I want to use the Analog Comparator as well as the ADC for the same input voltage. I tried to assign pin PD1 for the the ADC (AIN1) as well as the AC (P3). However, Atmel Start doesn't allow that and reports a conflict. I generated the source with two different pins and modified the source so that the same pin is used for for the ADC and the AC. This seems to work without any problem!
Is there any reason why this should NOT be done?