Hello Bob,
Hope you are doing well.
The LPCOpen for the LPC1769 & LPC1788 has a USB host mass storage example that has fat32 option. You can refer to this for your application.In addition, I found some links that may help you as a reference from other customers who have also worked with this.
FAT library EFSL and FatFs port on NXP LPC1700
LPC1769 USB and FAT32
Unfortunately, we don't have files from a different webpage, hopefully someone else that sees your post might.
Best Regards,
Sabina
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