ADC measurement error on STM32G030KxTx

[Bernardo1947]

I am developing a project to take some measurements with ADC channels, however the values are wrong. When I connect any ADC channel direct to GND, it gives me a value about 60~80 (The ADCs are 12-bit precision) and this error propagates for any reading.

How should I solve this problem? Could be any PCB layout noise or is it a problem with ADC reference?

[waclawek.jan]

Did you perform ADC calibration as per instructions in Reference Manual?

JW

[Bernardo1947]

@Community member​ I've set the ADCAL bit and it solved as detailed in the RM, thank you a lot!