I have MCUXpresso itself, docs for SDK, LPC804, MCUXpresso, and the example 'lpcxpresso804_board_lpc_lpc_i2c_interrupt_b2b_transfer_master_0'. But can't find where in that project that the i2c is enabled, so I can port the functionality to my project. I have looked through in the MCUXpresso config perspectives, I just can't find it.