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USB flash memory and drive

Question asked by derklot.marcus on Sep 11, 2016
Latest reply on Sep 11, 2016 by Clive One
I hope I have an easy question. I would like to use an SD card together with my STM32F10x processor. The SD card should be used as an external flash memory.

However, when the PCB consisting of the SD card and STM32 is connected via USB to the PC, it should be shown as a USB flash drive.
And both, the µC and PC should have access to write / read files.

Is this posible with the processor type, and which mode is it?
And do I need OTG for this (specifically the F105/107)?