CLash of usb VBUS and uart 1TX

[shingadaddy]

Posted on November 22, 2016 at 23:48

If you have the uart1 configured and enabled, which uses pin PA9 as uart1TX

and you apply 5VDC onto that same pin from an external USB host trying to use PA9 as VBUS sense pin, does it damage the part?

Thanks

STM32L476

[shingadaddy]

Posted on December 07, 2016 at 15:39

No...