[Answered] Meaning of GPIO_PULLUP_PULLDOWN
Posted: Wed Nov 02, 2016 5:32 am
Looking at the GPIO API I see a function called gpio_set_pull_mode(). I'm wondering how to describe this function. For input, I can imagine no signal (floating input) being treated as high with "pull up" and low with "pull down". What then does the option GPIO_PULLUP_PULLDOWN mean?
Does this function have any semantics for GPIO pins flagged as "output"?
Does this function have any semantics for GPIO pins flagged as "output"?