V G wrote:
> Routed: http://postimage.org/image/22sj7z32c/full/

That looks to be a two layer board.  Since it has lots of routing on both
layers, that means there won't be any ground plane.  That means the board
will be more susceptible to external noise, and will radiate likewise.
Since you don't have a ground plane, you need to be extra careful about the
ground current paths, make sure everything is locally well bypassed, and
hopefully hook up the ground with fat traces in a star configuration to the
extent you can manage.

On two layer boards of similar complexity, I try to keep all the traces on
the top layer and only use the bottom layer for short "jumpers" as needed.
That way the rest of the bottom layer can be a ground plane.  A good exampl=
e
of this is the USBProg.  The top side drawing is at
http://www.embedinc.com/products/usbprog/eusb3_top.gif, and the bottom at
http://www.embedinc.com/products/usbprog/eusb3_bot.gif.


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