We are stuck trying to resolve the USB connectivity & packet loss issues we are having.
The problem surprisingly seems to be with the Orin AGX Developer Kit as we have had no issues on Xavier’s both with AverMedia & SeedStudio boards that we tested with JP > 5.
The JP 5.1 test described below was run on 2 different AGX devices with the exact same results.
All our testing was done with the AGX plugged into wall power with only one device connected to a USB port for testing.
Here is a description of the issue from Addison our ROS2 expert:
We have a problem related to the USB ports on Jetson AGX Orin Developer Kit (Jetpack 5.1 and Jetpack 5.1.1). When we connect a USB device (e.g. RPLIDAR S2, the standard LIDAR that runs in NVIDIA’s own Isaac Nova Orin Robot Isaac Nova Orin Compute and Sensor Solution | NVIDIA Developer) to the Jetson, it works normally 5 out of 10 times. When it doesn’t work normally, either:
The device does not start at all due to a connection timeout.
The device starts but data is lost in the transmission (i.e. packet loss).
The device starts and disconnects suddenly after 20-30 minutes.
We have tried the following approaches to try to solve the problem:
Tested the exact same hardware and software on a Jetson Xavier running Jetpack 5.1.1. Everything worked perfectly.
The issue may be in power supply. Probably the device requires high current while running. Please connect the device to a USB hub with external power supply, and then connect to AGX Orin developer kit. See if it is more stable when supplying external power to the device.
Our tests were run with the AGX on wall power.
Lidar was also plugged in to wall power via a USB charger and its USB data cable was connected directly to the AGX.
So can we assume that it proves it is not a power issue?
Please share more detail about the setup. Looks like there’s one AGX Orin devkit with Jetpack 5.1.1. And it is connected to a device with Isaac SDK through USB. AGX Orin devkit is in USB host mode and the device with Isaac SDK is in device mode. Please help confirm the setup. And it would be great if you can share a picture of the setup.
80.05 is the latest USB firmware. If the issue is still present with the version, it is more like another issue.
Indeed we have 80.5 nvidia@orin2:~$ sudo dmesg | grep Firmware
[sudo] password for nvidia:
[ 7.850622] tegra-xusb 3610000.xhci: Firmware timestamp: 2023-02-10 03:48:10 UTC, Version: 80.05 release
However I also see many errors in the log:
[ 370.003415] tegra210-adsp tegra210-adsp: Broken Path2 - FE not linked to BE
[ 370.010590] tegra210-adsp tegra210-adsp: ASoC: error at snd_soc_component_open on tegra210-adsp: -32
Continuous output of lines similar to the above.
What do they mean?