temperature.h 4.4 KB

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  1. /*
  2. temperature.h - temperature controller
  3. Part of Marlin
  4. Copyright (c) 2011 Erik van der Zalm
  5. Grbl is free software: you can redistribute it and/or modify
  6. it under the terms of the GNU General Public License as published by
  7. the Free Software Foundation, either version 3 of the License, or
  8. (at your option) any later version.
  9. Grbl is distributed in the hope that it will be useful,
  10. but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. GNU General Public License for more details.
  13. You should have received a copy of the GNU General Public License
  14. along with Grbl. If not, see <http://www.gnu.org/licenses/>.
  15. */
  16. #ifndef temperature_h
  17. #define temperature_h
  18. #include "Marlin.h"
  19. #include "planner.h"
  20. #ifdef PID_ADD_EXTRUSION_RATE
  21. #include "stepper.h"
  22. #endif
  23. // public functions
  24. void tp_init(); //initialise the heating
  25. void manage_heater(); //it is critical that this is called periodically.
  26. //low leven conversion routines
  27. // do not use this routines and variables outsie of temperature.cpp
  28. int temp2analog(int celsius, uint8_t e);
  29. int temp2analogBed(int celsius);
  30. float analog2temp(int raw, uint8_t e);
  31. float analog2tempBed(int raw);
  32. extern int target_raw[EXTRUDERS];
  33. extern int heatingtarget_raw[EXTRUDERS];
  34. extern int current_raw[EXTRUDERS];
  35. extern int target_raw_bed;
  36. extern int current_raw_bed;
  37. #ifdef BED_LIMIT_SWITCHING
  38. extern int target_bed_low_temp ;
  39. extern int target_bed_high_temp ;
  40. #endif
  41. extern float Kp,Ki,Kd,Kc;
  42. #ifdef PIDTEMP
  43. extern float pid_setpoint[EXTRUDERS];
  44. #endif
  45. // #ifdef WATCHPERIOD
  46. extern int watch_raw[EXTRUDERS] ;
  47. // extern unsigned long watchmillis;
  48. // #endif
  49. //high level conversion routines, for use outside of temperature.cpp
  50. //inline so that there is no performance decrease.
  51. //deg=degreeCelsius
  52. FORCE_INLINE float degHotend(uint8_t extruder) {
  53. return analog2temp(current_raw[extruder], extruder);
  54. };
  55. FORCE_INLINE float degBed() {
  56. return analog2tempBed(current_raw_bed);
  57. };
  58. FORCE_INLINE float degTargetHotend(uint8_t extruder) {
  59. return analog2temp(target_raw[extruder], extruder);
  60. };
  61. FORCE_INLINE float degTargetBed() {
  62. return analog2tempBed(target_raw_bed);
  63. };
  64. FORCE_INLINE void setTargetHotend(const float &celsius, uint8_t extruder) {
  65. target_raw[extruder] = temp2analog(celsius, extruder);
  66. #ifdef PIDTEMP
  67. pid_setpoint[extruder] = celsius;
  68. #endif //PIDTEMP
  69. };
  70. FORCE_INLINE void setTargetBed(const float &celsius) {
  71. target_raw_bed = temp2analogBed(celsius);
  72. #ifdef BED_LIMIT_SWITCHING
  73. if(celsius>BED_HYSTERESIS)
  74. {
  75. target_bed_low_temp= temp2analogBed(celsius-BED_HYSTERESIS);
  76. target_bed_high_temp= temp2analogBed(celsius+BED_HYSTERESIS);
  77. }
  78. else
  79. {
  80. target_bed_low_temp=0;
  81. target_bed_high_temp=0;
  82. }
  83. #endif
  84. };
  85. FORCE_INLINE bool isHeatingHotend(uint8_t extruder){
  86. return target_raw[extruder] > current_raw[extruder];
  87. };
  88. FORCE_INLINE bool isHeatingBed() {
  89. return target_raw_bed > current_raw_bed;
  90. };
  91. FORCE_INLINE bool isCoolingHotend(uint8_t extruder) {
  92. return target_raw[extruder] < current_raw[extruder];
  93. };
  94. FORCE_INLINE bool isCoolingBed() {
  95. return target_raw_bed < current_raw_bed;
  96. };
  97. #define degHotend0() degHotend(0)
  98. #define degTargetHotend0() degTargetHotend(0)
  99. #define setTargetHotend0(_celsius) setTargetHotend((_celsius), 0)
  100. #define isHeatingHotend0() isHeatingHotend(0)
  101. #define isCoolingHotend0() isCoolingHotend(0)
  102. #if EXTRUDERS > 1
  103. #define degHotend1() degHotend(1)
  104. #define degTargetHotend1() degTargetHotend(1)
  105. #define setTargetHotend1(_celsius) setTargetHotend((_celsius), 1)
  106. #define isHeatingHotend1() isHeatingHotend(1)
  107. #define isCoolingHotend1() isCoolingHotend(1)
  108. #else
  109. #define setTargetHotend1(_celsius) do{}while(0)
  110. #endif
  111. #if EXTRUDERS > 2
  112. #define degHotend2() degHotend(2)
  113. #define degTargetHotend2() degTargetHotend(2)
  114. #define setTargetHotend2(_celsius) setTargetHotend((_celsius), 2)
  115. #define isHeatingHotend2() isHeatingHotend(2)
  116. #define isCoolingHotend2() isCoolingHotend(2)
  117. #else
  118. #define setTargetHotend2(_celsius) do{}while(0)
  119. #endif
  120. #if EXTRUDERS > 3
  121. #error Invalid number of extruders
  122. #endif
  123. int getHeaterPower(int heater);
  124. void disable_heater();
  125. void setWatch();
  126. void updatePID();
  127. FORCE_INLINE void autotempShutdown(){
  128. #ifdef AUTOTEMP
  129. if(autotemp_enabled)
  130. {
  131. autotemp_enabled=false;
  132. if(degTargetHotend(active_extruder)>autotemp_min)
  133. setTargetHotend(0,active_extruder);
  134. }
  135. #endif
  136. }
  137. void PID_autotune(float temp);
  138. #endif