Dan Drown <dan-...@drown.org>:
> >Eric: Please plug your 701W into your Pi with HAT and collect some data.
>
> Here's 7 days worth of data:
>
> https://dan.drown.org/rpi/usb-vs-gpio-pps.html
>
> The Rapsberry Pi 2's GPIO-PPS based local clock offsets at 0.1 percentile
> and 99.9 percentile were -3.61 microseconds and 4.13 microseconds.
>
> The Raspberry Pi's USB-PPS based local clock offsets at 1 percentile and 99
> percentile were -582.97 microseconds and 539.08 microseconds.
Dan and Hal, how do you interpret those results? I would naively suppose
that the listed fudge should be the mean of each distribution (assuming
it looks Gaussian) and thius the arithmetic average of those pars
- am I missing anything?
--
<a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>
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