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    SubjectRe: temperature standard - global config option?
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    >>>>> "MHW" == Michael H Warfield <mhw@wittsend.com> writes:
    [snip]
    MHW> Yes, bits are free, sort of... That's why an extra decimal
    MHW> place is "ok". Keeping precision within an order of magnitude
    MHW> of accuracy is within the realm of reasonable. Running out to
    MHW> two decimal places for this particular application is just
    MHW> silly. If it were for calibrated lab equipment, fine. But not
    MHW> for CPU temperatures.

    You do introduce some rounding errors if the measurement isn't in
    Celsius or Kelvin. Ie, you must do a conversion because the hardware
    isn't in the desired units. In this case, the extra precision will be
    beneficial.

    If you are going your route, you should send error bars with all the
    measurements ;-) Fine, too many decimals leads to a false sense of
    security. However, no one knows the accuracy of any future
    temperature sensors so why not accommodate the possibility. Certainly
    some band gap semis can give a pretty good measurement if you have
    good coupling. If the temperature sensor was built into the CPU, you
    might actually have accuracy!

    regards,
    Bill Pringlemeir.

    This thread keeps going and going and going...

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