temperature.h 7.1 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. #include "stepper.h"
  21. #include "config.h"
  22. #ifdef SYSTEM_TIMER_2
  23. #define ENABLE_TEMPERATURE_INTERRUPT() TIMSK2 |= (1<<OCIE2B)
  24. #define DISABLE_TEMPERATURE_INTERRUPT() TIMSK2 &= ~(1<<OCIE2B)
  25. #else //SYSTEM_TIMER_2
  26. #define ENABLE_TEMPERATURE_INTERRUPT() TIMSK0 |= (1<<OCIE0B)
  27. #define DISABLE_TEMPERATURE_INTERRUPT() TIMSK0 &= ~(1<<OCIE0B)
  28. #endif //SYSTEM_TIMER_2
  29. // public functions
  30. void tp_init(); //initialize the heating
  31. void manage_heater(); //it is critical that this is called periodically.
  32. extern bool checkAllHotends(void);
  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. bool has_temperature_compensation();
  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. #ifdef IR_SENSOR_ANALOG
  59. extern uint16_t 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 _Kp,_Ki,_Kd;
  68. #ifdef PID_ADD_EXTRUSION_RATE
  69. extern float Kc;
  70. #endif
  71. extern bool pid_tuning_finished;
  72. float scalePID_i(float i);
  73. float scalePID_d(float d);
  74. float unscalePID_i(float i);
  75. float unscalePID_d(float d);
  76. #endif
  77. #ifdef BABYSTEPPING
  78. extern volatile int babystepsTodo[3];
  79. inline void babystepsTodoZadd(int n)
  80. {
  81. if (n != 0) {
  82. CRITICAL_SECTION_START
  83. babystepsTodo[Z_AXIS] += n;
  84. CRITICAL_SECTION_END
  85. }
  86. }
  87. #endif
  88. void resetPID(uint8_t extruder);
  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(uint8_t 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. // return "false", if all heaters are 'off' (ie. "true", if any heater is 'on')
  174. #define CHECK_ALL_HEATERS (checkAllHotends()||(target_temperature_bed!=0))
  175. int getHeaterPower(int heater);
  176. void disable_heater();
  177. void updatePID();
  178. FORCE_INLINE void autotempShutdown(){
  179. #ifdef AUTOTEMP
  180. if(autotemp_enabled)
  181. {
  182. autotemp_enabled=false;
  183. if(degTargetHotend(active_extruder)>autotemp_min)
  184. setTargetHotend(0,active_extruder);
  185. }
  186. #endif
  187. }
  188. void PID_autotune(float temp, int extruder, int ncycles);
  189. void setExtruderAutoFanState(uint8_t state);
  190. void checkExtruderAutoFans();
  191. #if (defined(FANCHECK) && defined(TACH_0) && (TACH_0 > -1))
  192. enum {
  193. EFCE_OK = 0, //!< normal operation, both fans are ok
  194. EFCE_FIXED, //!< previous fan error was fixed
  195. EFCE_DETECTED, //!< fan error detected, but not reported yet
  196. EFCE_REPORTED //!< fan error detected and reported to LCD and serial
  197. };
  198. extern volatile uint8_t fan_check_error;
  199. void countFanSpeed();
  200. void checkFanSpeed();
  201. void fanSpeedError(unsigned char _fan);
  202. void check_fans();
  203. #endif //(defined(TACH_0))
  204. void check_min_temp();
  205. void check_max_temp();
  206. #ifdef EXTRUDER_ALTFAN_DETECT
  207. extern bool extruder_altfan_detect();
  208. extern void altfanOverride_toggle();
  209. extern bool altfanOverride_get();
  210. #endif //EXTRUDER_ALTFAN_DETECT
  211. extern unsigned long extruder_autofan_last_check;
  212. extern uint8_t fanSpeedBckp;
  213. extern bool fan_measuring;
  214. #endif