Xavier NX I2C Boot Requirement

Autonomous Machines Jetson & Embedded Systems Jetson Xavier NX
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1

Hello,

I am currently designing a carrier board for the Xavier NX. In the reference carrier board design, I see that I2C2_SCL/SDA are directly connected to an EEPROM which is unpowered during the power-on sequence. Is it acceptable to directly connect an I2C pair to a device which will be powered during the NX power-on sequence? For said I2C connection, I am planning to rely on the module’s internal I2C pull-ups.

Thank you for your time!

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The carrier power should be ON after module especially for the shared interface b/w carrier and module. So the I2C device better to be powered after module power-on.

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