Hi,
You can use the LPCOpen Software for the LPCXpresso LPC1769 board, LPCOpen is an extensive collection of free software libraries (drivers and middleware) and example programs that enable developers to create multifunctional products based on LPC microcontrollers. Access to LPCOpen is free to all LPC developers.
Please check the below link:
https://www.nxp.com/support/developer-resources/software-development-tools/lpc-developer-resources-/...
After download it, you will find some usb examples that you can use as reference.
Have a great day,
Sol
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