Please provide the following info (tick the boxes after creating this topic): Software Version 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 AGX Orin Developer Kit…

Dear @collin.day , devmem2 is linux command to read/write value from/to any register. Please see Ubuntu Manpage: devmem2 - simple program to read/write from/to any location in memory

Dear @collin.day , [image] collin.day: how do you access the TSC at any given time? Is it like you want to know TSC value using come command at a given instance?

If not ioctl call, you can check accessing register value to find TSC value. Does that work for you?

That would work - what is the register address of the TSC?

Dear @collin.day , high & low TSC tick value store at different register. find them using below registers. devmem2 0x0c6a0010 —> A devmem2 0x0c6a0014----> B Current TSC tick is A + (B << 32) . Each TSC tick is 32ns.

What is devmem and how do I read from it? I don’t see it in the docs at all.

Ohhh - ok - it isn’t a sipl or /dev device entry. Makes sense. Thanks.

TSC timestamp when nvpps is disabled or ptp is not synching

Autonomous Vehicles DRIVE AGX Orin DRIVE AGX Orin General

collin.day April 4, 2024, 4:31pm 5

More like - as an example - is the C++ steady_clock an interface to the TSC?

Metadata indicates 7+ seconds image latency

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TSC timestamp when nvpps is disabled or ptp is not synching

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