clock accuracy (Jetson TX1)

Hello, Thank you always for a good reply.

I measured a sensor’s update rate using a jetson TX1.

=> Update rate[Hz] = 1 / (current time - previous time)

Suddenly, I was wondering.

Jetson TX1’s time is not correct without internet.

then, Does time related functions such as time.time()-Python3, clock_gettimer()-linux also become inaccurate?

Hi GSPark
How do you verify the accuracy? Could you have more detail information?

I received 20Hz GPS data through Jetson TX1.

When I receive 1 packet, I writing a timestamp every time.

however, Sensor’s update rate is jitter. (not accuracy)

Timestamp are attached.

GSPark
Could you try CLOCK_MONOTONIC or CLOCK_REALTIME

Hi GSPark,

Any update? Have you tried the suggestion?

Thanks