AnsweredAssumed Answered

GPIO Alternate Input

Question asked by gupta.avinash.001 on Jul 25, 2016
Latest reply on Jul 25, 2016 by Clive One
When we setup a GPIO pin for Alternate function, their is only option for Alternate function output. Even if some alternate functions are actually input to the peripheral (like USART_RX, Timer Capture Input etc). Even in those case we have to configure them like Alternate Output Pushpull type. Why?

It seems like if we make them alternate function pushpul and default ODR value is 0, then it will pull down the level on the physical pin.

Outcomes