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heaters: Increase time before clearing the temperature of an inactive heater

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The get_temp() code will stop reporting the last temperature of the
heater if there hasn't been any recent temperature updates.  However,
on a full mcu communication loss this can cause the verify_heater code
to report a heating error prior to the mcu code reporting the
communication failure.  Increase the heater timeout from 5 to 7
seconds to make it more likely the mcu failure is reported first.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2025-07-19 11:24:59 -04:00
parent 4e4a5c6336
commit 4691243179
1 changed files with 4 additions and 2 deletions
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6
klippy/extras/heaters.py
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@ -15,6 +15,7 @@ MAX_HEAT_TIME = 3.0
AMBIENT_TEMP = 25. AMBIENT_TEMP = 25.
PID_PARAM_BASE = 255. PID_PARAM_BASE = 255.
MAX_MAINTHREAD_TIME = 5.0 MAX_MAINTHREAD_TIME = 5.0
QUELL_STALE_TIME = 7.0
class Heater: class Heater:
def __init__(self, config, sensor): def __init__(self, config, sensor):
@ -110,9 +111,10 @@ class Heater:
with self.lock: with self.lock:
self.target_temp = degrees self.target_temp = degrees
def get_temp(self, eventtime): def get_temp(self, eventtime):
print_time = self.mcu_pwm.get_mcu().estimated_print_time(eventtime) - 5. est_print_time = self.mcu_pwm.get_mcu().estimated_print_time(eventtime)
quell_time = est_print_time - QUELL_STALE_TIME
with self.lock: with self.lock:
if self.last_temp_time < print_time: if self.last_temp_time < quell_time:
return 0., self.target_temp return 0., self.target_temp
return self.smoothed_temp, self.target_temp return self.smoothed_temp, self.target_temp
def check_busy(self, eventtime): def check_busy(self, eventtime):