Hi Caleb, Sorry, I was trying 2V calibration values : #define CALADC12_20V_30C *((unsigned int *)0x1A1E) #define CALADC12_20V_85C *((unsigned int *)0x1A20) that's why REFVSEL_1 was set as 2V. I probed many times, VCC is 3V. Furthermore, all ADC functions work normal except for internal temp sensor. We use ADC for battery monitoring and measuring external temperature sensor too. I am getting 255 (8bit digital value) at every measurement if part is supplied with battery.
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