I am about to use the on board a/d convertor for the STM32L0x processor. I have looked in the user manual of the chip and HAL user manual, where it mentions HAL_ADCEx_Calibration_Start() etc. for calibrating the a/d. But I cant find the actual sequence of commands to use. Also, after the calibration how can I tell what voltage the a/d value 4095 is equal to, so I can calculate the voltage coming in.