Content originally posted in LPCWare by jdupre on Tue Dec 03 14:29:03 MST 2013
From what I can tell, the LPCOpen libraries do not support the Secondary USB port on the LPC17xx parts. All the examples only reference the primary port. You will have to write new code or modify a lot of functions to reference the registers for the secondary port.
(See my post "Enabling both host ports?".)