ADC Pins

Hello,

I am a novice to programming a microcontroller. I studied the board architecture and started trying the examples. I successfully ran the Hello & Blinky programs and also tried to tinker with them.

At the moment my target is to configure the ADC pins, connect a voltage source and get value displayed. Firstly, I tried to check it with the potentiometer but was unable to do.

Could someone please guide me how to access the ADC pins?