legstar85 14:3e9991fe64e5 229
legstar85 14:3e9991fe64e5 230
legstar85 14:3e9991fe64e5 231 #define _FS_REENTRANT 0
legstar85 14:3e9991fe64e5 232 #define _FS_TIMEOUT 1000
legstar85 14:3e9991fe64e5 233 #define _SYNC_t HANDLE
legstar85 14:3e9991fe64e5 234 /* The _FS_REENTRANT option switches the re-entrancy (thread safe) of the FatFs
legstar85 14:3e9991fe64e5 235 / module itself. Note that regardless of this option, file access to different
legstar85 14:3e9991fe64e5 236 / volume is always re-entrant and volume control functions, f_mount(), f_mkfs()
legstar85 14:3e9991fe64e5 237 / and f_fdisk() function, are always not re-entrant. Only file/directory access
legstar85 14:3e9991fe64e5 238 / to the same volume is under control of this feature.
legstar85 14:3e9991fe64e5 239 /
legstar85 14:3e9991fe64e5 240 / 0: Disable re-entrancy. _FS_TIMEOUT and _SYNC_t have no effect.
legstar85 14:3e9991fe64e5 241 / 1: Enable re-entrancy. Also user provided synchronization handlers,
legstar85 14:3e9991fe64e5 242 / ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj()
legstar85 14:3e9991fe64e5 243 / function, must be added to the project. Samples are available in
legstar85 14:3e9991fe64e5 244 / option/syscall.c.
legstar85 14:3e9991fe64e5 245 /
legstar85 14:3e9991fe64e5 246 / The _FS_TIMEOUT defines timeout period in unit of time tick.
legstar85 14:3e9991fe64e5 247 / The _SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*,
legstar85 14:3e9991fe64e5 248 / SemaphoreHandle_t and etc.. A header file for O/S definitions needs to be
legstar85 14:3e9991fe64e5 249 / included somewhere in the scope of ff.c. */
legstar85 14:3e9991fe64e5 250
legstar85 14:3e9991fe64e5 251
legstar85 14:3e9991fe64e5 252 #define _WORD_ACCESS 0
legstar85 14:3e9991fe64e5 253 /* The _WORD_ACCESS option is an only platform dependent option. It defines
legstar85 14:3e9991fe64e5 254 / which access method is used to the word data on the FAT volume.
legstar85 14:3e9991fe64e5 255 /
legstar85 14:3e9991fe64e5 256 / 0: Byte-by-byte access. Always compatible with all platforms.
legstar85 14:3e9991fe64e5 257 / 1: Word access. Do not choose this unless under both the following conditions.
legstar85 14:3e9991fe64e5 258 /
legstar85 14:3e9991fe64e5 259 / * Address misaligned memory access is always allowed to ALL instructions.
legstar85 14:3e9991fe64e5 260 / * Byte order on the memory is little-endian.
legstar85 14:3e9991fe64e5 261 /
legstar85 14:3e9991fe64e5 262 / If it is the case, _WORD_ACCESS can also be set to 1 to reduce code size.
legstar85 14:3e9991fe64e5 263 / Following table shows allowable settings of some type of processors.
legstar85 14:3e9991fe64e5 264 /
legstar85 14:3e9991fe64e5 265 / ARM7TDMI 0 *2 ColdFire 0 *1 V850E 0 *2
legstar85 14:3e9991fe64e5 266 / Cortex-M3 0 *3 Z80 0/1 V850ES 0/1
legstar85 14:3e9991fe64e5 267 / Cortex-M0 0 *2 x86 0/1 TLCS-870 0/1
legstar85 14:3e9991fe64e5 268 / AVR 0/1 RX600(LE) 0/1 TLCS-900 0/1
legstar85 14:3e9991fe64e5 269 / AVR32 0 *1 RL78 0 *2 R32C 0 *2
legstar85 14:3e9991fe64e5 270 / PIC18 0/1 SH-2 0 *1 M16C 0/1
legstar85 14:3e9991fe64e5 271 / PIC24 0 *2 H8S 0 *1 MSP430 0 *2
legstar85 14:3e9991fe64e5 272 / PIC32 0 *1 H8/300H 0 *1 8051 0/1
legstar85 14:3e9991fe64e5 273 /
legstar85 14:3e9991fe64e5 274 / *1:Big-endian.
legstar85 14:3e9991fe64e5 275 / *2:Unaligned memory access is not supported.
legstar85 14:3e9991fe64e5 276 / *3:Some compilers generate LDM/STM for mem_cpy function.
legstar85 14:3e9991fe64e5 277 */
legstar85 14:3e9991fe64e5 278
legstar85 14:3e9991fe64e5 279 #define FLUSH_ON_NEW_CLUSTER 0 /* Sync the file on every new cluster */
legstar85 14:3e9991fe64e5 280 #define FLUSH_ON_NEW_SECTOR 1 /* Sync the file on every new sector */
legstar85 14:3e9991fe64e5 281 /* Only one of these two defines needs to be set to 1. If both are set to 0
legstar85 14:3e9991fe64e5 282 the file is only sync when closed.
legstar85 14:3e9991fe64e5 283 Clusters are group of sectors (eg: 8 sectors). Flushing on new cluster means
legstar85 14:3e9991fe64e5 284 it would be less often than flushing on new sector. Sectors are generally
legstar85 14:3e9991fe64e5 285 512 Bytes long. */
legstar85 14:3e9991fe64e5 286