11 Replies Latest reply on Jul 12, 2013 1:37 AM by ki.leung

    Analog Digital Pin Assignment _ Confusion!!!

    honey.gupta
              Hi there....I am giving a 10KHz clock to two pins of PSoC3 kit : P1[2] and P3[2]. Both have been configured in the schematic as "DIGITAL OUTPUT" pins...... When I check the output on a CRO, I get square waves [as expected] ...BUT the amplitude of both the waves is different.............it is around 3 volts for P1[2] and around 4.4volts for P3[2]. ........................my VDDD is 3.3 and VDDA is 5. ------------------------------------------------------------------------------------------------------------------- NOW, http://www.cypress.com/?docID=42947 This link suggests that Port 3 should be used as analog while Port 1as digital......SO this might explain it.............. But I have "configured" the pins as "DIGITAL" OUTPUT . So why varying amplitudes???