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    ADC Measuring Wrong Value

    user_385543602

       Hi,

         

      I am guessing this is something simple I am overlooking, but I am unable to get the ADC to correctly read input voltage values.  See the attached project.  For example, my multimeter (and a back up) are reading:

         

      ADC 0:  2.368V

         

      ADC 2:  2.283V

         

      The processor is computing:

         

      ADC 0:  2.255V

         

      ADC 2:  2.180V

         

      Both values are about 5% different - could be a red herring.

         

      Any ideas?

         

      Thank you,
      Tom

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