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spi_temperature: Improve handling of min_temp/max_temp overflows 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2021-02-01 10:34:08 -05:00
parent 333f8c210f
commit 74244ab0eb
1 changed files with 3 additions and 3 deletions
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6
klippy/extras/spi_temperature.py
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@ -145,7 +145,7 @@ class MAX31856(SensorBase):
return temp return temp
def calc_adc(self, temp): def calc_adc(self, temp):
adc = int( ( temp / MAX31856_MULT ) + 0.5 ) # convert to ADC value adc = int( ( temp / MAX31856_MULT ) + 0.5 ) # convert to ADC value
adc = adc << MAX31856_SCALE adc = max(0, min(0x3FFFF, adc)) << MAX31856_SCALE
return adc return adc
def build_spi_init(self, config): def build_spi_init(self, config):
cmds = [] cmds = []
@ -207,7 +207,7 @@ class MAX31855(SensorBase):
return temp return temp
def calc_adc(self, temp): def calc_adc(self, temp):
adc = int( ( temp / MAX31855_MULT ) + 0.5 ) # convert to ADC value adc = int( ( temp / MAX31855_MULT ) + 0.5 ) # convert to ADC value
adc = adc << MAX31855_SCALE adc = max(0, min(0x1FFF, adc)) << MAX31855_SCALE
return adc return adc
@ -234,7 +234,7 @@ class MAX6675(SensorBase):
return temp return temp
def calc_adc(self, temp): def calc_adc(self, temp):
adc = int( ( temp / MAX6675_MULT ) + 0.5 ) # convert to ADC value adc = int( ( temp / MAX6675_MULT ) + 0.5 ) # convert to ADC value
adc = adc << MAX6675_SCALE adc = max(0, min(0x1FFF, adc)) << MAX6675_SCALE
return adc return adc