When I probe the 3.3V pin on my Jetson Nano using a multimeter, I can only read a voltage of 1.8V. All of the gpio pins also have voltages in the 1.7-1.9V range. As far as I know, there is no way of shifting the voltage level on the Jetson Nano from 3.3V to 1.8V.
So my question is: is this a sign of hardware damage? Is there anything I can do to identify the issue, or should I just get a replacement?
Hi,
I am not sure what should be the voltage level, but checking the Jetson Nano Pinmux document (NV_Jetson_Nano_Module_Pinmux_Config_Template.xlsm), it indicates for most of the GPIOs: IO Block Voltage: 1.8V
Have you seen this forum: Jetson Nano Dev Kit GPIO Pin giving 1.8V output instead of 3.3V, maybe it can help you.
Thanks for your response! I definitely should have specified that I was measuring the voltages on the expansion header of the Jetson Nano developer board, which has the gpio pin voltages shifted up to 3.3V. I’m sorry I didn’t make that clear in my post.
I’m still having some trouble figuring out what to do after reading the other forum. What’s different in my case from the forum you linked is that header pin #1, the 3.3V supply pin itself also supplies 1.8V, not just the gpio pins. Does this mean there’s some damage in the carrier board and not the Jetson itself?
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