Jetson Xavier i2c bus 1(pin 27,28) and bus 8(pin3,5) stopped working

I have a Jetson Xavier Agx Developer kit connected to an arduino mega for i2c connection. All of a sudden, the jetson is no longer detecting i2c connection. Initially the issue appeared on bus 8, where the jetson was connected for the longest time, thereafter I switched the connection to bus 1 as I could not resolve the issue on bus 8.

Doing sudo i2cdetect -r - y 1 or sudo i2cdetect -r -y 8 does not show device in the list anymore. I have teste the i2c line with other devices as well, and seems the issue is on the jetson’s side.

@Trumany
Please help to give advice for this topic.

Thanks

It looks like the I2C port has issue. Please use a scope to check the signal waveform of the I2C port. If no output, it may be a module issue.

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