temperature.h 6.8 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. #include "config.h"
  24. #ifdef SYSTEM_TIMER_2
  25. #define ENABLE_TEMPERATURE_INTERRUPT() TIMSK2 |= (1<<OCIE2B)
  26. #define DISABLE_TEMPERATURE_INTERRUPT() TIMSK2 &= ~(1<<OCIE2B)
  27. #else //SYSTEM_TIMER_2
  28. #define ENABLE_TEMPERATURE_INTERRUPT() TIMSK0 |= (1<<OCIE0B)
  29. #define DISABLE_TEMPERATURE_INTERRUPT() TIMSK0 &= ~(1<<OCIE0B)
  30. #endif //SYSTEM_TIMER_2
  31. // public functions
  32. void tp_init(); //initialize the heating
  33. void manage_heater(); //it is critical that this is called periodically.
  34. // low level conversion routines
  35. // do not use these routines and variables outside of temperature.cpp
  36. extern int target_temperature[EXTRUDERS];
  37. extern float current_temperature[EXTRUDERS];
  38. #ifdef SHOW_TEMP_ADC_VALUES
  39. extern int current_temperature_raw[EXTRUDERS];
  40. extern int current_temperature_bed_raw;
  41. #endif
  42. extern int target_temperature_bed;
  43. extern float current_temperature_bed;
  44. #ifdef PINDA_THERMISTOR
  45. extern uint16_t current_temperature_raw_pinda;
  46. extern float current_temperature_pinda;
  47. #endif
  48. #ifdef AMBIENT_THERMISTOR
  49. //extern int current_temperature_raw_ambient;
  50. extern float current_temperature_ambient;
  51. #endif
  52. #ifdef VOLT_PWR_PIN
  53. extern int current_voltage_raw_pwr;
  54. #endif
  55. #ifdef VOLT_BED_PIN
  56. extern int current_voltage_raw_bed;
  57. #endif
  58. #if IR_SENSOR_ANALOG
  59. extern int current_voltage_raw_IR;
  60. #endif //IR_SENSOR_ANALOG
  61. #if defined(CONTROLLERFAN_PIN) && CONTROLLERFAN_PIN > -1
  62. extern unsigned char soft_pwm_bed;
  63. #endif
  64. extern bool bedPWMDisabled;
  65. #ifdef PIDTEMP
  66. extern int pid_cycle, pid_number_of_cycles;
  67. extern float Kc,_Kp,_Ki,_Kd;
  68. extern bool pid_tuning_finished;
  69. float scalePID_i(float i);
  70. float scalePID_d(float d);
  71. float unscalePID_i(float i);
  72. float unscalePID_d(float d);
  73. #endif
  74. #ifdef BABYSTEPPING
  75. extern volatile int babystepsTodo[3];
  76. #endif
  77. void resetPID(uint8_t extruder);
  78. inline void babystepsTodoZadd(int n)
  79. {
  80. if (n != 0) {
  81. CRITICAL_SECTION_START
  82. babystepsTodo[Z_AXIS] += n;
  83. CRITICAL_SECTION_END
  84. }
  85. }
  86. inline void babystepsTodoZsubtract(int n)
  87. {
  88. if (n != 0) {
  89. CRITICAL_SECTION_START
  90. babystepsTodo[Z_AXIS] -= n;
  91. CRITICAL_SECTION_END
  92. }
  93. }
  94. //high level conversion routines, for use outside of temperature.cpp
  95. //inline so that there is no performance decrease.
  96. //deg=degreeCelsius
  97. // Doesn't save FLASH when FORCE_INLINE removed.
  98. FORCE_INLINE float degHotend(uint8_t extruder) {
  99. return current_temperature[extruder];
  100. };
  101. #ifdef SHOW_TEMP_ADC_VALUES
  102. FORCE_INLINE float rawHotendTemp(uint8_t extruder) {
  103. return current_temperature_raw[extruder];
  104. };
  105. FORCE_INLINE float rawBedTemp() {
  106. return current_temperature_bed_raw;
  107. };
  108. #endif
  109. FORCE_INLINE float degBed() {
  110. return current_temperature_bed;
  111. };
  112. // Doesn't save FLASH when FORCE_INLINE removed.
  113. FORCE_INLINE float degTargetHotend(uint8_t extruder) {
  114. return target_temperature[extruder];
  115. };
  116. FORCE_INLINE float degTargetBed() {
  117. return target_temperature_bed;
  118. };
  119. // Doesn't save FLASH when FORCE_INLINE removed.
  120. FORCE_INLINE void setTargetHotend(const float &celsius, uint8_t extruder) {
  121. target_temperature[extruder] = celsius;
  122. resetPID(extruder);
  123. };
  124. // Doesn't save FLASH when not inlined.
  125. static inline void setTargetHotendSafe(const float &celsius, uint8_t extruder)
  126. {
  127. if (extruder<EXTRUDERS) {
  128. target_temperature[extruder] = celsius;
  129. resetPID(extruder);
  130. }
  131. }
  132. // Doesn't save FLASH when not inlined.
  133. static inline void setAllTargetHotends(const float &celsius)
  134. {
  135. for(int i=0;i<EXTRUDERS;i++) setTargetHotend(celsius,i);
  136. }
  137. FORCE_INLINE void setTargetBed(const float &celsius) {
  138. target_temperature_bed = celsius;
  139. };
  140. FORCE_INLINE bool isHeatingHotend(uint8_t extruder){
  141. return target_temperature[extruder] > current_temperature[extruder];
  142. };
  143. FORCE_INLINE bool isHeatingBed() {
  144. return target_temperature_bed > current_temperature_bed;
  145. };
  146. FORCE_INLINE bool isCoolingHotend(uint8_t extruder) {
  147. return target_temperature[extruder] < current_temperature[extruder];
  148. };
  149. FORCE_INLINE bool isCoolingBed() {
  150. return target_temperature_bed < current_temperature_bed;
  151. };
  152. #define degHotend0() degHotend(0)
  153. #define degTargetHotend0() degTargetHotend(0)
  154. #define setTargetHotend0(_celsius) setTargetHotend((_celsius), 0)
  155. #define isHeatingHotend0() isHeatingHotend(0)
  156. #define isCoolingHotend0() isCoolingHotend(0)
  157. #if EXTRUDERS > 1
  158. #define degHotend1() degHotend(1)
  159. #define degTargetHotend1() degTargetHotend(1)
  160. #define setTargetHotend1(_celsius) setTargetHotend((_celsius), 1)
  161. #define isHeatingHotend1() isHeatingHotend(1)
  162. #define isCoolingHotend1() isCoolingHotend(1)
  163. #else
  164. #define setTargetHotend1(_celsius) do{}while(0)
  165. #endif
  166. #if EXTRUDERS > 2
  167. #define degHotend2() degHotend(2)
  168. #define degTargetHotend2() degTargetHotend(2)
  169. #define setTargetHotend2(_celsius) setTargetHotend((_celsius), 2)
  170. #define isHeatingHotend2() isHeatingHotend(2)
  171. #define isCoolingHotend2() isCoolingHotend(2)
  172. #else
  173. #define setTargetHotend2(_celsius) do{}while(0)
  174. #endif
  175. #if EXTRUDERS > 3
  176. #error Invalid number of extruders
  177. #endif
  178. int getHeaterPower(int heater);
  179. void disable_heater();
  180. void updatePID();
  181. FORCE_INLINE void autotempShutdown(){
  182. #ifdef AUTOTEMP
  183. if(autotemp_enabled)
  184. {
  185. autotemp_enabled=false;
  186. if(degTargetHotend(active_extruder)>autotemp_min)
  187. setTargetHotend(0,active_extruder);
  188. }
  189. #endif
  190. }
  191. void PID_autotune(float temp, int extruder, int ncycles);
  192. void setExtruderAutoFanState(int pin, bool state);
  193. void checkExtruderAutoFans();
  194. #if (defined(FANCHECK) && defined(TACH_0) && (TACH_0 > -1))
  195. enum {
  196. EFCE_OK = 0, //!< normal operation, both fans are ok
  197. EFCE_FIXED, //!< previous fan error was fixed
  198. EFCE_DETECTED, //!< fan error detected, but not reported yet
  199. EFCE_REPORTED //!< fan error detected and reported to LCD and serial
  200. };
  201. extern volatile uint8_t fan_check_error;
  202. void countFanSpeed();
  203. void checkFanSpeed();
  204. void fanSpeedError(unsigned char _fan);
  205. void check_fans();
  206. #endif //(defined(TACH_0))
  207. void check_min_temp();
  208. void check_max_temp();
  209. #endif
  210. extern unsigned long extruder_autofan_last_check;
  211. extern uint8_t fanSpeedBckp;
  212. extern bool fan_measuring;