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heater: Enforce min/max_temp in heater.set_temp() 

Raise an error if the user requests a temperate outside the configured
min/max_temp range.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-02-21 10:48:42 -05:00
parent 566699f68a
commit 47f1d377f5
2 changed files with 16 additions and 3 deletions
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6
klippy/gcode.py
View File

@ -191,7 +191,11 @@ class GCodeParser:
def set_temp(self, heater, params, wait=False):
print_time = self.toolhead.get_last_move_time()
temp = float(params.get('S', '0'))
heater.set_temp(print_time, temp)
try:
heater.set_temp(print_time, temp)
except heater.error, e:
self.respond_error(str(e))
return
if wait:
self.bg_temp(heater)
# Individual command handlers

13
klippy/heater.py
View File

@ -21,7 +21,11 @@ MAX_HEAT_TIME = 5.0
AMBIENT_TEMP = 25.
PWM_MAX = 255
class error(Exception):
pass
class PrinterHeater:
error = error
def __init__(self, printer, config):
self.printer = printer
self.config = config
@ -29,6 +33,8 @@ class PrinterHeater:
self.thermistor_c = config.getchoice('thermistor_type', Thermistors)
self.pullup_r = config.getfloat('pullup_resistor', 4700.)
self.min_extrude_temp = config.getfloat('min_extrude_temp', 170.)
self.min_temp = self.config.getfloat('min_temp')
self.max_temp = self.config.getfloat('max_temp')
self.can_extrude = (self.min_extrude_temp <= 0.)
self.lock = threading.Lock()
self.last_temp = 0.
@ -50,8 +56,8 @@ class PrinterHeater:
self.mcu_pwm = self.printer.mcu.create_pwm(
heater_pin, 0, MAX_HEAT_TIME)
self.mcu_adc = self.printer.mcu.create_adc(thermistor_pin)
min_adc = self.calc_adc(self.config.getfloat('max_temp'))
max_adc = self.calc_adc(self.config.getfloat('min_temp'))
min_adc = self.calc_adc(self.max_temp)
max_adc = self.calc_adc(self.min_temp)
self.mcu_adc.set_minmax(
SAMPLE_TIME, SAMPLE_COUNT, minval=min_adc, maxval=max_adc)
self.mcu_adc.set_adc_callback(REPORT_TIME, self.adc_callback)
@ -102,6 +108,9 @@ class PrinterHeater:
#logging.debug("temp: %.3f %f = %f" % (read_time, read_value, temp))
# External commands
def set_temp(self, print_time, degrees):
if degrees and (degrees < self.min_temp or degrees > self.max_temp):
raise error("Requested temperature (%.1f) out of range (%.1f:%.1f)"
% (degrees, self.min_temp, self.max_temp))
with self.lock:
self.target_temp = degrees
def get_temp(self):