Hey i'm newbie here, i am on dc to dc converter project and i need to set my adc sampling time to a specific time. i have search the forum but none of the example works, anyone can help me to give some adc interrupt setting example program that already works? thankyou 
Why use the ADC interrupt? Use a timer interrupt to take samples at particular times.
I want to be sure that i read actual ADC value from its register. Actual means the very last value together with the very last timer interrupt, I am not really sure that my AD converter would be synchronized with the timer interrupts without any extra ADC interrupt. thanks