Some days before, there is a great post about LPC dual-core, LPC key feature_DualCore 

This time, we show a LPC5411x based dual-core example. It shows all aspects about dual-core development, startup, communicate, sync, mutex. Enjoy it:)

After extracted the attachement, it locates at "boards\lpcxpresso54114\multicore_examples\blinky\mdk\blinky.uvmpw"