Anyone done a pendrive reader on an ATSAM4L MCU?

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Has anyone here ever done a circuit that access files on a USB FLASH drive for an ATSAM4L MCU?

 

I'm trying to do it using the USBC host driver provided by Atmel on Atmel Studio 7 (7.0.1645), and it works for most part. But eventually when plugging/unplugging the pendrive, the USBC driver will simply stop working, returning only after a MCU reset.

 

So my first question is: Has anyone done it and it works without issues?

Thanks in advance