My Marlin configs for Fabrikator Mini and CTC i3 Pro B
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SdFatUtil.cpp 2.6KB

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  1. /* Arduino SdFat Library
  2. * Copyright (C) 2008 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. * You should have received a copy of the GNU General Public License
  16. * along with the Arduino SdFat Library. If not, see
  17. * <http://www.gnu.org/licenses/>.
  18. */
  19. #include "SdFatUtil.h"
  20. //------------------------------------------------------------------------------
  21. /** Amount of free RAM
  22. * \return The number of free bytes.
  23. */
  24. int SdFatUtil::FreeRam() {
  25. extern int __bss_end;
  26. extern int* __brkval;
  27. int free_memory;
  28. if (reinterpret_cast<int>(__brkval) == 0) {
  29. // if no heap use from end of bss section
  30. free_memory = reinterpret_cast<int>(&free_memory)
  31. - reinterpret_cast<int>(&__bss_end);
  32. } else {
  33. // use from top of stack to heap
  34. free_memory = reinterpret_cast<int>(&free_memory)
  35. - reinterpret_cast<int>(__brkval);
  36. }
  37. return free_memory;
  38. }
  39. //------------------------------------------------------------------------------
  40. /** %Print a string in flash memory.
  41. *
  42. * \param[in] pr Print object for output.
  43. * \param[in] str Pointer to string stored in flash memory.
  44. */
  45. void SdFatUtil::print_P(Print* pr, PGM_P str) {
  46. for (uint8_t c; (c = pgm_read_byte(str)); str++) pr->write(c);
  47. }
  48. //------------------------------------------------------------------------------
  49. /** %Print a string in flash memory followed by a CR/LF.
  50. *
  51. * \param[in] pr Print object for output.
  52. * \param[in] str Pointer to string stored in flash memory.
  53. */
  54. void SdFatUtil::println_P(Print* pr, PGM_P str) {
  55. print_P(pr, str);
  56. pr->println();
  57. }
  58. //------------------------------------------------------------------------------
  59. /** %Print a string in flash memory to Serial.
  60. *
  61. * \param[in] str Pointer to string stored in flash memory.
  62. */
  63. void SdFatUtil::SerialPrint_P(PGM_P str) {
  64. print_P(&Serial, str);
  65. }
  66. //------------------------------------------------------------------------------
  67. /** %Print a string in flash memory to Serial followed by a CR/LF.
  68. *
  69. * \param[in] str Pointer to string stored in flash memory.
  70. */
  71. void SdFatUtil::SerialPrintln_P(PGM_P str) {
  72. println_P(&Serial, str);
  73. }