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Serial Voltage levels

Question asked by Karthik Sukumar on Aug 19, 2010
Latest reply on Aug 26, 2010 by bigmac

Hi guys,

 

I am having trouble with the serial voltage levels. I hooked up the CRO to the Tx pin and found that the low-level goes to about 1.8V and the high goes all the way to 3.3V, what do you think is the problem with the serial ?

 

I checked the ground and it seems to go to 0V

 

Cheers

Karthick

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