I2c7: I2C transfer timed out; i2c bus no longer functional

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin Nano
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Board: Jetson Nano Application Processor (8GB RAM) and SOC Development Board (945-13766-0000-000‬)

We were testing several sensors with i2c bus 7 a few days ago and everything appeared to be functioning fine with the sensors showing up, and being capable of receiving and responding to commands.

We’ve tried again today and keep getting a slow scroll on i2cdetect and repeated “I2C transfer timed out” entries for i2c bus 7 (c250000). We’ve confirmed the sensors are functional and not causing issues as connecting them to i2c bus 1 works perfectly fine.

Support asked us to post a topic here to get verification of the issue from forum staff for requesting an RMA, but I’m happy to troubleshoot further as needed to try and get it working again.

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  1. Probe the i2c signal to confirm the signal is in right status.
  2. Reflash the system by sdkmanager.
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Hi ShaneCCC,

We’ve reflashed the system to a fresh SD Card with Jetpack 6.2, but still getting the same error. We’re waiting on a scope coming in to probe the i2c bus, and I’ll get back once we’ve got that!