I imported the project in MCUXpresso from the LPCOpen archive for LPC1343, compiled it and flashed it... nothing happends... after launching i see no activity on SCL/SDA pins, I get nothing on the UART output.
To enable the UART messages you would need to enable first the debug mode.
In the proyect properties -> C/C++ Build-> Settings ->Preprocessor. Add a new define that says :"DEBUG_ENABLE" with this you will enable the UART commands. Do the same in the lpc_board_nxp_lpcxpresso_1347 project.
If you want to see it in a terminal console in your PC, connect an USB to serial in the P0_19 and P0_18. With this you will see the DEBUGSTR in the console.