text: /*---------------------------------------------------------------------------/
  /  FatFs - FAT file system module configuration file  R0.11 (C)ChaN, 2015
  /---------------------------------------------------------------------------*/
  
  #ifndef _FFCONF
  #define _FFCONF 32020	/* Revision ID */
  
  /*-----------------------------------------------------------------------------/
  / Additional user header to be used  
  /-----------------------------------------------------------------------------*/
  #include "stm32l4xx_hal.h"
  #include "cmsis_os.h"    /* _FS_REENTRANT set to 1 */                
  
  /*-----------------------------------------------------------------------------/
  / Functions and Buffer Configurations
  /-----------------------------------------------------------------------------*/
  
  #define _FS_TINY             0      /* 0:Normal or 1:Tiny */
  /* This option switches tiny buffer configuration. (0:Normal or 1:Tiny)
  /  At the tiny configuration, size of the file object (FIL) is reduced _MAX_SS
  /  bytes. Instead of private sector buffer eliminated from the file object,
  /  common sector buffer in the file system object (FATFS) is used for the file
  /  data transfer. */
  
  #define _FS_READONLY         0      /* 0:Read/Write or 1:Read only */
  /* 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 _FS_MINIMIZE         0      /* 0 to 3 */
  /* This option defines minimization level to remove some basic API functions.
  /
  /   0: All basic functions are enabled.
  /   1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_chmod(), f_utime(),
  /      f_truncate() and f_rename() function 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 _USE_STRFUNC         2      /* 0:Disable or 1-2:Enable */
  /* 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 _USE_FIND            0
  /* This option switches filtered directory read feature and related functions,
  /  f_findfirst() and f_findnext(). (0:Disable or 1:Enable) */
  
  #define _USE_MKFS            1
  /* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
  
  #define _USE_FASTSEEK        1
  /* This option switches fast seek feature. (0:Disable or 1:Enable) */
  
  #define _USE_LABEL           0
  /* This option switches volume label functions, f_getlabel() and f_setlabel().
  /  (0:Disable or 1:Enable) */
  
  #define _USE_FORWARD         0
  /* This option switches f_forward() function. (0:Disable or 1:Enable)
  /  To enable it, also _FS_TINY need to be set to 1. */
  
  /*-----------------------------------------------------------------------------/
  / Locale and Namespace Configurations
  /-----------------------------------------------------------------------------*/
  
  #define _CODE_PAGE         1252
  /* This option specifies the OEM code page to be used on the target system.
  /  Incorrect setting of the code page can cause a file open failure.
  /
  /   932  - Japanese Shift_JIS (DBCS, OEM, Windows)
  /   936  - Simplified Chinese GBK (DBCS, OEM, Windows)
  /   949  - Korean (DBCS, OEM, Windows)
  /   950  - Traditional Chinese Big5 (DBCS, OEM, Windows)
  /   1250 - Central Europe (Windows)
  /   1251 - Cyrillic (Windows)
  /   1252 - Latin 1 (Windows)
  /   1253 - Greek (Windows)
  /   1254 - Turkish (Windows)
  /   1255 - Hebrew (Windows)
  /   1256 - Arabic (Windows)
  /   1257 - Baltic (Windows)
  /   1258 - Vietnam (OEM, Windows)
  /   437  - U.S. (OEM)
  /   720  - Arabic (OEM)
  /   737  - Greek (OEM)
  /   775  - Baltic (OEM)
  /   850  - Multilingual Latin 1 (OEM)
  /   858  - Multilingual Latin 1 + Euro (OEM)
  /   852  - Latin 2 (OEM)
  /   855  - Cyrillic (OEM)
  /   866  - Russian (OEM)
  /   857  - Turkish (OEM)
  /   862  - Hebrew (OEM)
  /   874  - Thai (OEM, Windows)
  /   1    - ASCII (No extended character. Valid for only non-LFN configuration.) */
  
  #define _USE_LFN     0    /* 0 to 3 */
  #define _MAX_LFN     255    /* Maximum LFN length to handle (12 to 255) */
  /* The _USE_LFN option switches the LFN feature.
  /
  /   0: Disable LFN feature. _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.
  /
  /  When enable the LFN feature, Unicode handling functions (option/unicode.c) must
  /  be added to the project. The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes.
  /  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(), must be added to the project. */
  
  #define _LFN_UNICODE    0 /* 0:ANSI/OEM or 1:Unicode */
  /* This option switches character encoding on the API. (0:ANSI/OEM or 1:Unicode)
  /  To use Unicode string for the path name, enable LFN feature and set _LFN_UNICODE
  /  to 1. This option also affects behavior of string I/O functions. */
  
  #define _STRF_ENCODE    3
  /* When _LFN_UNICODE is 1, this option selects the character encoding on the file to
  /  be read/written via string I/O functions, f_gets(), f_putc(), f_puts and f_printf().
  /
  /  0: ANSI/OEM
  /  1: UTF-16LE
  /  2: UTF-16BE
  /  3: UTF-8
  /
  /  When _LFN_UNICODE is 0, this option has no effect. */
  
  #define _FS_RPATH       0 /* 0 to 2 */
  /* This option configures relative path feature.
  /
  /   0: Disable relative path feature and remove related functions.
  /   1: Enable relative path feature. f_chdir() and f_chdrive() are available.
  /   2: f_getcwd() function is available in addition to 1.
  /
  /  Note that directory items read via f_readdir() are affected by this option. */
  
  /*---------------------------------------------------------------------------/
  / Drive/Volume Configurations
  /----------------------------------------------------------------------------*/
  
  #define _VOLUMES    1
  /* Number of volumes (logical drives) to be used. */
  
  /* USER CODE BEGIN Volumes */  
  #define _STR_VOLUME_ID          0	/* 0:Use only 0-9 for drive ID, 1:Use strings for drive ID */
  #define _VOLUME_STRS            "RAM","NAND","CF","SD1","SD2","USB1","USB2","USB3"
  /* _STR_VOLUME_ID option switches string volume ID feature.
  /  When _STR_VOLUME_ID is set to 1, also pre-defined strings can be used as drive
  /  number in the path name. _VOLUME_STRS defines the drive ID strings for each
  /  logical drives. Number of items must be equal to _VOLUMES. Valid characters for
  /  the drive ID strings are: A-Z and 0-9. */
  /* USER CODE END Volumes */  
  
  #define _MULTI_PARTITION     0 /* 0:Single partition, 1:Multiple partition */
  /* This option switches multi-partition feature. 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 multi-partition feature is enabled (1),
  /  each logical drive number is bound to arbitrary physical drive and partition
  /  listed in the VolToPart[]. Also f_fdisk() funciton will be available. */
  
  #define _MIN_SS    4096  /* 512, 1024, 2048 or 4096 */
  #define _MAX_SS    4096  /* 512, 1024, 2048 or 4096 */
  /* These options configure the range of sector size to be supported. (512, 1024,
  /  2048 or 4096) Always set both 512 for most systems, all type of memory cards and
  /  harddisk. But a larger value may be required for on-board flash memory and some
  /  type of optical media. When _MAX_SS is larger than _MIN_SS, FatFs is configured
  /  to variable sector size and GET_SECTOR_SIZE command must be implemented to the
  /  disk_ioctl() function. */
  
  #define	_USE_TRIM      0
  /* This option switches ATA-TRIM feature. (0:Disable or 1:Enable)
  /  To enable Trim feature, also CTRL_TRIM command should be implemented to the
  /  disk_ioctl() function. */
  
  #define _FS_NOFSINFO    0 /* 0,1,2 or 3 */
  /* 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.
  */
  
  /*---------------------------------------------------------------------------/
  / System Configurations
  /----------------------------------------------------------------------------*/
  
  #define _FS_NORTC	0
  #define _NORTC_MON	6
  #define _NORTC_MDAY	4
  #define _NORTC_YEAR	2015
  /* The _FS_NORTC option switches timestamp feature. If the system does not have
  /  an RTC function or valid timestamp is not needed, set _FS_NORTC to 1 to disable
  /  the timestamp feature. All objects modified by FatFs will have a fixed timestamp
  /  defined by _NORTC_MON, _NORTC_MDAY and _NORTC_YEAR.
  /  When timestamp feature is enabled (_FS_NORTC	== 0), get_fattime() function need
  /  to be added to the project to read current time form RTC. _NORTC_MON,
  /  _NORTC_MDAY and _NORTC_YEAR have no effect. 
  /  These options have no effect at read-only configuration (_FS_READONLY == 1). */
  
  #define _FS_LOCK    2     /* 0:Disable or >=1:Enable */
  /* The _FS_LOCK option switches file lock feature to control duplicated file open
  /  and illegal operation to open objects. This option must be 0 when _FS_READONLY
  /  is 1.
  /
  /  0:  Disable file lock feature. To avoid volume corruption, application program
  /      should avoid illegal open, remove and rename to the open objects.
  /  >0: Enable file lock feature. The value defines how many files/sub-directories
  /      can be opened simultaneously under file lock control. Note that the file
  /      lock feature is independent of re-entrancy. */
  
  #define _FS_REENTRANT    1  /* 0:Disable or 1:Enable */
  #define _FS_TIMEOUT      1000 /* Timeout period in unit of time ticks */
  #define _SYNC_t          osSemaphoreId 
  /* The _FS_REENTRANT option 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 feature.
  /
  /   0: Disable re-entrancy. _FS_TIMEOUT and _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 _FS_TIMEOUT defines timeout period in unit of time tick.
  /  The _SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*,
  /  SemaphoreHandle_t and etc.. */
  
  #define _WORD_ACCESS    0 /* 0 or 1 */
  /* The _WORD_ACCESS option is an only platform dependent option. It defines
  /  which access method is used to the word data on the FAT volume.
  /
  /   0: Byte-by-byte access. Always compatible with all platforms.
  /   1: Word access. Do not choose this unless under both the following conditions.
  /
  /  * Address misaligned memory access is always allowed to ALL instructions.
  /  * Byte order on the memory is little-endian.
  /
  /  If it is the case, _WORD_ACCESS can also be set to 1 to reduce code size.
  /  Following table shows allowable settings of some processor types.
  /
  /   ARM7TDMI    0           ColdFire    0           V850E       0
  /   Cortex-M3   0           Z80         0/1         V850ES      0/1
  /   Cortex-M0   0           x86         0/1         TLCS-870    0/1
  /   AVR         0/1         RX600(LE)   0/1         TLCS-900    0/1
  /   AVR32       0           RL78        0           R32C        0
  /   PIC18       0/1         SH-2        0           M16C        0/1
  /   PIC24       0           H8S         0           MSP430      0
  /   PIC32       0           H8/300H     0           8051        0/1
  */
  
  #endif /* _FFCONF */
  