90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
/**
|
|
* Marlin 3D Printer Firmware
|
|
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
|
|
*
|
|
* Based on Sprinter and grbl.
|
|
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* Hotend Idle Timeout
|
|
* Prevent filament in the nozzle from charring and causing a critical jam.
|
|
*/
|
|
|
|
#include "../inc/MarlinConfig.h"
|
|
|
|
#if ENABLED(HOTEND_IDLE_TIMEOUT)
|
|
|
|
#include "hotend_idle.h"
|
|
#include "../gcode/gcode.h"
|
|
|
|
#include "../module/temperature.h"
|
|
#include "../module/motion.h"
|
|
#include "../lcd/marlinui.h"
|
|
|
|
extern HotendIdleProtection hotend_idle;
|
|
|
|
millis_t HotendIdleProtection::next_protect_ms = 0;
|
|
|
|
void HotendIdleProtection::check_hotends(const millis_t &ms) {
|
|
bool do_prot = false;
|
|
HOTEND_LOOP() {
|
|
if (thermalManager.degHotend(e) >= HOTEND_IDLE_MIN_TRIGGER) {
|
|
do_prot = true; break;
|
|
}
|
|
}
|
|
if (bool(next_protect_ms) != do_prot)
|
|
next_protect_ms = do_prot ? ms + hp_interval : 0;
|
|
}
|
|
|
|
void HotendIdleProtection::check_e_motion(const millis_t &ms) {
|
|
static float old_e_position = 0;
|
|
if (old_e_position != current_position.e) {
|
|
old_e_position = current_position.e; // Track filament motion
|
|
if (next_protect_ms) // If some heater is on then...
|
|
next_protect_ms = ms + hp_interval; // ...delay the timeout till later
|
|
}
|
|
}
|
|
|
|
void HotendIdleProtection::check() {
|
|
const millis_t ms = millis(); // Shared millis
|
|
|
|
check_hotends(ms); // Any hotends need protection?
|
|
check_e_motion(ms); // Motion will protect them
|
|
|
|
// Hot and not moving for too long...
|
|
if (next_protect_ms && ELAPSED(ms, next_protect_ms))
|
|
timed_out();
|
|
}
|
|
|
|
// Lower (but don't raise) hotend / bed temperatures
|
|
void HotendIdleProtection::timed_out() {
|
|
next_protect_ms = 0;
|
|
SERIAL_ECHOLNPGM("Hotend Idle Timeout");
|
|
LCD_MESSAGEPGM(MSG_HOTEND_IDLE_TIMEOUT);
|
|
HOTEND_LOOP() {
|
|
if ((HOTEND_IDLE_NOZZLE_TARGET) < thermalManager.degTargetHotend(e))
|
|
thermalManager.setTargetHotend(HOTEND_IDLE_NOZZLE_TARGET, e);
|
|
}
|
|
#if HAS_HEATED_BED
|
|
if ((HOTEND_IDLE_BED_TARGET) < thermalManager.degTargetBed())
|
|
thermalManager.setTargetBed(HOTEND_IDLE_BED_TARGET);
|
|
#endif
|
|
}
|
|
|
|
#endif // HOTEND_IDLE_TIMEOUT
|