Hi, I need to reconfigure the pinmux, But I’m little confused when I saw the block voltages for some of the GPIO pins are at 1.8 volts. Is it 3.3 volts for all the GPIO pins. Could anyone explain how this works?
Hi josephabrahamthomas,
Are you using the devkit or custom board for AGX Orin?
What’s the Jetpack version in use?
Normally, it may be 1.8V from the module and there might be level shift for them to 3.3V.
It can be configured through IO Block Voltage column in pinmux spreadsheet.
What’s your requirement? (1.8V or 3.3V)
Which pin would you like to control?
We are using devkit, and the jetpack version is 6.0.
What’s your requirement? (1.8V or 3.3V): 3.3 V
Which pin would you like to control?G4 Module pin (Pin 12 on 40 pin header)
So, when we checked th epinmux spreadsheet the IO block is showing 1.8V. here we got confused, will the GPIO 3.3 or 1.8?
It seems you want to control the following pin.
I’ve checked the pinmux spreadsheet and it would be 1.8V.
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Please refer to the AGX Orin design guide. The signal output from the module is 1.8V.
And AGX Orin Developer Kit Carrier Board Specification v1.2. Refer to Note 3, this signal is level shifted to 3.3V on the 40-Pin Expansion Header
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