0e8242180d
This is an initial cut for feedback, updated for 2.0.x. Chamber temperature is currently reported along with hot end and bed temperatures to serial. The format is just like that used for hot end and bed temperatures, but using 'C' prefix. As there is no heater, target is always 0. Is this appropriate, is there a better way to report chamber temperatures? Chamber temperatures are not reported on the LCD in any way. When auto chamber fan is enabled, it currently just uses the same temperature threshold as the other auto controlled fans. As the chamber temperature is not connected to any heater, it doesn't undergo mintemp/maxtemp monitoring. This would need to change in the future if chamber heating became a feature.
650 lines
18 KiB
C++
650 lines
18 KiB
C++
/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program 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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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* temperature.h - temperature controller
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*/
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#ifndef TEMPERATURE_H
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#define TEMPERATURE_H
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#include "thermistor/thermistors.h"
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#include "../inc/MarlinConfig.h"
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#if ENABLED(BABYSTEPPING)
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extern bool axis_known_position[XYZ];
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#endif
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#if ENABLED(AUTO_POWER_CONTROL)
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#include "../feature/power.h"
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#endif
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#if ENABLED(PID_EXTRUSION_SCALING)
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#include "stepper.h"
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#endif
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#ifndef SOFT_PWM_SCALE
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#define SOFT_PWM_SCALE 0
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#endif
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/**
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* States for ADC reading in the ISR
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*/
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enum ADCSensorState : char {
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#if HAS_TEMP_0
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PrepareTemp_0,
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MeasureTemp_0,
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#endif
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#if HAS_TEMP_1
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PrepareTemp_1,
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MeasureTemp_1,
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#endif
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#if HAS_TEMP_2
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PrepareTemp_2,
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MeasureTemp_2,
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#endif
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#if HAS_TEMP_3
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PrepareTemp_3,
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MeasureTemp_3,
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#endif
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#if HAS_TEMP_4
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PrepareTemp_4,
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MeasureTemp_4,
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#endif
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#if HAS_TEMP_BED
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PrepareTemp_BED,
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MeasureTemp_BED,
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#endif
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#if HAS_TEMP_CHAMBER
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PrepareTemp_CHAMBER,
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MeasureTemp_CHAMBER,
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#endif
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#if ENABLED(FILAMENT_WIDTH_SENSOR)
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Prepare_FILWIDTH,
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Measure_FILWIDTH,
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#endif
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#if ENABLED(ADC_KEYPAD)
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Prepare_ADC_KEY,
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Measure_ADC_KEY,
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#endif
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SensorsReady, // Temperatures ready. Delay the next round of readings to let ADC pins settle.
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StartupDelay // Startup, delay initial temp reading a tiny bit so the hardware can settle
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};
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// Minimum number of Temperature::ISR loops between sensor readings.
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// Multiplied by 16 (OVERSAMPLENR) to obtain the total time to
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// get all oversampled sensor readings
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#define MIN_ADC_ISR_LOOPS 10
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#define ACTUAL_ADC_SAMPLES max(int(MIN_ADC_ISR_LOOPS), int(SensorsReady))
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#if HAS_PID_HEATING
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#define PID_K2 (1.0-PID_K1)
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#define PID_dT ((OVERSAMPLENR * float(ACTUAL_ADC_SAMPLES)) / TEMP_TIMER_FREQUENCY)
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// Apply the scale factors to the PID values
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#define scalePID_i(i) ( (i) * PID_dT )
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#define unscalePID_i(i) ( (i) / PID_dT )
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#define scalePID_d(d) ( (d) / PID_dT )
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#define unscalePID_d(d) ( (d) * PID_dT )
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#endif
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#if !HAS_HEATER_BED
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constexpr int16_t target_temperature_bed = 0;
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#endif
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class Temperature {
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public:
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static float current_temperature[HOTENDS],
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current_temperature_chamber,
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current_temperature_bed;
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static int16_t current_temperature_raw[HOTENDS],
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target_temperature[HOTENDS],
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current_temperature_chamber_raw,
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current_temperature_bed_raw;
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#if ENABLED(AUTO_POWER_E_FANS)
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static int16_t autofan_speed[HOTENDS];
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#endif
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#if HAS_HEATER_BED
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static int16_t target_temperature_bed;
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#endif
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static volatile bool in_temp_isr;
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static uint8_t soft_pwm_amount[HOTENDS],
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soft_pwm_amount_bed;
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#if ENABLED(FAN_SOFT_PWM)
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static uint8_t soft_pwm_amount_fan[FAN_COUNT],
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soft_pwm_count_fan[FAN_COUNT];
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#endif
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#if ENABLED(PIDTEMP)
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#if ENABLED(PID_PARAMS_PER_HOTEND) && HOTENDS > 1
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static float Kp[HOTENDS], Ki[HOTENDS], Kd[HOTENDS];
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#if ENABLED(PID_EXTRUSION_SCALING)
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static float Kc[HOTENDS];
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#endif
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#define PID_PARAM(param, h) Temperature::param[h]
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#else
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static float Kp, Ki, Kd;
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#if ENABLED(PID_EXTRUSION_SCALING)
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static float Kc;
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#endif
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#define PID_PARAM(param, h) Temperature::param
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#endif // PID_PARAMS_PER_HOTEND
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#endif
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#if ENABLED(PIDTEMPBED)
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static float bedKp, bedKi, bedKd;
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#endif
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#if ENABLED(BABYSTEPPING)
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static volatile int babystepsTodo[3];
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#endif
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#if WATCH_HOTENDS
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static uint16_t watch_target_temp[HOTENDS];
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static millis_t watch_heater_next_ms[HOTENDS];
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#endif
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#if WATCH_THE_BED
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static uint16_t watch_target_bed_temp;
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static millis_t watch_bed_next_ms;
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#endif
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#if ENABLED(PREVENT_COLD_EXTRUSION)
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static bool allow_cold_extrude;
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static int16_t extrude_min_temp;
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FORCE_INLINE static bool tooCold(const int16_t temp) { return allow_cold_extrude ? false : temp < extrude_min_temp; }
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FORCE_INLINE static bool tooColdToExtrude(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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return tooCold(degHotend(HOTEND_INDEX));
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}
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FORCE_INLINE static bool targetTooColdToExtrude(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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return tooCold(degTargetHotend(HOTEND_INDEX));
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}
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#else
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FORCE_INLINE static bool tooColdToExtrude(const uint8_t e) { UNUSED(e); return false; }
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FORCE_INLINE static bool targetTooColdToExtrude(const uint8_t e) { UNUSED(e); return false; }
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#endif
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FORCE_INLINE static bool hotEnoughToExtrude(const uint8_t e) { return !tooColdToExtrude(e); }
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FORCE_INLINE static bool targetHotEnoughToExtrude(const uint8_t e) { return !targetTooColdToExtrude(e); }
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private:
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#if EARLY_WATCHDOG
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// If temperature controller is running
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static bool inited;
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#endif
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#if ENABLED(TEMP_SENSOR_1_AS_REDUNDANT)
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static uint16_t redundant_temperature_raw;
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static float redundant_temperature;
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#endif
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static volatile bool temp_meas_ready;
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#if ENABLED(PIDTEMP)
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static float temp_iState[HOTENDS],
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temp_dState[HOTENDS],
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pTerm[HOTENDS],
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iTerm[HOTENDS],
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dTerm[HOTENDS];
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#if ENABLED(PID_EXTRUSION_SCALING)
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static float cTerm[HOTENDS];
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static long last_e_position;
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static long lpq[LPQ_MAX_LEN];
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static int lpq_ptr;
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#endif
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static float pid_error[HOTENDS];
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static bool pid_reset[HOTENDS];
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#endif
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#if ENABLED(PIDTEMPBED)
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static float temp_iState_bed,
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temp_dState_bed,
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pTerm_bed,
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iTerm_bed,
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dTerm_bed,
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pid_error_bed;
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#else
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static millis_t next_bed_check_ms;
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#endif
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static uint16_t raw_temp_value[MAX_EXTRUDERS],
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raw_temp_chamber_value,
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raw_temp_bed_value;
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// Init min and max temp with extreme values to prevent false errors during startup
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static int16_t minttemp_raw[HOTENDS],
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maxttemp_raw[HOTENDS],
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minttemp[HOTENDS],
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maxttemp[HOTENDS];
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#ifdef MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED
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static uint8_t consecutive_low_temperature_error[HOTENDS];
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#endif
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#ifdef MILLISECONDS_PREHEAT_TIME
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static millis_t preheat_end_time[HOTENDS];
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#endif
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#ifdef BED_MINTEMP
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static int16_t bed_minttemp_raw;
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#endif
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#ifdef BED_MAXTEMP
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static int16_t bed_maxttemp_raw;
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#endif
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#if ENABLED(FILAMENT_WIDTH_SENSOR)
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static int8_t meas_shift_index; // Index of a delayed sample in buffer
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#endif
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#if HAS_AUTO_FAN
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static millis_t next_auto_fan_check_ms;
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#endif
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#if ENABLED(FILAMENT_WIDTH_SENSOR)
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static uint16_t current_raw_filwidth; // Measured filament diameter - one extruder only
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#endif
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#if ENABLED(PROBING_HEATERS_OFF)
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static bool paused;
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#endif
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#if HEATER_IDLE_HANDLER
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static millis_t heater_idle_timeout_ms[HOTENDS];
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static bool heater_idle_timeout_exceeded[HOTENDS];
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#if HAS_TEMP_BED
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static millis_t bed_idle_timeout_ms;
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static bool bed_idle_timeout_exceeded;
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#endif
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#endif
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public:
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#if ENABLED(ADC_KEYPAD)
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static uint32_t current_ADCKey_raw;
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static uint8_t ADCKey_count;
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#endif
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/**
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* Instance Methods
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*/
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Temperature();
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void init();
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/**
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* Static (class) methods
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*/
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static float analog2temp(const int raw, const uint8_t e);
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#if HAS_TEMP_BED
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static float analog2tempBed(const int raw);
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#endif
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#if HAS_TEMP_CHAMBER
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static float analog2tempChamber(const int raw);
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#endif
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/**
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* Called from the Temperature ISR
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*/
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static void isr();
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/**
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* Call periodically to manage heaters
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*/
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static void manage_heater() _O2; // Added _O2 to work around a compiler error
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/**
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* Preheating hotends
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*/
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#ifdef MILLISECONDS_PREHEAT_TIME
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static bool is_preheating(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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return preheat_end_time[HOTEND_INDEX] && PENDING(millis(), preheat_end_time[HOTEND_INDEX]);
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}
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static void start_preheat_time(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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preheat_end_time[HOTEND_INDEX] = millis() + MILLISECONDS_PREHEAT_TIME;
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}
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static void reset_preheat_time(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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preheat_end_time[HOTEND_INDEX] = 0;
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}
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#else
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#define is_preheating(n) (false)
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#endif
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#if ENABLED(FILAMENT_WIDTH_SENSOR)
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static float analog2widthFil(); // Convert raw Filament Width to millimeters
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static int8_t widthFil_to_size_ratio(); // Convert Filament Width (mm) to an extrusion ratio
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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 static float degHotend(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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return current_temperature[HOTEND_INDEX];
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}
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FORCE_INLINE static float degBed() { return current_temperature_bed; }
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FORCE_INLINE static float degChamber() { return current_temperature_chamber; }
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#if ENABLED(SHOW_TEMP_ADC_VALUES)
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FORCE_INLINE static int16_t rawHotendTemp(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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return current_temperature_raw[HOTEND_INDEX];
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}
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FORCE_INLINE static int16_t rawBedTemp() { return current_temperature_bed_raw; }
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FORCE_INLINE static int16_t rawChamberTemp() { return current_temperature_chamber_raw; }
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#endif
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FORCE_INLINE static int16_t degTargetHotend(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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return target_temperature[HOTEND_INDEX];
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}
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FORCE_INLINE static int16_t degTargetBed() { return target_temperature_bed; }
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#if WATCH_HOTENDS
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static void start_watching_heater(const uint8_t e = 0);
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#endif
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#if WATCH_THE_BED
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static void start_watching_bed();
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#endif
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static void setTargetHotend(const int16_t celsius, const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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#ifdef MILLISECONDS_PREHEAT_TIME
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if (celsius == 0)
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reset_preheat_time(HOTEND_INDEX);
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else if (target_temperature[HOTEND_INDEX] == 0)
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start_preheat_time(HOTEND_INDEX);
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#endif
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#if ENABLED(AUTO_POWER_CONTROL)
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powerManager.power_on();
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#endif
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target_temperature[HOTEND_INDEX] = celsius;
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#if WATCH_HOTENDS
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start_watching_heater(HOTEND_INDEX);
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#endif
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}
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static void setTargetBed(const int16_t celsius) {
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#if HAS_HEATER_BED
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#if ENABLED(AUTO_POWER_CONTROL)
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powerManager.power_on();
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#endif
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target_temperature_bed =
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#ifdef BED_MAXTEMP
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min(celsius, BED_MAXTEMP)
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#else
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celsius
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#endif
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;
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#if WATCH_THE_BED
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start_watching_bed();
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#endif
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#endif
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}
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FORCE_INLINE static bool isHeatingHotend(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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return target_temperature[HOTEND_INDEX] > current_temperature[HOTEND_INDEX];
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}
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FORCE_INLINE static bool isHeatingBed() { return target_temperature_bed > current_temperature_bed; }
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FORCE_INLINE static bool isCoolingHotend(const uint8_t e) {
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#if HOTENDS == 1
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UNUSED(e);
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#endif
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return target_temperature[HOTEND_INDEX] < current_temperature[HOTEND_INDEX];
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}
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FORCE_INLINE static bool isCoolingBed() { return target_temperature_bed < current_temperature_bed; }
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FORCE_INLINE static bool wait_for_heating(const uint8_t e) {
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return degTargetHotend(e) > TEMP_HYSTERESIS && abs(degHotend(e) - degTargetHotend(e)) > TEMP_HYSTERESIS;
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}
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/**
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* The software PWM power for a heater
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*/
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static int getHeaterPower(int heater);
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/**
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* Switch off all heaters, set all target temperatures to 0
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*/
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static void disable_all_heaters();
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/**
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* Perform auto-tuning for hotend or bed in response to M303
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*/
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#if HAS_PID_HEATING
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static void PID_autotune(const float &target, const int8_t hotend, const int8_t ncycles, const bool set_result=false);
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/**
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* Update the temp manager when PID values change
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*/
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#if ENABLED(PIDTEMP)
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FORCE_INLINE static void updatePID() {
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#if ENABLED(PID_EXTRUSION_SCALING)
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last_e_position = 0;
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#endif
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}
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#endif
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#endif
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#if ENABLED(BABYSTEPPING)
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static void babystep_axis(const AxisEnum axis, const int16_t distance) {
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if (axis_known_position[axis]) {
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#if IS_CORE
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#if ENABLED(BABYSTEP_XY)
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switch (axis) {
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case CORE_AXIS_1: // X on CoreXY and CoreXZ, Y on CoreYZ
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babystepsTodo[CORE_AXIS_1] += distance * 2;
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babystepsTodo[CORE_AXIS_2] += distance * 2;
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break;
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case CORE_AXIS_2: // Y on CoreXY, Z on CoreXZ and CoreYZ
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babystepsTodo[CORE_AXIS_1] += CORESIGN(distance * 2);
|
|
babystepsTodo[CORE_AXIS_2] -= CORESIGN(distance * 2);
|
|
break;
|
|
case NORMAL_AXIS: // Z on CoreXY, Y on CoreXZ, X on CoreYZ
|
|
babystepsTodo[NORMAL_AXIS] += distance;
|
|
break;
|
|
}
|
|
#elif CORE_IS_XZ || CORE_IS_YZ
|
|
// Only Z stepping needs to be handled here
|
|
babystepsTodo[CORE_AXIS_1] += CORESIGN(distance * 2);
|
|
babystepsTodo[CORE_AXIS_2] -= CORESIGN(distance * 2);
|
|
#else
|
|
babystepsTodo[Z_AXIS] += distance;
|
|
#endif
|
|
#else
|
|
babystepsTodo[axis] += distance;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#endif // BABYSTEPPING
|
|
|
|
#if ENABLED(PROBING_HEATERS_OFF)
|
|
static void pause(const bool p);
|
|
FORCE_INLINE static bool is_paused() { return paused; }
|
|
#endif
|
|
|
|
#if HEATER_IDLE_HANDLER
|
|
|
|
static void start_heater_idle_timer(const uint8_t e, const millis_t timeout_ms) {
|
|
#if HOTENDS == 1
|
|
UNUSED(e);
|
|
#endif
|
|
heater_idle_timeout_ms[HOTEND_INDEX] = millis() + timeout_ms;
|
|
heater_idle_timeout_exceeded[HOTEND_INDEX] = false;
|
|
}
|
|
|
|
static void reset_heater_idle_timer(const uint8_t e) {
|
|
#if HOTENDS == 1
|
|
UNUSED(e);
|
|
#endif
|
|
heater_idle_timeout_ms[HOTEND_INDEX] = 0;
|
|
heater_idle_timeout_exceeded[HOTEND_INDEX] = false;
|
|
#if WATCH_HOTENDS
|
|
start_watching_heater(HOTEND_INDEX);
|
|
#endif
|
|
}
|
|
|
|
FORCE_INLINE static bool is_heater_idle(const uint8_t e) {
|
|
#if HOTENDS == 1
|
|
UNUSED(e);
|
|
#endif
|
|
return heater_idle_timeout_exceeded[HOTEND_INDEX];
|
|
}
|
|
|
|
#if HAS_TEMP_BED
|
|
static void start_bed_idle_timer(const millis_t timeout_ms) {
|
|
bed_idle_timeout_ms = millis() + timeout_ms;
|
|
bed_idle_timeout_exceeded = false;
|
|
}
|
|
|
|
static void reset_bed_idle_timer() {
|
|
bed_idle_timeout_ms = 0;
|
|
bed_idle_timeout_exceeded = false;
|
|
#if WATCH_THE_BED
|
|
start_watching_bed();
|
|
#endif
|
|
}
|
|
|
|
FORCE_INLINE static bool is_bed_idle() { return bed_idle_timeout_exceeded; }
|
|
#endif
|
|
|
|
#endif // HEATER_IDLE_HANDLER
|
|
|
|
#if HAS_TEMP_SENSOR
|
|
static void print_heaterstates(
|
|
#if NUM_SERIAL > 1
|
|
const int8_t port = -1
|
|
#endif
|
|
);
|
|
#if ENABLED(AUTO_REPORT_TEMPERATURES)
|
|
static uint8_t auto_report_temp_interval;
|
|
static millis_t next_temp_report_ms;
|
|
static void auto_report_temperatures(void);
|
|
FORCE_INLINE void set_auto_report_interval(uint8_t v) {
|
|
NOMORE(v, 60);
|
|
auto_report_temp_interval = v;
|
|
next_temp_report_ms = millis() + 1000UL * v;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
private:
|
|
|
|
#if ENABLED(FAST_PWM_FAN)
|
|
static void setPwmFrequency(const pin_t pin, int val);
|
|
#endif
|
|
|
|
static void set_current_temp_raw();
|
|
|
|
static void updateTemperaturesFromRawValues();
|
|
|
|
#if ENABLED(HEATER_0_USES_MAX6675)
|
|
static int read_max6675();
|
|
#endif
|
|
|
|
static void checkExtruderAutoFans();
|
|
|
|
static float get_pid_output(const int8_t e);
|
|
|
|
#if ENABLED(PIDTEMPBED)
|
|
static float get_pid_output_bed();
|
|
#endif
|
|
|
|
static void _temp_error(const int8_t e, const char * const serial_msg, const char * const lcd_msg);
|
|
static void min_temp_error(const int8_t e);
|
|
static void max_temp_error(const int8_t e);
|
|
|
|
#if ENABLED(THERMAL_PROTECTION_HOTENDS) || HAS_THERMALLY_PROTECTED_BED
|
|
|
|
typedef enum TRState : char { TRInactive, TRFirstHeating, TRStable, TRRunaway } TRstate;
|
|
|
|
static void thermal_runaway_protection(TRState * const state, millis_t * const timer, const float ¤t, const float &target, const int8_t heater_id, const uint16_t period_seconds, const uint16_t hysteresis_degc);
|
|
|
|
#if ENABLED(THERMAL_PROTECTION_HOTENDS)
|
|
static TRState thermal_runaway_state_machine[HOTENDS];
|
|
static millis_t thermal_runaway_timer[HOTENDS];
|
|
#endif
|
|
|
|
#if HAS_THERMALLY_PROTECTED_BED
|
|
static TRState thermal_runaway_bed_state_machine;
|
|
static millis_t thermal_runaway_bed_timer;
|
|
#endif
|
|
|
|
#endif // THERMAL_PROTECTION
|
|
|
|
};
|
|
|
|
extern Temperature thermalManager;
|
|
|
|
#endif // TEMPERATURE_H
|