Content originally posted in LPCWare by nxpUSBlib team on Tue Aug 07 14:52:32 MST 2012
The problem with the CDC locking up has been resolved and will be in the next release of nxpUSBlib due out in October.
In the meantime, you can tell nxpUSBlib to use the built-in ROM drivers by setting USE_USB_ROM_STACK to 1 in nxpUSBlibConfig.h