My 12lf1822 ADC won't read zero (lowest reading is 008)

[Darrel Taylor]

Nothing whacky there.

The WPUA register defaults to %00111111 on power-up.

If you do WPUA.3 = 1
nothing changes, because that bit is already a 1.
You have to disable pull-ups on the pins you don't want pulled-up.

The numbers over each bit show the POR/BOR defaults.