temperature.h 7.0 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. extern bool checkAllHotends(void);
  35. // low level conversion routines
  36. // do not use these routines and variables outside of temperature.cpp
  37. extern int target_temperature[EXTRUDERS];
  38. extern float current_temperature[EXTRUDERS];
  39. #ifdef SHOW_TEMP_ADC_VALUES
  40. extern int current_temperature_raw[EXTRUDERS];
  41. extern int current_temperature_bed_raw;
  42. #endif
  43. extern int target_temperature_bed;
  44. extern float current_temperature_bed;
  45. #ifdef PINDA_THERMISTOR
  46. extern uint16_t current_temperature_raw_pinda;
  47. extern float current_temperature_pinda;
  48. bool has_temperature_compensation();
  49. #endif
  50. #ifdef AMBIENT_THERMISTOR
  51. extern int current_temperature_raw_ambient;
  52. extern float current_temperature_ambient;
  53. #endif
  54. #ifdef VOLT_PWR_PIN
  55. extern int current_voltage_raw_pwr;
  56. #endif
  57. #ifdef VOLT_BED_PIN
  58. extern int current_voltage_raw_bed;
  59. #endif
  60. #ifdef IR_SENSOR_ANALOG
  61. extern uint16_t current_voltage_raw_IR;
  62. #endif //IR_SENSOR_ANALOG
  63. #if defined(CONTROLLERFAN_PIN) && CONTROLLERFAN_PIN > -1
  64. extern unsigned char soft_pwm_bed;
  65. #endif
  66. extern bool bedPWMDisabled;
  67. #ifdef PIDTEMP
  68. extern int pid_cycle, pid_number_of_cycles;
  69. extern float Kc,_Kp,_Ki,_Kd;
  70. extern bool pid_tuning_finished;
  71. float scalePID_i(float i);
  72. float scalePID_d(float d);
  73. float unscalePID_i(float i);
  74. float unscalePID_d(float d);
  75. #endif
  76. #ifdef BABYSTEPPING
  77. extern volatile int babystepsTodo[3];
  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. #endif
  87. void resetPID(uint8_t extruder);
  88. //high level conversion routines, for use outside of temperature.cpp
  89. //inline so that there is no performance decrease.
  90. //deg=degreeCelsius
  91. // Doesn't save FLASH when FORCE_INLINE removed.
  92. FORCE_INLINE float degHotend(uint8_t extruder) {
  93. return current_temperature[extruder];
  94. };
  95. #ifdef SHOW_TEMP_ADC_VALUES
  96. FORCE_INLINE float rawHotendTemp(uint8_t extruder) {
  97. return current_temperature_raw[extruder];
  98. };
  99. FORCE_INLINE float rawBedTemp() {
  100. return current_temperature_bed_raw;
  101. };
  102. #endif
  103. FORCE_INLINE float degBed() {
  104. return current_temperature_bed;
  105. };
  106. // Doesn't save FLASH when FORCE_INLINE removed.
  107. FORCE_INLINE float degTargetHotend(uint8_t extruder) {
  108. return target_temperature[extruder];
  109. };
  110. FORCE_INLINE float degTargetBed() {
  111. return target_temperature_bed;
  112. };
  113. // Doesn't save FLASH when FORCE_INLINE removed.
  114. FORCE_INLINE void setTargetHotend(const float &celsius, uint8_t extruder) {
  115. target_temperature[extruder] = celsius;
  116. resetPID(extruder);
  117. };
  118. // Doesn't save FLASH when not inlined.
  119. static inline void setTargetHotendSafe(const float &celsius, uint8_t extruder)
  120. {
  121. if (extruder<EXTRUDERS) {
  122. target_temperature[extruder] = celsius;
  123. resetPID(extruder);
  124. }
  125. }
  126. // Doesn't save FLASH when not inlined.
  127. static inline void setAllTargetHotends(const float &celsius)
  128. {
  129. for(int i=0;i<EXTRUDERS;i++) setTargetHotend(celsius,i);
  130. }
  131. FORCE_INLINE void setTargetBed(const float &celsius) {
  132. target_temperature_bed = celsius;
  133. };
  134. FORCE_INLINE bool isHeatingHotend(uint8_t extruder){
  135. return target_temperature[extruder] > current_temperature[extruder];
  136. };
  137. FORCE_INLINE bool isHeatingBed() {
  138. return target_temperature_bed > current_temperature_bed;
  139. };
  140. FORCE_INLINE bool isCoolingHotend(uint8_t extruder) {
  141. return target_temperature[extruder] < current_temperature[extruder];
  142. };
  143. FORCE_INLINE bool isCoolingBed() {
  144. return target_temperature_bed < current_temperature_bed;
  145. };
  146. #define degHotend0() degHotend(0)
  147. #define degTargetHotend0() degTargetHotend(0)
  148. #define setTargetHotend0(_celsius) setTargetHotend((_celsius), 0)
  149. #define isHeatingHotend0() isHeatingHotend(0)
  150. #define isCoolingHotend0() isCoolingHotend(0)
  151. #if EXTRUDERS > 1
  152. #define degHotend1() degHotend(1)
  153. #define degTargetHotend1() degTargetHotend(1)
  154. #define setTargetHotend1(_celsius) setTargetHotend((_celsius), 1)
  155. #define isHeatingHotend1() isHeatingHotend(1)
  156. #define isCoolingHotend1() isCoolingHotend(1)
  157. #else
  158. #define setTargetHotend1(_celsius) do{}while(0)
  159. #endif
  160. #if EXTRUDERS > 2
  161. #define degHotend2() degHotend(2)
  162. #define degTargetHotend2() degTargetHotend(2)
  163. #define setTargetHotend2(_celsius) setTargetHotend((_celsius), 2)
  164. #define isHeatingHotend2() isHeatingHotend(2)
  165. #define isCoolingHotend2() isCoolingHotend(2)
  166. #else
  167. #define setTargetHotend2(_celsius) do{}while(0)
  168. #endif
  169. #if EXTRUDERS > 3
  170. #error Invalid number of extruders
  171. #endif
  172. // return "false", if all heaters are 'off' (ie. "true", if any heater is 'on')
  173. #define CHECK_ALL_HEATERS (checkAllHotends()||(target_temperature_bed!=0))
  174. int getHeaterPower(int heater);
  175. void disable_heater();
  176. void updatePID();
  177. FORCE_INLINE void autotempShutdown(){
  178. #ifdef AUTOTEMP
  179. if(autotemp_enabled)
  180. {
  181. autotemp_enabled=false;
  182. if(degTargetHotend(active_extruder)>autotemp_min)
  183. setTargetHotend(0,active_extruder);
  184. }
  185. #endif
  186. }
  187. void PID_autotune(float temp, int extruder, int ncycles);
  188. void setExtruderAutoFanState(uint8_t state);
  189. void checkExtruderAutoFans();
  190. #if (defined(FANCHECK) && defined(TACH_0) && (TACH_0 > -1))
  191. enum {
  192. EFCE_OK = 0, //!< normal operation, both fans are ok
  193. EFCE_FIXED, //!< previous fan error was fixed
  194. EFCE_DETECTED, //!< fan error detected, but not reported yet
  195. EFCE_REPORTED //!< fan error detected and reported to LCD and serial
  196. };
  197. extern volatile uint8_t fan_check_error;
  198. void countFanSpeed();
  199. void checkFanSpeed();
  200. void fanSpeedError(unsigned char _fan);
  201. void check_fans();
  202. #endif //(defined(TACH_0))
  203. void check_min_temp();
  204. void check_max_temp();
  205. #ifdef EXTRUDER_ALTFAN_DETECT
  206. extern bool extruder_altfan_detect();
  207. extern void altfanOverride_toggle();
  208. extern bool altfanOverride_get();
  209. #endif //EXTRUDER_ALTFAN_DETECT
  210. extern unsigned long extruder_autofan_last_check;
  211. extern uint8_t fanSpeedBckp;
  212. extern bool fan_measuring;
  213. #endif