Sounds like the board has been damaged and needs to be repaired.
Gerald
On Sun, Jul 12, 2015 at 9:37 PM, j...@b-wells.us wrote:
I gather the BBB can be powered either by USB or by 5VDC, but not both.
So I don't understand. My BBB does not power up at all with 5VDC
connected. As soon as I connect USB, however, it boots right up.
Meanwhile, I have a cape (CBB-Relay) that requires 5VDC. It doesn't work
unless I then connect both USB and 5VDC.
As I've read more than once, it can be powered either by USB or by 5VDC.
But what am I supposed to do when I need to power it by 5VDC to get the
cape working, /and/ I want to be able to use the USB connection for
development?
If I've fried my BBB while trying to figure this out, why would it work at
all with both 5VDC and USB connected (realizing that it can be powered
either by USB or by 5VDC, but not both)? It works just fine, and in fact
the only way it works, is if I connect both 5VDC and USB.
What am I missing?
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Gerald
ger...@beagleboard.org
http://beagleboard.org/
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