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Measuremet of internal temperature on ST32F303RCT6

Question asked by kolar.milan on Mar 13, 2018
Latest reply on Mar 15, 2018 by waclawek.jan

We have been using processor temperature measurement for a long time with different families of STM32: M3, F3, F4. Only the processor STM32F303RCT6 does not work. The measured voltage of the sensor is 2.22V and is relatively unstable (voltage for 25C is 1.43V). I just created a simple project that only measures the internal temperature sensor. This program works on STM32F303VCT6 but does not work on STM32F303RCT6. The conditions are exactly the same, 8MHz oscillator, 3.3V power supply. Other measurements in full application work normally. It seems like the internal temperature sensor is not connected to the internal input 16 of the ADC1 converter. Does anyone have a similar experience?