Hi,
In my project I am using all the 16 ADC channels, facing problem in sensing the exact voltage values.
Have checked with voltage variations from 0v - 3.3v , my reference voltage is 3.3v.
My questions is:
while (in ADC Control Register 1 (ADCR1)) using once sequential or once simultaneous mode and triggered sequential and triggered sequential mode I can get the variation from 0v - 3.3v. But while using loop sequential or loop simultaneous mode even if I dint give any voltage input to adc it is automatically producing 1.2v-1.5v. How is this possible? It is not because of the circuit as I have not connected any sensor or input unit to channels.
I have gone through datasheet and user guide but I'm not clear. Can any one explain in detail?
