Content originally posted in LPCWare by dudmuck on Fri Jul 16 16:26:04 MST 2010
It seems my problem was feeding DC power into a 3v3 pin.
I tried feeding 5v dc power into J6-2, and all is fine with LPCexpresso running by itself. I did not need to flash the board outside of eclipse, only debug it from release build and then disconnect.
However under this condition of feeding DC 5v to j6-2, the LPC-Link side seems to be running without usb connection. But it appears to be no problem since its not doing anything to jtag signals.
This might be something useful to document for others who want to run LPCExpresso (by itself) without debug connection.