> I don't know the tin84 specifically, but the mega164 needs to have
the ADC turned off and restarted every sample to get valid readings.
I'm using free-running ADC conversion so this would definitely affect me
if it is a problem with the Tiny84. There's nothing in the errata, but
then there isn't for the 164 either.
I'm going to switch to single-ended conversions on each of the two
channels for now. However the bipolar/differential/free-running mode is
a natural fit for this application so I would be grateful for any
further suggestions.
Thanks,
Mark