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LPC55S69 : GPIO pin state

Question asked by Eugene Hiihtaja on Jan 25, 2020
Latest reply on Feb 1, 2020 by Eugene Hiihtaja

Hi !


It is not so clear if it possible to read set state of GPIO pin what is configured as output.

I can configure Pin to output and set it to High level. But if due external shortcut, this pin is connected to ground,

by use PIN register I will read 0 state even I set it to 1.


From what GPIO register I can read output value if pin what was really set by software, but not real state what is on that pin ( e.g. as it read if it input ?)