How do I read a data if all of the GPIOs are in output mode.

Andrew asked Dec 09,2020
0

I'm trying to implement an LCD driver. All my pins have been initiated as GPIO output mode. My question is, how do I read a data if all of the GPIOs are in output mode? I mean, we can always change the GPIOs to input mode for that time being, but the code examples I saw from a few different places never changed their GPIO modes.

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