PA9 as VBUS sense of USB_OTG_FS (STM32F407)
Posted on August 24, 2017 at 15:33I played with PA9 on a DISCO-F4 board in its OTG_FS_VBUS function. This is a non-AF function, i.e. it's connected to PA9 all the time, and is supposed to be governed by USB_OTG_FS settings. I am not interested in OT...