STM32H750 + USB3320 ( USB HS Device MSC )

[JLin.15]

Hello everyone,

Our custom board use STM32H750 + USB3320 as USB MSC Device.

Code reference MSC example and use st library except board specific part.

Some pcs of the custom board have USB packet timeout problem when copy lots of files.

I have no idea what's wrong, because the other pcs work fine.

Does anyone have any suggest for debug such issue ?

BTW, all pcs are produced by factory.

Thanks