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Oscilloscope/Multimeter question

Posted by supremedalek 
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supremedalek
Oscilloscope/Multimeter question
June 10, 2011 09:30AM
If I pop open my dockstar and connect a scope between, say, TXD and GND, what should I expect to see? A signal that is most of the time around 3v and then it drops when it is doing something or what? What about RXD and GND?
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dpffan
Re: Oscilloscope/Multimeter question
June 10, 2011 09:16PM
TXD will be transmitting at these settings:

Speed: 115200
Data bits: 8
Stop bits: 1
Parity: none
Flow control: none

So the scope will plot the ASCII output of the serial console from uboot/linux kernel between 3.3V and GND accordingly.
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