temperature.h 6.7 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. #ifdef PIDTEMP
  65. extern int pid_cycle, pid_number_of_cycles;
  66. extern float Kc,_Kp,_Ki,_Kd;
  67. extern bool pid_tuning_finished;
  68. float scalePID_i(float i);
  69. float scalePID_d(float d);
  70. float unscalePID_i(float i);
  71. float unscalePID_d(float d);
  72. #endif
  73. #ifdef BABYSTEPPING
  74. extern volatile int babystepsTodo[3];
  75. #endif
  76. void resetPID(uint8_t extruder);
  77. inline void babystepsTodoZadd(int n)
  78. {
  79. if (n != 0) {
  80. CRITICAL_SECTION_START
  81. babystepsTodo[Z_AXIS] += n;
  82. CRITICAL_SECTION_END
  83. }
  84. }
  85. inline void babystepsTodoZsubtract(int n)
  86. {
  87. if (n != 0) {
  88. CRITICAL_SECTION_START
  89. babystepsTodo[Z_AXIS] -= n;
  90. CRITICAL_SECTION_END
  91. }
  92. }
  93. //high level conversion routines, for use outside of temperature.cpp
  94. //inline so that there is no performance decrease.
  95. //deg=degreeCelsius
  96. // Doesn't save FLASH when FORCE_INLINE removed.
  97. FORCE_INLINE float degHotend(uint8_t extruder) {
  98. return current_temperature[extruder];
  99. };
  100. #ifdef SHOW_TEMP_ADC_VALUES
  101. FORCE_INLINE float rawHotendTemp(uint8_t extruder) {
  102. return current_temperature_raw[extruder];
  103. };
  104. FORCE_INLINE float rawBedTemp() {
  105. return current_temperature_bed_raw;
  106. };
  107. #endif
  108. FORCE_INLINE float degBed() {
  109. return current_temperature_bed;
  110. };
  111. // Doesn't save FLASH when FORCE_INLINE removed.
  112. FORCE_INLINE float degTargetHotend(uint8_t extruder) {
  113. return target_temperature[extruder];
  114. };
  115. FORCE_INLINE float degTargetBed() {
  116. return target_temperature_bed;
  117. };
  118. // Doesn't save FLASH when FORCE_INLINE removed.
  119. FORCE_INLINE void setTargetHotend(const float &celsius, uint8_t extruder) {
  120. target_temperature[extruder] = celsius;
  121. resetPID(extruder);
  122. };
  123. // Doesn't save FLASH when not inlined.
  124. static inline void setTargetHotendSafe(const float &celsius, uint8_t extruder)
  125. {
  126. if (extruder<EXTRUDERS) {
  127. target_temperature[extruder] = celsius;
  128. resetPID(extruder);
  129. }
  130. }
  131. // Doesn't save FLASH when not inlined.
  132. static inline void setAllTargetHotends(const float &celsius)
  133. {
  134. for(int i=0;i<EXTRUDERS;i++) setTargetHotend(celsius,i);
  135. }
  136. FORCE_INLINE void setTargetBed(const float &celsius) {
  137. target_temperature_bed = celsius;
  138. };
  139. FORCE_INLINE bool isHeatingHotend(uint8_t extruder){
  140. return target_temperature[extruder] > current_temperature[extruder];
  141. };
  142. FORCE_INLINE bool isHeatingBed() {
  143. return target_temperature_bed > current_temperature_bed;
  144. };
  145. FORCE_INLINE bool isCoolingHotend(uint8_t extruder) {
  146. return target_temperature[extruder] < current_temperature[extruder];
  147. };
  148. FORCE_INLINE bool isCoolingBed() {
  149. return target_temperature_bed < current_temperature_bed;
  150. };
  151. #define degHotend0() degHotend(0)
  152. #define degTargetHotend0() degTargetHotend(0)
  153. #define setTargetHotend0(_celsius) setTargetHotend((_celsius), 0)
  154. #define isHeatingHotend0() isHeatingHotend(0)
  155. #define isCoolingHotend0() isCoolingHotend(0)
  156. #if EXTRUDERS > 1
  157. #define degHotend1() degHotend(1)
  158. #define degTargetHotend1() degTargetHotend(1)
  159. #define setTargetHotend1(_celsius) setTargetHotend((_celsius), 1)
  160. #define isHeatingHotend1() isHeatingHotend(1)
  161. #define isCoolingHotend1() isCoolingHotend(1)
  162. #else
  163. #define setTargetHotend1(_celsius) do{}while(0)
  164. #endif
  165. #if EXTRUDERS > 2
  166. #define degHotend2() degHotend(2)
  167. #define degTargetHotend2() degTargetHotend(2)
  168. #define setTargetHotend2(_celsius) setTargetHotend((_celsius), 2)
  169. #define isHeatingHotend2() isHeatingHotend(2)
  170. #define isCoolingHotend2() isCoolingHotend(2)
  171. #else
  172. #define setTargetHotend2(_celsius) do{}while(0)
  173. #endif
  174. #if EXTRUDERS > 3
  175. #error Invalid number of extruders
  176. #endif
  177. int getHeaterPower(int heater);
  178. void disable_heater();
  179. void updatePID();
  180. FORCE_INLINE void autotempShutdown(){
  181. #ifdef AUTOTEMP
  182. if(autotemp_enabled)
  183. {
  184. autotemp_enabled=false;
  185. if(degTargetHotend(active_extruder)>autotemp_min)
  186. setTargetHotend(0,active_extruder);
  187. }
  188. #endif
  189. }
  190. void PID_autotune(float temp, int extruder, int ncycles);
  191. void setExtruderAutoFanState(int pin, bool state);
  192. void checkExtruderAutoFans();
  193. #if (defined(FANCHECK) && defined(TACH_0) && (TACH_0 > -1))
  194. enum {
  195. EFCE_OK = 0, //!< normal operation, both fans are ok
  196. EFCE_DETECTED, //!< fan error detected, but not reported yet
  197. EFCE_REPORTED //!< fan error detected and reported to LCD and serial
  198. };
  199. extern volatile uint8_t fan_check_error;
  200. void countFanSpeed();
  201. void checkFanSpeed();
  202. void fanSpeedError(unsigned char _fan);
  203. void check_fans();
  204. #endif //(defined(TACH_0))
  205. void check_min_temp();
  206. void check_max_temp();
  207. #endif
  208. extern unsigned long extruder_autofan_last_check;
  209. extern uint8_t fanSpeedBckp;
  210. extern bool fan_measuring;