Could not detect valid PTP time source at nvpps

Please provide the following info (check/uncheck the boxes after clicking “+ Create Topic”):
Software Version
DRIVE OS Linux 5.2.0
DRIVE OS Linux 5.2.0 and DriveWorks 3.5
NVIDIA DRIVE™ Software 10.0 (Linux)
NVIDIA DRIVE™ Software 9.0 (Linux)
other DRIVE OS version
other

Target Operating System
Linux
QNX
other

Hardware Platform
NVIDIA DRIVE™ AGX Xavier DevKit (E3550)
NVIDIA DRIVE™ AGX Pegasus DevKit (E3550)
other

SDK Manager Version
1.4.1.7402
other

Host Machine Version
native Ubuntu 18.04
other
Hi,

We recently stared our work on AGX - pegasus , we noticed few errors regarding PTP synchronization while executing Driveworks sensor samples , I have mentioned the error below we would like to know what the issues is and how do we resolve it.

Thankyou
Vimal

[24-03-2021 14:00:01] TimeSource: Could not detect valid PTP time source at nvpps. Fallback to eth0
[24-03-2021 14:00:01] TimeSource Eth: Lost PTP time synchronizaton. Synchronized time will not be available from this timesource.
[24-03-2021 14:00:01] TimeSource: Could not detect valid PTP time source at ‘eth0’. Fallback to CLOCK_MONOTONIC.

Hi @vimal.prasath ,

The messages are because of missing supported nvpps devices mentioned in DriveWorks SDK Reference: Time. Thanks.