Tick Tock / Mbed 2 deprecated CANcan

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Dependencies:   SDHCFileSystem mbed

FatFileSystem/ff.h@0:1596b8644523, 2012-11-19 (annotated)

Committer:
TickTock
Date:
Mon Nov 19 04:44:11 2012 +0000
Revision:
0:1596b8644523
Initial revision - just getting hw up and running

Who changed what in which revision?

UserRevisionLine numberNew contents of line
TickTock 0:1596b8644523 1 /*--------------------------------------------------------------------------/
TickTock 0:1596b8644523 2 / FatFs - FAT file system module include file R0.06 (C)ChaN, 2008
TickTock 0:1596b8644523 3 /---------------------------------------------------------------------------/
TickTock 0:1596b8644523 4 / FatFs module is an experimenal project to implement FAT file system to
TickTock 0:1596b8644523 5 / cheap microcontrollers. This is a free software and is opened for education,
TickTock 0:1596b8644523 6 / research and development under license policy of following trems.
TickTock 0:1596b8644523 7 /
TickTock 0:1596b8644523 8 / Copyright (C) 2008, ChaN, all right reserved.
TickTock 0:1596b8644523 9 /
TickTock 0:1596b8644523 10 / * The FatFs module is a free software and there is no warranty.
TickTock 0:1596b8644523 11 / * You can use, modify and/or redistribute it for personal, non-profit or
TickTock 0:1596b8644523 12 / commercial use without any restriction under your responsibility.
TickTock 0:1596b8644523 13 / * Redistributions of source code must retain the above copyright notice.
TickTock 0:1596b8644523 14 /
TickTock 0:1596b8644523 15 /---------------------------------------------------------------------------*/
TickTock 0:1596b8644523 16
TickTock 0:1596b8644523 17 #ifndef _FATFS
TickTock 0:1596b8644523 18
TickTock 0:1596b8644523 19 #define _MCU_ENDIAN 2
TickTock 0:1596b8644523 20 /* The _MCU_ENDIAN defines which access method is used to the FAT structure.
TickTock 0:1596b8644523 21 / 1: Enable word access.
TickTock 0:1596b8644523 22 / 2: Disable word access and use byte-by-byte access instead.
TickTock 0:1596b8644523 23 / When the architectural byte order of the MCU is big-endian and/or address
TickTock 0:1596b8644523 24 / miss-aligned access results incorrect behavior, the _MCU_ENDIAN must be set to 2.
TickTock 0:1596b8644523 25 / If it is not the case, it can also be set to 1 for good code efficiency. */
TickTock 0:1596b8644523 26
TickTock 0:1596b8644523 27 #define _FS_READONLY 0
TickTock 0:1596b8644523 28 /* Setting _FS_READONLY to 1 defines read only configuration. This removes
TickTock 0:1596b8644523 29 / writing functions, f_write, f_sync, f_unlink, f_mkdir, f_chmod, f_rename,
TickTock 0:1596b8644523 30 / f_truncate and useless f_getfree. */
TickTock 0:1596b8644523 31
TickTock 0:1596b8644523 32 #define _FS_MINIMIZE 0
TickTock 0:1596b8644523 33 /* The _FS_MINIMIZE option defines minimization level to remove some functions.
TickTock 0:1596b8644523 34 / 0: Full function.
TickTock 0:1596b8644523 35 / 1: f_stat, f_getfree, f_unlink, f_mkdir, f_chmod, f_truncate and f_rename are removed.
TickTock 0:1596b8644523 36 / 2: f_opendir and f_readdir are removed in addition to level 1.
TickTock 0:1596b8644523 37 / 3: f_lseek is removed in addition to level 2. */
TickTock 0:1596b8644523 38
TickTock 0:1596b8644523 39 #define _USE_STRFUNC 0
TickTock 0:1596b8644523 40 /* To enable string functions, set _USE_STRFUNC to 1 or 2. */
TickTock 0:1596b8644523 41
TickTock 0:1596b8644523 42 #define _USE_MKFS 1
TickTock 0:1596b8644523 43 /* When _USE_MKFS is set to 1 and _FS_READONLY is set to 0, f_mkfs function is
TickTock 0:1596b8644523 44 / enabled. */
TickTock 0:1596b8644523 45
TickTock 0:1596b8644523 46 #define _DRIVES 4
TickTock 0:1596b8644523 47 /* Number of logical drives to be used. This affects the size of internal table. */
TickTock 0:1596b8644523 48
TickTock 0:1596b8644523 49 #define _MULTI_PARTITION 0
TickTock 0:1596b8644523 50 /* When _MULTI_PARTITION is set to 0, each logical drive is bound to same
TickTock 0:1596b8644523 51 / physical drive number and can mount only 1st primaly partition. When it is
TickTock 0:1596b8644523 52 / set to 1, each logical drive can mount a partition listed in Drives[]. */
TickTock 0:1596b8644523 53
TickTock 0:1596b8644523 54 #define _USE_FSINFO 0
TickTock 0:1596b8644523 55 /* To enable FSInfo support on FAT32 volume, set _USE_FSINFO to 1. */
TickTock 0:1596b8644523 56
TickTock 0:1596b8644523 57 #define _USE_SJIS 1
TickTock 0:1596b8644523 58 /* When _USE_SJIS is set to 1, Shift-JIS code transparency is enabled, otherwise
TickTock 0:1596b8644523 59 / only US-ASCII(7bit) code can be accepted as file/directory name. */
TickTock 0:1596b8644523 60
TickTock 0:1596b8644523 61 #define _USE_NTFLAG 1
TickTock 0:1596b8644523 62 /* When _USE_NTFLAG is set to 1, upper/lower case of the file name is preserved.
TickTock 0:1596b8644523 63 / Note that the files are always accessed in case insensitive. */
TickTock 0:1596b8644523 64
TickTock 0:1596b8644523 65
TickTock 0:1596b8644523 66 #include "integer.h"
TickTock 0:1596b8644523 67
TickTock 0:1596b8644523 68 #ifdef __cplusplus
TickTock 0:1596b8644523 69 extern "C" {
TickTock 0:1596b8644523 70 #endif
TickTock 0:1596b8644523 71
TickTock 0:1596b8644523 72 /* Definitions corresponds to multiple sector size (not tested) */
TickTock 0:1596b8644523 73 #define S_MAX_SIZ 512U /* Do not change */
TickTock 0:1596b8644523 74 #if S_MAX_SIZ > 512U
TickTock 0:1596b8644523 75 #define SS(fs) ((fs)->s_size)
TickTock 0:1596b8644523 76 #else
TickTock 0:1596b8644523 77 #define SS(fs) 512U
TickTock 0:1596b8644523 78 #endif
TickTock 0:1596b8644523 79
TickTock 0:1596b8644523 80
TickTock 0:1596b8644523 81 /* File system object structure */
TickTock 0:1596b8644523 82 typedef struct _FATFS {
TickTock 0:1596b8644523 83 WORD id; /* File system mount ID */
TickTock 0:1596b8644523 84 WORD n_rootdir; /* Number of root directory entries */
TickTock 0:1596b8644523 85 DWORD winsect; /* Current sector appearing in the win[] */
TickTock 0:1596b8644523 86 DWORD sects_fat; /* Sectors per fat */
TickTock 0:1596b8644523 87 DWORD max_clust; /* Maximum cluster# + 1 */
TickTock 0:1596b8644523 88 DWORD fatbase; /* FAT start sector */
TickTock 0:1596b8644523 89 DWORD dirbase; /* Root directory start sector (cluster# for FAT32) */
TickTock 0:1596b8644523 90 DWORD database; /* Data start sector */
TickTock 0:1596b8644523 91 #if !_FS_READONLY
TickTock 0:1596b8644523 92 DWORD last_clust; /* Last allocated cluster */
TickTock 0:1596b8644523 93 DWORD free_clust; /* Number of free clusters */
TickTock 0:1596b8644523 94 #if _USE_FSINFO
TickTock 0:1596b8644523 95 DWORD fsi_sector; /* fsinfo sector */
TickTock 0:1596b8644523 96 BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
TickTock 0:1596b8644523 97 BYTE pad2;
TickTock 0:1596b8644523 98 #endif
TickTock 0:1596b8644523 99 #endif
TickTock 0:1596b8644523 100 BYTE fs_type; /* FAT sub type */
TickTock 0:1596b8644523 101 BYTE csize; /* Number of sectors per cluster */
TickTock 0:1596b8644523 102 #if S_MAX_SIZ > 512U
TickTock 0:1596b8644523 103 WORD s_size; /* Sector size */
TickTock 0:1596b8644523 104 #endif
TickTock 0:1596b8644523 105 BYTE n_fats; /* Number of FAT copies */
TickTock 0:1596b8644523 106 BYTE drive; /* Physical drive number */
TickTock 0:1596b8644523 107 BYTE winflag; /* win[] dirty flag (1:must be written back) */
TickTock 0:1596b8644523 108 BYTE pad1;
TickTock 0:1596b8644523 109 BYTE win[S_MAX_SIZ]; /* Disk access window for Directory/FAT */
TickTock 0:1596b8644523 110 } FATFS;
TickTock 0:1596b8644523 111
TickTock 0:1596b8644523 112
TickTock 0:1596b8644523 113 /* Directory object structure */
TickTock 0:1596b8644523 114 typedef struct _DIR {
TickTock 0:1596b8644523 115 WORD id; /* Owner file system mount ID */
TickTock 0:1596b8644523 116 WORD index; /* Current index */
TickTock 0:1596b8644523 117 FATFS* fs; /* Pointer to the owner file system object */
TickTock 0:1596b8644523 118 DWORD sclust; /* Start cluster */
TickTock 0:1596b8644523 119 DWORD clust; /* Current cluster */
TickTock 0:1596b8644523 120 DWORD sect; /* Current sector */
TickTock 0:1596b8644523 121 } FATFS_DIR;
TickTock 0:1596b8644523 122
TickTock 0:1596b8644523 123
TickTock 0:1596b8644523 124 /* File object structure */
TickTock 0:1596b8644523 125 typedef struct _FIL {
TickTock 0:1596b8644523 126 WORD id; /* Owner file system mount ID */
TickTock 0:1596b8644523 127 BYTE flag; /* File status flags */
TickTock 0:1596b8644523 128 BYTE csect; /* Sector address in the cluster */
TickTock 0:1596b8644523 129 FATFS* fs; /* Pointer to the owner file system object */
TickTock 0:1596b8644523 130 DWORD fptr; /* File R/W pointer */
TickTock 0:1596b8644523 131 DWORD fsize; /* File size */
TickTock 0:1596b8644523 132 DWORD org_clust; /* File start cluster */
TickTock 0:1596b8644523 133 DWORD curr_clust; /* Current cluster */
TickTock 0:1596b8644523 134 DWORD curr_sect; /* Current sector */
TickTock 0:1596b8644523 135 #if _FS_READONLY == 0
TickTock 0:1596b8644523 136 DWORD dir_sect; /* Sector containing the directory entry */
TickTock 0:1596b8644523 137 BYTE* dir_ptr; /* Ponter to the directory entry in the window */
TickTock 0:1596b8644523 138 #endif
TickTock 0:1596b8644523 139 BYTE buffer[S_MAX_SIZ]; /* File R/W buffer */
TickTock 0:1596b8644523 140 } FIL;
TickTock 0:1596b8644523 141
TickTock 0:1596b8644523 142
TickTock 0:1596b8644523 143 /* File status structure */
TickTock 0:1596b8644523 144 typedef struct _FILINFO {
TickTock 0:1596b8644523 145 DWORD fsize; /* Size */
TickTock 0:1596b8644523 146 WORD fdate; /* Date */
TickTock 0:1596b8644523 147 WORD ftime; /* Time */
TickTock 0:1596b8644523 148 BYTE fattrib; /* Attribute */
TickTock 0:1596b8644523 149 char fname[8+1+3+1]; /* Name (8.3 format) */
TickTock 0:1596b8644523 150 } FILINFO;
TickTock 0:1596b8644523 151
TickTock 0:1596b8644523 152
TickTock 0:1596b8644523 153
TickTock 0:1596b8644523 154 /* Definitions corresponds to multi partition */
TickTock 0:1596b8644523 155
TickTock 0:1596b8644523 156 #if _MULTI_PARTITION != 0 /* Multiple partition cfg */
TickTock 0:1596b8644523 157
TickTock 0:1596b8644523 158 typedef struct _PARTITION {
TickTock 0:1596b8644523 159 BYTE pd; /* Physical drive # (0-255) */
TickTock 0:1596b8644523 160 BYTE pt; /* Partition # (0-3) */
TickTock 0:1596b8644523 161 } PARTITION;
TickTock 0:1596b8644523 162 extern
TickTock 0:1596b8644523 163 const PARTITION Drives[]; /* Logical drive# to physical location conversion table */
TickTock 0:1596b8644523 164 #define LD2PD(drv) (Drives[drv].pd) /* Get physical drive# */
TickTock 0:1596b8644523 165 #define LD2PT(drv) (Drives[drv].pt) /* Get partition# */
TickTock 0:1596b8644523 166
TickTock 0:1596b8644523 167 #else /* Single partition cfg */
TickTock 0:1596b8644523 168
TickTock 0:1596b8644523 169 #define LD2PD(drv) (drv) /* Physical drive# is equal to logical drive# */
TickTock 0:1596b8644523 170 #define LD2PT(drv) 0 /* Always mounts the 1st partition */
TickTock 0:1596b8644523 171
TickTock 0:1596b8644523 172 #endif
TickTock 0:1596b8644523 173
TickTock 0:1596b8644523 174
TickTock 0:1596b8644523 175 /* File function return code (FRESULT) */
TickTock 0:1596b8644523 176
TickTock 0:1596b8644523 177 typedef enum {
TickTock 0:1596b8644523 178 FR_OK = 0, /* 0 */
TickTock 0:1596b8644523 179 FR_NOT_READY, /* 1 */
TickTock 0:1596b8644523 180 FR_NO_FILE, /* 2 */
TickTock 0:1596b8644523 181 FR_NO_PATH, /* 3 */
TickTock 0:1596b8644523 182 FR_INVALID_NAME, /* 4 */
TickTock 0:1596b8644523 183 FR_INVALID_DRIVE, /* 5 */
TickTock 0:1596b8644523 184 FR_DENIED, /* 6 */
TickTock 0:1596b8644523 185 FR_EXIST, /* 7 */
TickTock 0:1596b8644523 186 FR_RW_ERROR, /* 8 */
TickTock 0:1596b8644523 187 FR_WRITE_PROTECTED, /* 9 */
TickTock 0:1596b8644523 188 FR_NOT_ENABLED, /* 10 */
TickTock 0:1596b8644523 189 FR_NO_FILESYSTEM, /* 11 */
TickTock 0:1596b8644523 190 FR_INVALID_OBJECT, /* 12 */
TickTock 0:1596b8644523 191 FR_MKFS_ABORTED /* 13 */
TickTock 0:1596b8644523 192 } FRESULT;
TickTock 0:1596b8644523 193
TickTock 0:1596b8644523 194
TickTock 0:1596b8644523 195
TickTock 0:1596b8644523 196 /*-----------------------------------------------------*/
TickTock 0:1596b8644523 197 /* FatFs module application interface */
TickTock 0:1596b8644523 198
TickTock 0:1596b8644523 199 FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */
TickTock 0:1596b8644523 200 FRESULT f_open (FIL*, const char*, BYTE); /* Open or create a file */
TickTock 0:1596b8644523 201 FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from a file */
TickTock 0:1596b8644523 202 FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */
TickTock 0:1596b8644523 203 FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */
TickTock 0:1596b8644523 204 FRESULT f_close (FIL*); /* Close an open file object */
TickTock 0:1596b8644523 205 FRESULT f_opendir (FATFS_DIR*, const char*); /* Open an existing directory */
TickTock 0:1596b8644523 206 FRESULT f_readdir (FATFS_DIR*, FILINFO*); /* Read a directory item */
TickTock 0:1596b8644523 207 FRESULT f_stat (const char*, FILINFO*); /* Get file status */
TickTock 0:1596b8644523 208 FRESULT f_getfree (const char*, DWORD*, FATFS**); /* Get number of free clusters on the drive */
TickTock 0:1596b8644523 209 FRESULT f_truncate (FIL*); /* Truncate file */
TickTock 0:1596b8644523 210 FRESULT f_sync (FIL*); /* Flush cached data of a writing file */
TickTock 0:1596b8644523 211 FRESULT f_unlink (const char*); /* Delete an existing file or directory */
TickTock 0:1596b8644523 212 FRESULT f_mkdir (const char*); /* Create a new directory */
TickTock 0:1596b8644523 213 FRESULT f_chmod (const char*, BYTE, BYTE); /* Change file/dir attriburte */
TickTock 0:1596b8644523 214 FRESULT f_utime (const char*, const FILINFO*); /* Change file/dir timestamp */
TickTock 0:1596b8644523 215 FRESULT f_rename (const char*, const char*); /* Rename/Move a file or directory */
TickTock 0:1596b8644523 216 FRESULT f_mkfs (BYTE, BYTE, WORD); /* Create a file system on the drive */
TickTock 0:1596b8644523 217 #if _USE_STRFUNC
TickTock 0:1596b8644523 218 #define feof(fp) ((fp)->fptr == (fp)->fsize)
TickTock 0:1596b8644523 219 #define EOF -1
TickTock 0:1596b8644523 220 int fputc (int, FIL*); /* Put a character to the file */
TickTock 0:1596b8644523 221 int fputs (const char*, FIL*); /* Put a string to the file */
TickTock 0:1596b8644523 222 int fprintf (FIL*, const char*, ...); /* Put a formatted string to the file */
TickTock 0:1596b8644523 223 char* fgets (char*, int, FIL*); /* Get a string from the file */
TickTock 0:1596b8644523 224 #endif
TickTock 0:1596b8644523 225
TickTock 0:1596b8644523 226 /* User defined function to give a current time to fatfs module */
TickTock 0:1596b8644523 227
TickTock 0:1596b8644523 228 DWORD get_fattime (void); /* 31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */
TickTock 0:1596b8644523 229 /* 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */
TickTock 0:1596b8644523 230
TickTock 0:1596b8644523 231
TickTock 0:1596b8644523 232
TickTock 0:1596b8644523 233 /* File access control and file status flags (FIL.flag) */
TickTock 0:1596b8644523 234
TickTock 0:1596b8644523 235 #define FA_READ 0x01
TickTock 0:1596b8644523 236 #define FA_OPEN_EXISTING 0x00
TickTock 0:1596b8644523 237 #if _FS_READONLY == 0
TickTock 0:1596b8644523 238 #define FA_WRITE 0x02
TickTock 0:1596b8644523 239 #define FA_CREATE_NEW 0x04
TickTock 0:1596b8644523 240 #define FA_CREATE_ALWAYS 0x08
TickTock 0:1596b8644523 241 #define FA_OPEN_ALWAYS 0x10
TickTock 0:1596b8644523 242 #define FA__WRITTEN 0x20
TickTock 0:1596b8644523 243 #define FA__DIRTY 0x40
TickTock 0:1596b8644523 244 #endif
TickTock 0:1596b8644523 245 #define FA__ERROR 0x80
TickTock 0:1596b8644523 246
TickTock 0:1596b8644523 247
TickTock 0:1596b8644523 248 /* FAT sub type (FATFS.fs_type) */
TickTock 0:1596b8644523 249
TickTock 0:1596b8644523 250 #define FS_FAT12 1
TickTock 0:1596b8644523 251 #define FS_FAT16 2
TickTock 0:1596b8644523 252 #define FS_FAT32 3
TickTock 0:1596b8644523 253
TickTock 0:1596b8644523 254
TickTock 0:1596b8644523 255 /* File attribute bits for directory entry */
TickTock 0:1596b8644523 256
TickTock 0:1596b8644523 257 #define AM_RDO 0x01 /* Read only */
TickTock 0:1596b8644523 258 #define AM_HID 0x02 /* Hidden */
TickTock 0:1596b8644523 259 #define AM_SYS 0x04 /* System */
TickTock 0:1596b8644523 260 #define AM_VOL 0x08 /* Volume label */
TickTock 0:1596b8644523 261 #define AM_LFN 0x0F /* LFN entry */
TickTock 0:1596b8644523 262 #define AM_DIR 0x10 /* Directory */
TickTock 0:1596b8644523 263 #define AM_ARC 0x20 /* Archive */
TickTock 0:1596b8644523 264
TickTock 0:1596b8644523 265
TickTock 0:1596b8644523 266
TickTock 0:1596b8644523 267 /* Offset of FAT structure members */
TickTock 0:1596b8644523 268
TickTock 0:1596b8644523 269 #define BS_jmpBoot 0
TickTock 0:1596b8644523 270 #define BS_OEMName 3
TickTock 0:1596b8644523 271 #define BPB_BytsPerSec 11
TickTock 0:1596b8644523 272 #define BPB_SecPerClus 13
TickTock 0:1596b8644523 273 #define BPB_RsvdSecCnt 14
TickTock 0:1596b8644523 274 #define BPB_NumFATs 16
TickTock 0:1596b8644523 275 #define BPB_RootEntCnt 17
TickTock 0:1596b8644523 276 #define BPB_TotSec16 19
TickTock 0:1596b8644523 277 #define BPB_Media 21
TickTock 0:1596b8644523 278 #define BPB_FATSz16 22
TickTock 0:1596b8644523 279 #define BPB_SecPerTrk 24
TickTock 0:1596b8644523 280 #define BPB_NumHeads 26
TickTock 0:1596b8644523 281 #define BPB_HiddSec 28
TickTock 0:1596b8644523 282 #define BPB_TotSec32 32
TickTock 0:1596b8644523 283 #define BS_55AA 510
TickTock 0:1596b8644523 284
TickTock 0:1596b8644523 285 #define BS_DrvNum 36
TickTock 0:1596b8644523 286 #define BS_BootSig 38
TickTock 0:1596b8644523 287 #define BS_VolID 39
TickTock 0:1596b8644523 288 #define BS_VolLab 43
TickTock 0:1596b8644523 289 #define BS_FilSysType 54
TickTock 0:1596b8644523 290
TickTock 0:1596b8644523 291 #define BPB_FATSz32 36
TickTock 0:1596b8644523 292 #define BPB_ExtFlags 40
TickTock 0:1596b8644523 293 #define BPB_FSVer 42
TickTock 0:1596b8644523 294 #define BPB_RootClus 44
TickTock 0:1596b8644523 295 #define BPB_FSInfo 48
TickTock 0:1596b8644523 296 #define BPB_BkBootSec 50
TickTock 0:1596b8644523 297 #define BS_DrvNum32 64
TickTock 0:1596b8644523 298 #define BS_BootSig32 66
TickTock 0:1596b8644523 299 #define BS_VolID32 67
TickTock 0:1596b8644523 300 #define BS_VolLab32 71
TickTock 0:1596b8644523 301 #define BS_FilSysType32 82
TickTock 0:1596b8644523 302
TickTock 0:1596b8644523 303 #define FSI_LeadSig 0
TickTock 0:1596b8644523 304 #define FSI_StrucSig 484
TickTock 0:1596b8644523 305 #define FSI_Free_Count 488
TickTock 0:1596b8644523 306 #define FSI_Nxt_Free 492
TickTock 0:1596b8644523 307
TickTock 0:1596b8644523 308 #define MBR_Table 446
TickTock 0:1596b8644523 309
TickTock 0:1596b8644523 310 #define DIR_Name 0
TickTock 0:1596b8644523 311 #define DIR_Attr 11
TickTock 0:1596b8644523 312 #define DIR_NTres 12
TickTock 0:1596b8644523 313 #define DIR_CrtTime 14
TickTock 0:1596b8644523 314 #define DIR_CrtDate 16
TickTock 0:1596b8644523 315 #define DIR_FstClusHI 20
TickTock 0:1596b8644523 316 #define DIR_WrtTime 22
TickTock 0:1596b8644523 317 #define DIR_WrtDate 24
TickTock 0:1596b8644523 318 #define DIR_FstClusLO 26
TickTock 0:1596b8644523 319 #define DIR_FileSize 28
TickTock 0:1596b8644523 320
TickTock 0:1596b8644523 321
TickTock 0:1596b8644523 322
TickTock 0:1596b8644523 323 /* Multi-byte word access macros */
TickTock 0:1596b8644523 324
TickTock 0:1596b8644523 325 #if _MCU_ENDIAN == 1 /* Use word access */
TickTock 0:1596b8644523 326 #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
TickTock 0:1596b8644523 327 #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
TickTock 0:1596b8644523 328 #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
TickTock 0:1596b8644523 329 #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
TickTock 0:1596b8644523 330 #elif _MCU_ENDIAN == 2 /* Use byte-by-byte access */
TickTock 0:1596b8644523 331 #define LD_WORD(ptr) (WORD)(((WORD)*(volatile BYTE*)((ptr)+1)<<8)|(WORD)*(volatile BYTE*)(ptr))
TickTock 0:1596b8644523 332 #define LD_DWORD(ptr) (DWORD)(((DWORD)*(volatile BYTE*)((ptr)+3)<<24)|((DWORD)*(volatile BYTE*)((ptr)+2)<<16)|((WORD)*(volatile BYTE*)((ptr)+1)<<8)|*(volatile BYTE*)(ptr))
TickTock 0:1596b8644523 333 #define ST_WORD(ptr,val) *(volatile BYTE*)(ptr)=(BYTE)(val); *(volatile BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8)
TickTock 0:1596b8644523 334 #define ST_DWORD(ptr,val) *(volatile BYTE*)(ptr)=(BYTE)(val); *(volatile BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8); *(volatile BYTE*)((ptr)+2)=(BYTE)((DWORD)(val)>>16); *(volatile BYTE*)((ptr)+3)=(BYTE)((DWORD)(val)>>24)
TickTock 0:1596b8644523 335 #else
TickTock 0:1596b8644523 336 #error Do not forget to set _MCU_ENDIAN properly!
TickTock 0:1596b8644523 337 #endif
TickTock 0:1596b8644523 338
TickTock 0:1596b8644523 339 #ifdef __cplusplus
TickTock 0:1596b8644523 340 };
TickTock 0:1596b8644523 341 #endif
TickTock 0:1596b8644523 342
TickTock 0:1596b8644523 343 #define _FATFS
TickTock 0:1596b8644523 344 #endif /* _FATFS */