Lpc2000

Are you referring to D1, at the top from the +5V_USB to the regulator?  The 
purpose of that is to prevent the wall port from giving power to the USB 
line.  What do you mean "enough to make it safe?"

At 07:51 PM 1/5/2006, you wrote:
>I was wondering, on the Olimex LPC2148 demo board, if it could be
>powered from a wall wart and have the USB connected.  I see a diode
>there in the 5V line from the USB, is that enough to make it safe?
>
>Thanks,
>
>Vern