marlin/Marlin/SdFatConfig.h

/**
 * Marlin 3D Printer Firmware
 * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * This program 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 program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/**
 * Arduino SdFat Library
 * Copyright (C) 2009 by William Greiman
 *
 * This file is part of the Arduino Sd2Card Library
 */
/**
 * \file
 * \brief configuration definitions
 */
#include "Marlin.h"
#if ENABLED(SDSUPPORT)

#ifndef SdFatConfig_h
  #define SdFatConfig_h
  #include <stdint.h>
  //------------------------------------------------------------------------------
  /**
  * 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
  //------------------------------------------------------------------------------
  /**
  * 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 1
  //------------------------------------------------------------------------------
  /**
  * 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 5 (F_CPU/64)
  * or 6 (F_CPU/128).
  */
  #define SPI_SD_INIT_RATE 5
  //------------------------------------------------------------------------------
  /**
  * Set the SS pin high for hardware SPI.  If SS is chip select for another SPI
  * device this will disable that device during the SD init phase.
  */
  #define SET_SPI_SS_HIGH 1
  //------------------------------------------------------------------------------
  /**
  * Define MEGA_SOFT_SPI nonzero to use software SPI on Mega Arduinos.
  * Pins used are SS 10, MOSI 11, MISO 12, and SCK 13.
  *
  * 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
  //------------------------------------------------------------------------------
  /**
  * Set USE_SOFTWARE_SPI nonzero to always use software SPI.
  */
  #define USE_SOFTWARE_SPI 0
  // define software SPI pins so Mega can use unmodified 168/328 shields
  /** Software SPI chip select pin for the SD */
  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;
  //------------------------------------------------------------------------------
  /**
  * The __cxa_pure_virtual function is an error handler that is invoked when
  * a pure virtual function is called.
  */
  #define USE_CXA_PURE_VIRTUAL 1

  /** Number of UTF-16 characters per entry */
  #define FILENAME_LENGTH 13

  /**
  * Defines for long (vfat) filenames
  */
  /** Number of VFAT entries used. Every entry has 13 UTF-16 characters */
  #define MAX_VFAT_ENTRIES (2)
  /** Total size of the buffer used to store the long filenames */
  #define LONG_FILENAME_LENGTH (FILENAME_LENGTH*MAX_VFAT_ENTRIES+1)
#endif  // SdFatConfig_h


#endif