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How to use USB_OE / USB Activate OE in STM32F0x2

Question asked by tong.derek.001 on Jul 2, 2014
Latest reply on Jul 3, 2014 by tong.derek.001
I am using STM32CubeMx for STM32F0x2. In "pinout" page, there is a checkbox called "Activate OE" in USB. It occupy an GPIO pin (e.g. PA15) if it is enabled.

What kind of function provided by "Activate OE"?

What is the recommended USB circuit if "Activate OE" is enabled?