Hello,
Please provide a full description of the issue.
Which software tools are you using? e.g., VisualDSP++, CrossCore Embedded Studio? Are you using the stack as is or did you make modifications?
Are you using your own custom board or the Ezkit?
What memory flash device are you using? Is it bus powered or self powered?
Do you see the issue with other USB memory devices?
Regards
Jorge