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Need Help with USB MSC Protocol

I planed to use a Micron serial NAND chip to do a mass storage device. However, when I try to integrate the USB MSC code, the mass storage is unable to instantiate in my PC.

Using the logger module, I managed to log the process with my NAND chip and with the onboard 8MB flash for comparison.

These are the last few lines for the NAND chip, and the log stops here: image description

These are the same log msg for the onboard flash. The list continues, but as you can see there are difference: image description

What I don't understand is for the NAND flash, line 217 indicates that the system issues a READ10 command whereas such action is not observed in the onboard flash. Besides, the size from line 220 beyond is very large.

The NAND flash is tested individually with FatFs and it worked.

Anyone can help with this?

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