Problem With ADC Converters

Started by Nathaniel Barshay March 13, 2007
I'm having a problem with ADC on pins 13, 19, and 20. When connected
to something they yield an output of around 900-910, and when allowed
to float they output 1024. The pins work fine as normal inputs, and
the rest of the A/D converter pins work perfectly. I'm also having
some intermittent problems with the verification step of the internal
EEPROM (more like every other download attempt). Everything has
worked fine in the past, I'm thinking this may be a result of the Chip
beginning to fail, although I'm not sure what I might have done to
cause this,
Any Ideas?,