/* Arduino SdFat Library * Copyright (C) 2012 by William Greiman * * This file is part of the Arduino SdFat 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 Arduino SdFat Library. If not, see * . */ /** * \file * \brief configuration definitions */ #ifndef SdFatConfig_h #define SdFatConfig_h #include //------------------------------------------------------------------------------ /** * Set USE_SEPARATE_FAT_CACHE nonzero 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__ //------------------------------------------------------------------------------ /** * Don't use mult-block read/write on small AVR boards */ #if defined(RAMEND) && RAMEND < 3000 #define USE_MULTI_BLOCK_SD_IO 0 #else #define USE_MULTI_BLOCK_SD_IO 1 #endif //------------------------------------------------------------------------------ /** * Force use of Arduino Standard SPI library if USE_ARDUINO_SPI_LIBRARY * is nonzero. */ #define USE_ARDUINO_SPI_LIBRARY 0 //------------------------------------------------------------------------------ /** * Use native SPI on Teensy 3.0 if USE_NATIVE_MK20DX128-SPI is nonzero. */ #if defined(__arm__) && defined(CORE_TEENSY) #define USE_NATIVE_MK20DX128_SPI 1 #else #define USE_NATIVE_MK20DX128_SPI 0 #endif //------------------------------------------------------------------------------ /** * Use fast SAM3X SPI library if USE_NATIVE_SAM3X_SPI is nonzero. */ #if defined(__arm__) && !defined(CORE_TEENSY) #define USE_NATIVE_SAM3X_SPI 1 #else #define USE_NATIVE_SAM3X_SPI 0 #endif //------------------------------------------------------------------------------ /** * To enable SD card CRC checking set USE_SD_CRC nonzero. * * Set USE_SD_CRC to 1 to use a smaller slower CRC-CCITT function. * * Set USE_SD_CRC to 2 to used a larger faster table driven CRC-CCITT function. */ #define USE_SD_CRC 0 //------------------------------------------------------------------------------ /** * To use multiple SD cards set USE_MULTIPLE_CARDS nonzero. * * Using multiple cards costs 400 - 500 bytes of flash. * * Each card requires about 550 bytes of SRAM so use of a Mega is recommended. */ #define USE_MULTIPLE_CARDS 0 //------------------------------------------------------------------------------ /** * Set DESTRUCTOR_CLOSES_FILE nonzero to close a file in its destructor. * * Causes use of lots of heap in ARM. */ #define DESTRUCTOR_CLOSES_FILE 0 //------------------------------------------------------------------------------ /** * For AVR * * Set nonzero to use Serial (the HardwareSerial class) for error messages * and output from print functions like ls(). * * If USE_SERIAL_FOR_STD_OUT is zero, a small non-interrupt driven class * is used to output messages to serial port zero. This allows an alternate * Serial library like SerialPort to be used with SdFat. * * You can redirect stdOut with SdFat::setStdOut(Print* stream) and * get the current stream with SdFat::stdOut(). */ #define USE_SERIAL_FOR_STD_OUT 0 //------------------------------------------------------------------------------ /** * Call flush for endl if ENDL_CALLS_FLUSH is nonzero * * 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 SD 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 use of deprecated functions if ALLOW_DEPRECATED_FUNCTIONS is nonzero */ #define ALLOW_DEPRECATED_FUNCTIONS 0 //------------------------------------------------------------------------------ /** * Allow FAT12 volumes if FAT12_SUPPORT is nonzero. * FAT12 has not been well tested. */ #define FAT12_SUPPORT 0 //------------------------------------------------------------------------------ /** * SPI init rate for SD initialization commands. Must be 10 (F_CPU/64) * or greater */ #define SPI_SD_INIT_RATE 11 //------------------------------------------------------------------------------ /** * Define MEGA_SOFT_SPI nonzero to use software SPI on Mega Arduinos. * Default pins used are SS 10, MOSI 11, MISO 12, and SCK 13. * Edit Software Spi pins to change pin numbers. * * MEGA_SOFT_SPI allows an unmodified Adafruit GPS Shield to be used * on Mega Arduinos. Software SPI works well with GPS Shield V1.1 * but many SD cards will fail with GPS Shield V1.0. */ #define MEGA_SOFT_SPI 0 //------------------------------------------------------------------------------ /** * Define LEONARDO_SOFT_SPI nonzero to use software SPI on Leonardo Arduinos. * Default pins used are SS 10, MOSI 11, MISO 12, and SCK 13. * Edit Software Spi pins to change pin numbers. * * LEONARDO_SOFT_SPI allows an unmodified Adafruit GPS Shield to be used * on Leonardo Arduinos. Software SPI works well with GPS Shield V1.1 * but many SD cards will fail with GPS Shield V1.0. */ #define LEONARDO_SOFT_SPI 0 //------------------------------------------------------------------------------ /** * Set USE_SOFTWARE_SPI nonzero to always use software SPI on AVR. */ #define USE_SOFTWARE_SPI 0 // define software SPI pins so Mega can use unmodified 168/328 shields /** Default Software SPI chip select pin */ uint8_t const SOFT_SPI_CS_PIN = 10; /** Software SPI Master Out Slave In pin */ uint8_t const SOFT_SPI_MOSI_PIN = 11; /** Software SPI Master In Slave Out pin */ uint8_t const SOFT_SPI_MISO_PIN = 12; /** Software SPI Clock pin */ uint8_t const SOFT_SPI_SCK_PIN = 13; #endif // SdFatConfig_h