/* FatLib Library * Copyright (C) 2013 by William Greiman * * This file is part of the FatLib Library * * This Library is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This Library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with the FatLib Library. If not, see * . */ /** * \file * \brief configuration definitions */ #ifndef FatLibConfig_h #define FatLibConfig_h /** Use SdFatConfig.h if nonzero */ #define USE_SDFAT_CONFIG 1 #if USE_SDFAT_CONFIG #include "../SdFatConfig.h" #else // USE_SDFAT_CONFIG #include #ifdef __AVR__ #include #endif // __AVR__ //------------------------------------------------------------------------------ /** * Set USE_SEPARATE_FAT_CACHE non-zero to use a second 512 byte cache * for FAT table entries. Improves performance for large writes that * are not a multiple of 512 bytes. */ #ifdef __arm__ #define USE_SEPARATE_FAT_CACHE 1 #else // __arm__ #define USE_SEPARATE_FAT_CACHE 0 #endif // __arm__ //------------------------------------------------------------------------------ /** * Set USE_MULTI_BLOCK_IO non-zero to use multi-block SD read/write. * * Don't use mult-block read/write on small AVR boards. */ #if defined(RAMEND) && RAMEND < 3000 #define USE_MULTI_BLOCK_IO 0 #else #define USE_MULTI_BLOCK_IO 1 #endif //------------------------------------------------------------------------------ /** * Set DESTRUCTOR_CLOSES_FILE non-zero to close a file in its destructor. * * Causes use of lots of heap in ARM. */ #define DESTRUCTOR_CLOSES_FILE 0 //------------------------------------------------------------------------------ /** * Call flush for endl if ENDL_CALLS_FLUSH is non-zero * * The standard for iostreams is to call flush. This is very costly for * SdFat. Each call to flush causes 2048 bytes of I/O to the SD. * * SdFat has a single 512 byte buffer for I/O so it must write the current * data block to the SD, read the directory block from the SD, update the * directory entry, write the directory block to the SD and read the data * block back into the buffer. * * The SD flash memory controller is not designed for this many rewrites * so performance may be reduced by more than a factor of 100. * * If ENDL_CALLS_FLUSH is zero, you must call flush and/or close to force * all data to be written to the SD. */ #define ENDL_CALLS_FLUSH 0 //------------------------------------------------------------------------------ /** * Allow FAT12 volumes if FAT12_SUPPORT is non-zero. * FAT12 has not been well tested. */ #define FAT12_SUPPORT 0 #endif // USE_SDFAT_CONFIG #endif // FatLibConfig_h