Please provide the following info (tick the boxes after creating this topic): Software Version DRIVE OS 6.0.10.0 DRIVE OS 6.0.8.1 DRIVE OS 6.0.6 DRIVE OS 6.0.5 DRIVE OS 6.0.4 (rev. 1) DRIVE OS 6.0.4 SDK other Target Operating System Linux QNX other Hardware Platform DRIVE AG…

I am not just asking whether the Time event tsc: 63649624032 is nano sec. I mainly want to know the relationship between PTP2 clock and TSC clock.The nvidia drive OS develop docs says " PTP-TSC Sync:Orin SOC provides a hardware assisted mechanism to align/sync the TSC (clock/counter) with one of the…

How can I know the synchronization is success? Why I still got the same camera timestamps as before? Is there any steps I missed?

Dear @justin.fu , Are you using DRIVE AGX Orin devkit? Could you please file a separate topic and all the details?

[image] jing.ran: how can the number got from “ret = ioctl(fd, NVPPS_GETEVENT, arg_event);” prove that? So your ask is how you can confirm if the number you got is in PTP domain only?

not exactly, what we expect: after the PTP time synced to TSC clock , the TSC clock counter should have the same value as the PTP clock, so we can use the TSC timestamp in captured camera buffer as every frame’s capture PTP timestamp . Or if there is a relationship between TSC clock and PTP clock w…

[image] jing.ran: if there is a relationship between TSC clock and PTP clock which we can transfer TSC to PTP should also be fine As I understand, you want to get PTP timestamp in camera capture instead of TSC. Am I right? Are you using nvsipl_camera to capture camera frames?

yes I am using nvsipl_camera to capture frames, the prints like: Camera ID: 0; Frame Counter: 0; frameCaptureStartTSC: 33266287388;frameCaptureEndTSC: 33267066022 . So actually we just get TSC timestamps , but we need PTP clock timestamp.

[image] jing.ran: but we need PTP clock timestamp Does this topic still need support? You need to run ptp4l daemon to get PTP timestamp

I already run ptp4l to sync PTP time to MGBE2_0, SO my question is how to transfer the camera frame capture TSC timestamp( frameCaptureEndTSC: 33267066022) to PTP time zone?

What is the relationship between TSC and PTP timestamp

Autonomous Vehicles DRIVE AGX Orin DRIVE AGX Orin General

SivaRamaKrishnaNV February 21, 2025, 2:58pm 2

Are you asking if the returned values nano sec?

Note that TSC is monotonic clock. So it gets reset after every boot. When the synchronisation happens, the you get camera timestamps in PTP instead of TSC.

How to get camera EOF timestamp with ptp time domain on Drive Thor?

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What is the relationship between TSC and PTP timestamp

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