175 lines
6 KiB
C
175 lines
6 KiB
C
/*
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temperature.h - temperature controller
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Part of Marlin
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Copyright (c) 2011 Erik van der Zalm
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Grbl is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Grbl is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grbl. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef temperature_h
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#define temperature_h
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#include "Marlin.h"
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#include "planner.h"
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#ifdef PID_ADD_EXTRUSION_RATE
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#include "stepper.h"
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#endif
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// public functions
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void tp_init(); //initialize the heating
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void manage_heater(); //it is critical that this is called periodically.
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#ifdef FILAMENT_SENSOR
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// For converting raw Filament Width to milimeters
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float analog2widthFil();
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// For converting raw Filament Width to an extrusion ratio
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int widthFil_to_size_ratio();
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#endif
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// low level conversion routines
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// do not use these routines and variables outside of temperature.cpp
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extern int target_temperature[4];
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extern float current_temperature[4];
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#ifdef SHOW_TEMP_ADC_VALUES
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extern int current_temperature_raw[4];
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extern int current_temperature_bed_raw;
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#endif
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extern int target_temperature_bed;
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extern float current_temperature_bed;
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#ifdef TEMP_SENSOR_1_AS_REDUNDANT
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extern float redundant_temperature;
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#endif
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#if defined(CONTROLLERFAN_PIN) && CONTROLLERFAN_PIN > -1
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extern unsigned char soft_pwm_bed;
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#endif
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#ifdef PIDTEMP
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#ifdef PID_PARAMS_PER_EXTRUDER
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extern float Kp[EXTRUDERS], Ki[EXTRUDERS], Kd[EXTRUDERS], Kc[EXTRUDERS]; // one param per extruder
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#define PID_PARAM(param,e) param[e] // use macro to point to array value
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#else
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extern float Kp, Ki, Kd, Kc; // one param per extruder - saves 20 or 36 bytes of ram (inc array pointer)
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#define PID_PARAM(param, e) param // use macro to point directly to value
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#endif // PID_PARAMS_PER_EXTRUDER
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float scalePID_i(float i);
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float scalePID_d(float d);
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float unscalePID_i(float i);
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float unscalePID_d(float d);
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#endif
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#ifdef PIDTEMPBED
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extern float bedKp,bedKi,bedKd;
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#endif
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#ifdef BABYSTEPPING
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extern volatile int babystepsTodo[3];
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#endif
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//high level conversion routines, for use outside of temperature.cpp
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//inline so that there is no performance decrease.
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//deg=degreeCelsius
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FORCE_INLINE float degHotend(uint8_t extruder) { return current_temperature[extruder]; }
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FORCE_INLINE float degBed() { return current_temperature_bed; }
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#ifdef SHOW_TEMP_ADC_VALUES
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FORCE_INLINE float rawHotendTemp(uint8_t extruder) { return current_temperature_raw[extruder]; }
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FORCE_INLINE float rawBedTemp() { return current_temperature_bed_raw; }
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#endif
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FORCE_INLINE float degTargetHotend(uint8_t extruder) { return target_temperature[extruder]; }
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FORCE_INLINE float degTargetBed() { return target_temperature_bed; }
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FORCE_INLINE void setTargetHotend(const float &celsius, uint8_t extruder) { target_temperature[extruder] = celsius; }
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FORCE_INLINE void setTargetBed(const float &celsius) { target_temperature_bed = celsius; }
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FORCE_INLINE bool isHeatingHotend(uint8_t extruder) { return target_temperature[extruder] > current_temperature[extruder]; }
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FORCE_INLINE bool isHeatingBed() { return target_temperature_bed > current_temperature_bed; }
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FORCE_INLINE bool isCoolingHotend(uint8_t extruder) { return target_temperature[extruder] < current_temperature[extruder]; }
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FORCE_INLINE bool isCoolingBed() { return target_temperature_bed < current_temperature_bed; }
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#define degHotend0() degHotend(0)
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#define degTargetHotend0() degTargetHotend(0)
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#define setTargetHotend0(_celsius) setTargetHotend((_celsius), 0)
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#define isHeatingHotend0() isHeatingHotend(0)
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#define isCoolingHotend0() isCoolingHotend(0)
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#if EXTRUDERS > 1
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#define degHotend1() degHotend(1)
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#define degTargetHotend1() degTargetHotend(1)
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#define setTargetHotend1(_celsius) setTargetHotend((_celsius), 1)
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#define isHeatingHotend1() isHeatingHotend(1)
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#define isCoolingHotend1() isCoolingHotend(1)
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#else
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#define setTargetHotend1(_celsius) do{}while(0)
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#endif
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#if EXTRUDERS > 2
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#define degHotend2() degHotend(2)
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#define degTargetHotend2() degTargetHotend(2)
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#define setTargetHotend2(_celsius) setTargetHotend((_celsius), 2)
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#define isHeatingHotend2() isHeatingHotend(2)
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#define isCoolingHotend2() isCoolingHotend(2)
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#else
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#define setTargetHotend2(_celsius) do{}while(0)
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#endif
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#if EXTRUDERS > 3
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#define degHotend3() degHotend(3)
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#define degTargetHotend3() degTargetHotend(3)
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#define setTargetHotend3(_celsius) setTargetHotend((_celsius), 3)
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#define isHeatingHotend3() isHeatingHotend(3)
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#define isCoolingHotend3() isCoolingHotend(3)
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#else
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#define setTargetHotend3(_celsius) do{}while(0)
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#endif
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#if EXTRUDERS > 4
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#error Invalid number of extruders
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#endif
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int getHeaterPower(int heater);
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void disable_heater();
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void setWatch();
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void updatePID();
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#if defined (THERMAL_RUNAWAY_PROTECTION_PERIOD) && THERMAL_RUNAWAY_PROTECTION_PERIOD > 0
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void thermal_runaway_protection(int *state, unsigned long *timer, float temperature, float target_temperature, int heater_id, int period_seconds, int hysteresis_degc);
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static int thermal_runaway_state_machine[4]; // = {0,0,0,0};
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static unsigned long thermal_runaway_timer[4]; // = {0,0,0,0};
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static bool thermal_runaway = false;
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#if TEMP_SENSOR_BED != 0
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static int thermal_runaway_bed_state_machine;
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static unsigned long thermal_runaway_bed_timer;
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#endif
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#endif
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FORCE_INLINE void autotempShutdown() {
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#ifdef AUTOTEMP
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if (autotemp_enabled) {
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autotemp_enabled = false;
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if (degTargetHotend(active_extruder) > autotemp_min)
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setTargetHotend(0, active_extruder);
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}
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#endif
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}
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void PID_autotune(float temp, int extruder, int ncycles);
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void setExtruderAutoFanState(int pin, bool state);
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void checkExtruderAutoFans();
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#endif
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