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STM32F205 temperature sensor problems

Question asked by fauskanger.tord on Jun 24, 2011
Latest reply on Jan 18, 2016 by lopez.pedro.001
Hi everybody,
I'm having some trouble with the STM32F205 temperature sensor. 

I'm using the algorithm from section 10.10 in the reference manual. {(V25 – VSENSE) / Avg_Slope} + 25

I'm using the following algorithm to convert the ADC value to a voltage value from the temperature sensor ADC channel (ch 16):
ADCConvertedValue*3.3/4096;

When I'm heating up the chip the ADCConvertedValue increases resulting in a greater voltage value, that results in lower temperature as a higher VSENSE value will subtract more from V25. 

Does anyone have the same problem ? 

Best Regards
Tord

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