text: #ifndef _FFCONF_H_
  #define _FFCONF_H_
  
  /*---------------------------------------------------------------------------/
  /  FatFs Functional Configurations
  /---------------------------------------------------------------------------*/
  
  #define FFCONF_DEF	86606	/* Revision ID */
  
  /*---------------------------------------------------------------------------/
  / SD configuration
  /---------------------------------------------------------------------------*/
  #define SD_DISK_ENABLE
  
  /*---------------------------------------------------------------------------/
  / MSDK adaptation configuration
  /---------------------------------------------------------------------------*/
  #define RAM_DISK_ENABLE
  /* Available options are:
  /      RAM_DISK_ENABLE
  /      USB_DISK_ENABLE
  /      SD_DISK_ENABLE
  /      MMC_DISK_ENABLE
  /      SDSPI_DISK_ENABLE
  /      NAND_DISK_ENABLE */
  
  /*---------------------------------------------------------------------------/
  / Function Configurations
  /---------------------------------------------------------------------------*/
  
  #define FF_FS_READONLY	0
  /* This option switches read-only configuration. (0:Read/Write or 1:Read-only)
  /  Read-only configuration removes writing API functions, f_write(), f_sync(),
  /  f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree()
  /  and optional writing functions as well. */
  
  
  #define FF_FS_MINIMIZE	0
  /* This option defines minimization level to remove some basic API functions.
  /
  /   0: Basic functions are fully enabled.
  /   1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_truncate() and f_rename()
  /      are removed.
  /   2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1.
  /   3: f_lseek() function is removed in addition to 2. */
  
  
  #define FF_USE_STRFUNC	1
  /* This option switches string functions, f_gets(), f_putc(), f_puts() and f_printf().
  /
  /  0: Disable string functions.
  /  1: Enable without LF-CRLF conversion.
  /  2: Enable with LF-CRLF conversion. */
  
  
  #define FF_USE_FIND		0
  /* This option switches filtered directory read functions, f_findfirst() and
  /  f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */
  
  
  #define FF_USE_MKFS		1
  /* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
  
  
  #define FF_USE_FASTSEEK	0
  /* This option switches fast seek function. (0:Disable or 1:Enable) */
  
  
  #define FF_USE_EXPAND	0
  /* This option switches f_expand function. (0:Disable or 1:Enable) */
  
  
  #define FF_USE_CHMOD	0
  /* This option switches attribute manipulation functions, f_chmod() and f_utime().
  /  (0:Disable or 1:Enable) Also FF_FS_READONLY needs to be 0 to enable this option. */
  
  
  #define FF_USE_LABEL	0
  /* This option switches volume label functions, f_getlabel() and f_setlabel().
  /  (0:Disable or 1:Enable) */
  
  
  #define FF_USE_FORWARD	0
  /* This option switches f_forward() function. (0:Disable or 1:Enable) */
  
  
  /*---------------------------------------------------------------------------/
  / Locale and Namespace Configurations
  /---------------------------------------------------------------------------*/
  
  #define FF_CODE_PAGE	932
  /* This option specifies the OEM code page to be used on the target system.
  /  Incorrect code page setting can cause a file open failure.
  /
  /   437 - U.S.
  /   720 - Arabic
  /   737 - Greek
  /   771 - KBL
  /   775 - Baltic
  /   850 - Latin 1
  /   852 - Latin 2
  /   855 - Cyrillic
  /   857 - Turkish
  /   860 - Portuguese
  /   861 - Icelandic
  /   862 - Hebrew
  /   863 - Canadian French
  /   864 - Arabic
  /   865 - Nordic
  /   866 - Russian
  /   869 - Greek 2
  /   932 - Japanese (DBCS)
  /   936 - Simplified Chinese (DBCS)
  /   949 - Korean (DBCS)
  /   950 - Traditional Chinese (DBCS)
  /     0 - Include all code pages above and configured by f_setcp()
  */
  
  
  #define FF_USE_LFN		0
  #define FF_MAX_LFN		255
  /* The FF_USE_LFN switches the support for LFN (long file name).
  /
  /   0: Disable LFN. FF_MAX_LFN has no effect.
  /   1: Enable LFN with static  working buffer on the BSS. Always NOT thread-safe.
  /   2: Enable LFN with dynamic working buffer on the STACK.
  /   3: Enable LFN with dynamic working buffer on the HEAP.
  /
  /  To enable the LFN, ffunicode.c needs to be added to the project. The LFN function
  /  requiers certain internal working buffer occupies (FF_MAX_LFN + 1) * 2 bytes and
  /  additional (FF_MAX_LFN + 44) / 15 * 32 bytes when exFAT is enabled.
  /  The FF_MAX_LFN defines size of the working buffer in UTF-16 code unit and it can
  /  be in range of 12 to 255. It is recommended to be set it 255 to fully support LFN
  /  specification.
  /  When use stack for the working buffer, take care on stack overflow. When use heap
  /  memory for the working buffer, memory management functions, ff_memalloc() and
  /  ff_memfree() exemplified in ffsystem.c, need to be added to the project. */
  
  
  #define FF_LFN_UNICODE	0
  /* This option switches the character encoding on the API when LFN is enabled.
  /
  /   0: ANSI/OEM in current CP (TCHAR = char)
  /   1: Unicode in UTF-16 (TCHAR = WCHAR)
  /   2: Unicode in UTF-8 (TCHAR = char)
  /   3: Unicode in UTF-32 (TCHAR = DWORD)
  /
  /  Also behavior of string I/O functions will be affected by this option.
  /  When LFN is not enabled, this option has no effect. */
  
  
  #define FF_LFN_BUF		255
  #define FF_SFN_BUF		12
  /* This set of options defines size of file name members in the FILINFO structure
  /  which is used to read out directory items. These values should be suffcient for
  /  the file names to read. The maximum possible length of the read file name depends
  /  on character encoding. When LFN is not enabled, these options have no effect. */
  
  
  #define FF_STRF_ENCODE	3
  /* When FF_LFN_UNICODE >= 1 with LFN enabled, string I/O functions, f_gets(),
  /  f_putc(), f_puts and f_printf() convert the character encoding in it.
  /  This option selects assumption of character encoding ON THE FILE to be
  /  read/written via those functions.
  /
  /   0: ANSI/OEM in current CP
  /   1: Unicode in UTF-16LE
  /   2: Unicode in UTF-16BE
  /   3: Unicode in UTF-8
  */
  
  
  #define FF_FS_RPATH		2
  /* This option configures support for relative path.
  /
  /   0: Disable relative path and remove related functions.
  /   1: Enable relative path. f_chdir() and f_chdrive() are available.
  /   2: f_getcwd() function is available in addition to 1.
  */
  
  
  /*---------------------------------------------------------------------------/
  / Drive/Volume Configurations
  /---------------------------------------------------------------------------*/
  
  #define FF_VOLUMES		5
  /* Number of volumes (logical drives) to be used. (1-10) */
  
  
  #define FF_STR_VOLUME_ID	0
  #define FF_VOLUME_STRS		"RAM","NAND","CF","SD","SD2","USB","USB2","USB3"
  /* FF_STR_VOLUME_ID switches support for volume ID in arbitrary strings.
  /  When FF_STR_VOLUME_ID is set to 1 or 2, arbitrary strings can be used as drive
  /  number in the path name. FF_VOLUME_STRS defines the volume ID strings for each
  /  logical drives. Number of items must not be less than FF_VOLUMES. Valid
  /  characters for the volume ID strings are A-Z, a-z and 0-9, however, they are
  /  compared in case-insensitive. If FF_STR_VOLUME_ID >= 1 and FF_VOLUME_STRS is
  /  not defined, a user defined volume string table needs to be defined as:
  /
  /  const char* VolumeStr[FF_VOLUMES] = {"ram","flash","sd","usb",...
  */
  
  
  #define FF_MULTI_PARTITION	0
  /* This option switches support for multiple volumes on the physical drive.
  /  By default (0), each logical drive number is bound to the same physical drive
  /  number and only an FAT volume found on the physical drive will be mounted.
  /  When this function is enabled (1), each logical drive number can be bound to
  /  arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk()
  /  funciton will be available. */
  
  
  #define FF_MIN_SS		512
  #define FF_MAX_SS		512
  /* This set of options configures the range of sector size to be supported. (512,
  /  1024, 2048 or 4096) Always set both 512 for most systems, generic memory card and
  /  harddisk. But a larger value may be required for on-board flash memory and some
  /  type of optical media. When FF_MAX_SS is larger than FF_MIN_SS, FatFs is configured
  /  for variable sector size mode and disk_ioctl() function needs to implement
  /  GET_SECTOR_SIZE command. */
  
  
  #define FF_LBA64		0
  /* This option switches support for 64-bit LBA. (0:Disable or 1:Enable)
  /  To enable the 64-bit LBA, also exFAT needs to be enabled. (FF_FS_EXFAT == 1) */
  
  
  #define FF_MIN_GPT		0x100000000
  /* Minimum number of sectors to switch GPT format to create partition in f_mkfs and
  /  f_fdisk function. 0x100000000 max. This option has no effect when FF_LBA64 == 0. */
  
  
  #define FF_USE_TRIM		0
  /* This option switches support for ATA-TRIM. (0:Disable or 1:Enable)
  /  To enable Trim function, also CTRL_TRIM command should be implemented to the
  /  disk_ioctl() function. */
  
  
  
  /*---------------------------------------------------------------------------/
  / System Configurations
  /---------------------------------------------------------------------------*/
  
  #define FF_FS_TINY		0
  /* This option switches tiny buffer configuration. (0:Normal or 1:Tiny)
  /  At the tiny configuration, size of file object (FIL) is shrinked FF_MAX_SS bytes.
  /  Instead of private sector buffer eliminated from the file object, common sector
  /  buffer in the filesystem object (FATFS) is used for the file data transfer. */
  
  
  #define FF_FS_EXFAT		0
  /* This option switches support for exFAT filesystem. (0:Disable or 1:Enable)
  /  To enable exFAT, also LFN needs to be enabled. (FF_USE_LFN >= 1)
  /  Note that enabling exFAT discards ANSI C (C89) compatibility. */
  
  
  #define FF_FS_NORTC		1
  #define FF_NORTC_MON	1
  #define FF_NORTC_MDAY	1
  #define FF_NORTC_YEAR	2018
  /* The option FF_FS_NORTC switches timestamp functiton. If the system does not have
  /  any RTC function or valid timestamp is not needed, set FF_FS_NORTC = 1 to disable
  /  the timestamp function. Every object modified by FatFs will have a fixed timestamp
  /  defined by FF_NORTC_MON, FF_NORTC_MDAY and FF_NORTC_YEAR in local time.
  /  To enable timestamp function (FF_FS_NORTC = 0), get_fattime() function need to be
  /  added to the project to read current time form real-time clock. FF_NORTC_MON,
  /  FF_NORTC_MDAY and FF_NORTC_YEAR have no effect.
  /  These options have no effect in read-only configuration (FF_FS_READONLY = 1). */
  
  
  #define FF_FS_NOFSINFO	0
  /* If you need to know correct free space on the FAT32 volume, set bit 0 of this
  /  option, and f_getfree() function at first time after volume mount will force
  /  a full FAT scan. Bit 1 controls the use of last allocated cluster number.
  /
  /  bit0=0: Use free cluster count in the FSINFO if available.
  /  bit0=1: Do not trust free cluster count in the FSINFO.
  /  bit1=0: Use last allocated cluster number in the FSINFO if available.
  /  bit1=1: Do not trust last allocated cluster number in the FSINFO.
  */
  
  
  #define FF_FS_LOCK		0
  /* The option FF_FS_LOCK switches file lock function to control duplicated file open
  /  and illegal operation to open objects. This option must be 0 when FF_FS_READONLY
  /  is 1.
  /
  /  0:  Disable file lock function. To avoid volume corruption, application program
  /      should avoid illegal open, remove and rename to the open objects.
  /  >0: Enable file lock function. The value defines how many files/sub-directories
  /      can be opened simultaneously under file lock control. Note that the file
  /      lock control is independent of re-entrancy. */
  
  
  /* #include <somertos.h>	// O/S definitions */
  #define FF_FS_REENTRANT	0
  #define FF_FS_TIMEOUT	1000
  #define FF_SYNC_t		HANDLE
  /* The option FF_FS_REENTRANT switches the re-entrancy (thread safe) of the FatFs
  /  module itself. Note that regardless of this option, file access to different
  /  volume is always re-entrant and volume control functions, f_mount(), f_mkfs()
  /  and f_fdisk() function, are always not re-entrant. Only file/directory access
  /  to the same volume is under control of this function.
  /
  /   0: Disable re-entrancy. FF_FS_TIMEOUT and FF_SYNC_t have no effect.
  /   1: Enable re-entrancy. Also user provided synchronization handlers,
  /      ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj()
  /      function, must be added to the project. Samples are available in
  /      option/syscall.c.
  /
  /  The FF_FS_TIMEOUT defines timeout period in unit of time tick.
  /  The FF_SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*,
  /  SemaphoreHandle_t and etc. A header file for O/S definitions needs to be
  /  included somewhere in the scope of ff.h. */
  
  
  
  /*--- End of configuration options ---*/
  
  #endif /* _FFCONF_H_ */
  