I am curious how to determine what voltage is acceptable to connect to a micro-controller through a resistor.
From the data sheet the highest voltage on a GPIO is 3.8V.
So If I have 5 Volts going through a.... lets say 1M resistor to the 3.3V input pin is this ok?
Clearly there is a internal resistor and some voltage drop will occur, but the datasheet does not seem to come out and say it.
I haven't found the internal resistor for the micro-controller so I am curious if I am looking for the correct value...
I am using the CC3200 from TI