temperature.h 6.6 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. #ifdef SYSTEM_TIMER_2
  24. #define ENABLE_TEMPERATURE_INTERRUPT() TIMSK2 |= (1<<OCIE2B)
  25. #define DISABLE_TEMPERATURE_INTERRUPT() TIMSK2 &= ~(1<<OCIE2B)
  26. #else //SYSTEM_TIMER_2
  27. #define ENABLE_TEMPERATURE_INTERRUPT() TIMSK0 |= (1<<OCIE0B)
  28. #define DISABLE_TEMPERATURE_INTERRUPT() TIMSK0 &= ~(1<<OCIE0B)
  29. #endif //SYSTEM_TIMER_2
  30. // public functions
  31. void tp_init(); //initialize the heating
  32. void manage_heater(); //it is critical that this is called periodically.
  33. // low level conversion routines
  34. // do not use these routines and variables outside of temperature.cpp
  35. extern int target_temperature[EXTRUDERS];
  36. extern float current_temperature[EXTRUDERS];
  37. #ifdef SHOW_TEMP_ADC_VALUES
  38. extern int current_temperature_raw[EXTRUDERS];
  39. extern int current_temperature_bed_raw;
  40. #endif
  41. extern int target_temperature_bed;
  42. extern float current_temperature_bed;
  43. #ifdef PINDA_THERMISTOR
  44. extern uint16_t current_temperature_raw_pinda;
  45. extern float current_temperature_pinda;
  46. #endif
  47. #ifdef AMBIENT_THERMISTOR
  48. //extern int current_temperature_raw_ambient;
  49. extern float current_temperature_ambient;
  50. #endif
  51. #ifdef VOLT_PWR_PIN
  52. extern int current_voltage_raw_pwr;
  53. #endif
  54. #ifdef VOLT_BED_PIN
  55. extern int current_voltage_raw_bed;
  56. #endif
  57. #if defined(CONTROLLERFAN_PIN) && CONTROLLERFAN_PIN > -1
  58. extern unsigned char soft_pwm_bed;
  59. #endif
  60. #ifdef PIDTEMP
  61. extern int pid_cycle, pid_number_of_cycles;
  62. extern float Kc,_Kp,_Ki,_Kd;
  63. extern bool pid_tuning_finished;
  64. float scalePID_i(float i);
  65. float scalePID_d(float d);
  66. float unscalePID_i(float i);
  67. float unscalePID_d(float d);
  68. #endif
  69. #ifdef BABYSTEPPING
  70. extern volatile int babystepsTodo[3];
  71. #endif
  72. void resetPID(uint8_t extruder);
  73. inline void babystepsTodoZadd(int n)
  74. {
  75. if (n != 0) {
  76. CRITICAL_SECTION_START
  77. babystepsTodo[Z_AXIS] += n;
  78. CRITICAL_SECTION_END
  79. }
  80. }
  81. inline void babystepsTodoZsubtract(int n)
  82. {
  83. if (n != 0) {
  84. CRITICAL_SECTION_START
  85. babystepsTodo[Z_AXIS] -= n;
  86. CRITICAL_SECTION_END
  87. }
  88. }
  89. //high level conversion routines, for use outside of temperature.cpp
  90. //inline so that there is no performance decrease.
  91. //deg=degreeCelsius
  92. // Doesn't save FLASH when FORCE_INLINE removed.
  93. FORCE_INLINE float degHotend(uint8_t extruder) {
  94. return current_temperature[extruder];
  95. };
  96. #ifdef SHOW_TEMP_ADC_VALUES
  97. FORCE_INLINE float rawHotendTemp(uint8_t extruder) {
  98. return current_temperature_raw[extruder];
  99. };
  100. FORCE_INLINE float rawBedTemp() {
  101. return current_temperature_bed_raw;
  102. };
  103. #endif
  104. FORCE_INLINE float degBed() {
  105. return current_temperature_bed;
  106. };
  107. // Doesn't save FLASH when FORCE_INLINE removed.
  108. FORCE_INLINE float degTargetHotend(uint8_t extruder) {
  109. return target_temperature[extruder];
  110. };
  111. FORCE_INLINE float degTargetBed() {
  112. return target_temperature_bed;
  113. };
  114. // Doesn't save FLASH when FORCE_INLINE removed.
  115. FORCE_INLINE void setTargetHotend(const float &celsius, uint8_t extruder) {
  116. target_temperature[extruder] = celsius;
  117. resetPID(extruder);
  118. };
  119. // Doesn't save FLASH when not inlined.
  120. static inline void setTargetHotendSafe(const float &celsius, uint8_t extruder)
  121. {
  122. if (extruder<EXTRUDERS) {
  123. target_temperature[extruder] = celsius;
  124. resetPID(extruder);
  125. }
  126. }
  127. // Doesn't save FLASH when not inlined.
  128. static inline void setAllTargetHotends(const float &celsius)
  129. {
  130. for(int i=0;i<EXTRUDERS;i++) setTargetHotend(celsius,i);
  131. }
  132. FORCE_INLINE void setTargetBed(const float &celsius) {
  133. target_temperature_bed = celsius;
  134. };
  135. FORCE_INLINE bool isHeatingHotend(uint8_t extruder){
  136. return target_temperature[extruder] > current_temperature[extruder];
  137. };
  138. FORCE_INLINE bool isHeatingBed() {
  139. return target_temperature_bed > current_temperature_bed;
  140. };
  141. FORCE_INLINE bool isCoolingHotend(uint8_t extruder) {
  142. return target_temperature[extruder] < current_temperature[extruder];
  143. };
  144. FORCE_INLINE bool isCoolingBed() {
  145. return target_temperature_bed < current_temperature_bed;
  146. };
  147. #define degHotend0() degHotend(0)
  148. #define degTargetHotend0() degTargetHotend(0)
  149. #define setTargetHotend0(_celsius) setTargetHotend((_celsius), 0)
  150. #define isHeatingHotend0() isHeatingHotend(0)
  151. #define isCoolingHotend0() isCoolingHotend(0)
  152. #if EXTRUDERS > 1
  153. #define degHotend1() degHotend(1)
  154. #define degTargetHotend1() degTargetHotend(1)
  155. #define setTargetHotend1(_celsius) setTargetHotend((_celsius), 1)
  156. #define isHeatingHotend1() isHeatingHotend(1)
  157. #define isCoolingHotend1() isCoolingHotend(1)
  158. #else
  159. #define setTargetHotend1(_celsius) do{}while(0)
  160. #endif
  161. #if EXTRUDERS > 2
  162. #define degHotend2() degHotend(2)
  163. #define degTargetHotend2() degTargetHotend(2)
  164. #define setTargetHotend2(_celsius) setTargetHotend((_celsius), 2)
  165. #define isHeatingHotend2() isHeatingHotend(2)
  166. #define isCoolingHotend2() isCoolingHotend(2)
  167. #else
  168. #define setTargetHotend2(_celsius) do{}while(0)
  169. #endif
  170. #if EXTRUDERS > 3
  171. #error Invalid number of extruders
  172. #endif
  173. int getHeaterPower(int heater);
  174. void disable_heater();
  175. void updatePID();
  176. FORCE_INLINE void autotempShutdown(){
  177. #ifdef AUTOTEMP
  178. if(autotemp_enabled)
  179. {
  180. autotemp_enabled=false;
  181. if(degTargetHotend(active_extruder)>autotemp_min)
  182. setTargetHotend(0,active_extruder);
  183. }
  184. #endif
  185. }
  186. void PID_autotune(float temp, int extruder, int ncycles);
  187. void setExtruderAutoFanState(int pin, bool state);
  188. void checkExtruderAutoFans();
  189. #if (defined(FANCHECK) && defined(TACH_0) && (TACH_0 > -1))
  190. enum {
  191. EFCE_OK = 0, //!< normal operation, both fans are ok
  192. EFCE_DETECTED, //!< fan error detected, but not reported yet
  193. EFCE_REPORTED //!< fan error detected and reported to LCD and serial
  194. };
  195. extern volatile uint8_t fan_check_error;
  196. void countFanSpeed();
  197. void checkFanSpeed();
  198. void fanSpeedError(unsigned char _fan);
  199. void check_fans();
  200. #endif //(defined(TACH_0))
  201. void check_min_temp();
  202. void check_max_temp();
  203. #endif
  204. extern unsigned long extruder_autofan_last_check;
  205. extern uint8_t fanSpeedBckp;
  206. extern bool fan_measuring;