2017-02-23 7:55 GMT+01:00 John Syne <[email protected]>:

>
> Well, at some point they are always connected. What you want is for them
> to connect only at one point and that point should be closest to the power
> source. Think of a star connection, with the center of the star as the
> reference ground point. What you don’t what is digital signals flowing
> through the analog ground and that occurs when you connect AGND to DGND at
> more than one point.
>

So when I understand this correctly: in layout of a board they should be
connected with each other as close as possible to the BBB/BBG expansion
header connector?

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