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short circuit effects on GPIO pins during mcu startup

Question asked by tag.aseok on Jan 29, 2017
Latest reply on Jan 30, 2017 by Clive One


What will happen to gpio pins that are connected to each other, during mcu startup and before their state is set (e.g input with pull up or output push pull) from excess current source/sink respective? is external pull up/down resistors necessary to avoid over current source/sinking for when the gpio state isn't set (startup, reset, etc)?