[Arm-netbook] rev0 a10 eoma68 board bringup

Dr. David Alan Gilbert dave at treblig.org
Sun Dec 23 12:48:31 GMT 2012


* luke.leighton (luke.leighton at gmail.com) wrote:
> On Sat, Dec 22, 2012 at 2:06 PM, Henrik Nordström
> <henrik at henriknordstrom.net> wrote:
> > lör 2012-12-22 klockan 10:08 +0000 skrev luke.leighton:
> >
> >> AH HA!  3.3V (off of EXTEN, pin 19 of the AXP209) only comes on for 1
> >> second then drops off.
> >
> > Sounds like overload protection kicks in.
> 
>  yeah.  the software which generated the gerbers had a couple of
> places where diagonal tracks had been overlaid by rectangular pads,
> the software didn't detect that the "clearing" either side of the
> diagonal track obviously needed to cut a corner off the rectangle, so
> it just... joined the two together, yaay!  it turned out to be 5V
> joined to GND.
> 
>  those two faults were found easily enough but this one's a bit more subtle.

Ouch; have you got the gerbers so you can play spot-the-short?

Are these on internal layers or the externals?

Dave
-- 
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    |       Running GNU/Linux       | Happy  \ 
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