SdFatConfig.h 4.1 KB

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  1. /* Arduino SdFat Library
  2. * Copyright (C) 2009 by William Greiman
  3. *
  4. * This file is part of the Arduino SdFat Library
  5. *
  6. * This Library is free software: you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation, either version 3 of the License, or
  9. * (at your option) any later version.
  10. *
  11. * This Library is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with the Arduino SdFat Library. If not, see
  18. * <http://www.gnu.org/licenses/>.
  19. */
  20. /**
  21. * \file
  22. * \brief configuration definitions
  23. */
  24. #include "Marlin.h"
  25. #ifdef SDSUPPORT
  26. #ifndef SdFatConfig_h
  27. #define SdFatConfig_h
  28. #include <stdint.h>
  29. //------------------------------------------------------------------------------
  30. /**
  31. * To use multiple SD cards set USE_MULTIPLE_CARDS nonzero.
  32. *
  33. * Using multiple cards costs 400 - 500 bytes of flash.
  34. *
  35. * Each card requires about 550 bytes of SRAM so use of a Mega is recommended.
  36. */
  37. #define USE_MULTIPLE_CARDS 0
  38. //------------------------------------------------------------------------------
  39. /**
  40. * Call flush for endl if ENDL_CALLS_FLUSH is nonzero
  41. *
  42. * The standard for iostreams is to call flush. This is very costly for
  43. * SdFat. Each call to flush causes 2048 bytes of I/O to the SD.
  44. *
  45. * SdFat has a single 512 byte buffer for SD I/O so it must write the current
  46. * data block to the SD, read the directory block from the SD, update the
  47. * directory entry, write the directory block to the SD and read the data
  48. * block back into the buffer.
  49. *
  50. * The SD flash memory controller is not designed for this many rewrites
  51. * so performance may be reduced by more than a factor of 100.
  52. *
  53. * If ENDL_CALLS_FLUSH is zero, you must call flush and/or close to force
  54. * all data to be written to the SD.
  55. */
  56. #define ENDL_CALLS_FLUSH 0
  57. //------------------------------------------------------------------------------
  58. /**
  59. * Allow use of deprecated functions if ALLOW_DEPRECATED_FUNCTIONS is nonzero
  60. */
  61. #define ALLOW_DEPRECATED_FUNCTIONS 1
  62. //------------------------------------------------------------------------------
  63. /**
  64. * Allow FAT12 volumes if FAT12_SUPPORT is nonzero.
  65. * FAT12 has not been well tested.
  66. */
  67. #define FAT12_SUPPORT 0
  68. //------------------------------------------------------------------------------
  69. /**
  70. * SPI init rate for SD initialization commands. Must be 5 (F_CPU/64)
  71. * or 6 (F_CPU/128).
  72. */
  73. #define SPI_SD_INIT_RATE 5
  74. //------------------------------------------------------------------------------
  75. /**
  76. * Set the SS pin high for hardware SPI. If SS is chip select for another SPI
  77. * device this will disable that device during the SD init phase.
  78. */
  79. #define SET_SPI_SS_HIGH 1
  80. //------------------------------------------------------------------------------
  81. /**
  82. * Define MEGA_SOFT_SPI nonzero to use software SPI on Mega Arduinos.
  83. * Pins used are SS 10, MOSI 11, MISO 12, and SCK 13.
  84. *
  85. * MEGA_SOFT_SPI allows an unmodified Adafruit GPS Shield to be used
  86. * on Mega Arduinos. Software SPI works well with GPS Shield V1.1
  87. * but many SD cards will fail with GPS Shield V1.0.
  88. */
  89. #define MEGA_SOFT_SPI 0
  90. //------------------------------------------------------------------------------
  91. /**
  92. * Set USE_SOFTWARE_SPI nonzero to always use software SPI.
  93. */
  94. #define USE_SOFTWARE_SPI 0
  95. // define software SPI pins so Mega can use unmodified 168/328 shields
  96. /** Software SPI chip select pin for the SD */
  97. uint8_t const SOFT_SPI_CS_PIN = 10;
  98. /** Software SPI Master Out Slave In pin */
  99. uint8_t const SOFT_SPI_MOSI_PIN = 11;
  100. /** Software SPI Master In Slave Out pin */
  101. uint8_t const SOFT_SPI_MISO_PIN = 12;
  102. /** Software SPI Clock pin */
  103. uint8_t const SOFT_SPI_SCK_PIN = 13;
  104. //------------------------------------------------------------------------------
  105. /**
  106. * The __cxa_pure_virtual function is an error handler that is invoked when
  107. * a pure virtual function is called.
  108. */
  109. #define USE_CXA_PURE_VIRTUAL 1
  110. #endif // SdFatConfig_h
  111. #endif