> What is the point in ADC if you can't use floating point?  The 16F88
> has ADC but even Microchip's C compiler will not work for it.  I don't
> see how ADC can be useful without a multiply and divide instruction to
> calculate the actual voltage value from the 10 bit representation.
> Thanks!

Perhaps you should give us some figures for what a step on your ADC
represents. As others have pointed out, fixed point arithmetic should be
more than adequate. However the other item I do wonder is what value of
reference voltage you are using. It does help to use a reference that makes
the calculation easy.

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