Looks like C1 is not gated by the 3.3V rail from the BBB connectors.

.
Gerald


On Mon, Sep 15, 2014 at 1:54 PM, <[email protected]> wrote:

> Hello all,
>
> I urgently requesting your support! I am desperate!
> I am currently developing a radio cape which has two Atmega328p, 3xRFM69
> radio modules and some other small things on it. You can find the circuit
> in the following link:
>
> https://drive.google.com/file/d/0B8Fq4yYMgG7uQ3k3WkJUbG9icWs/edit?usp=sharing
>
> When I use this cape on by BBB, the Beagle stopped working during
> operation. I tried to reboot it but it now do not boot up like the issue
> described in the Beagle Wiki as "Improper Power Down". I never unplugged
> the power cord from the board. It just stopped working.
> When the cape is connected to the beagle the components are sourced by
> VDD_3V3Exp and VDD_5V. So no external power supply. I additionally just
> have the Uart4/5 connected to my circuit....
>
> I would really appreciate your help. Because I really do not understand
> what the matter is!
>
> THANKS A LOT!
>
>
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