mirror of https://github.com/ventoy/Ventoy.git
54 lines
1.8 KiB
Plaintext
54 lines
1.8 KiB
Plaintext
File IO Lib Options
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-=-=-=-=-=-=-=-=-=-
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See defines in fat_opts.h:
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FATFS_IS_LITTLE_ENDIAN [1/0]
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Which endian is your system? Set to 1 for little endian, 0 for big endian.
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FATFS_MAX_LONG_FILENAME [260]
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By default, 260 characters (max LFN length). Increase this to support greater path depths.
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FATFS_MAX_OPEN_FILES
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The more files you wish to have concurrently open, the greater this number should be.
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This increases the number of FL_FILE file structures in the library, each of these is around 1K in size (assuming 512 byte sectors).
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FAT_BUFFER_SECTORS
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Minimum is 1, more increases performance.
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This defines how many FAT sectors can be buffered per FAT_BUFFER entry.
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FAT_BUFFERS
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Minimum is 1, more increases performance.
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This defines how many FAT buffer entries are available.
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Memory usage is FAT_BUFFERS * FAT_BUFFER_SECTORS * FAT_SECTOR_SIZE
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FATFS_INC_WRITE_SUPPORT
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Support file write functionality.
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FAT_SECTOR_SIZE
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Sector size used by buffers. Most likely to be 512 bytes (standard for ATA/IDE).
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FAT_PRINTF
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A define that allows the File IO library to print to console/stdout.
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Provide your own printf function if printf not available.
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FAT_CLUSTER_CACHE_ENTRIES
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Size of cluster chain cache (can be undefined if not required).
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Mem used = FAT_CLUSTER_CACHE_ENTRIES * 4 * 2
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Improves access speed considerably.
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FATFS_INC_LFN_SUPPORT [1/0]
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Enable/Disable support for long filenames.
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FATFS_DIR_LIST_SUPPORT [1/0]
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Include support for directory listing.
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FATFS_INC_TIME_DATE_SUPPORT [1/0]
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Use time/date functions provided by time.h to update creation & modification timestamps.
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FATFS_INC_FORMAT_SUPPORT
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Include support for formatting disks (FAT16 only).
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FAT_PRINTF_NOINC_STDIO
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Disable use of printf & inclusion of stdio.h
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