Logging in Waveforms with AD3 saves different metadata on Windows and Mac version

[Artem Goncharuk]

Hi,

I'm using the Logging functionality in the Scope tab in WaveForms with AD3. When data are saved, meta-data for the date/time differs.

On Mac: the "Date Time" field records the end/stop time of the acquisition. 

On Windows: the field seems (?) to record the start time of the acquisition

This behavior is different when a demo AD3 device is selected in WaveForms. The date time is set to the end of the acquisition in this case (i.e. behaves differently from the real device)

1) What's causing these differences in behavior?

2) What is this value set to on the Windows version? (i.e. is my assumption about the 0 point correct?)

Thanks,

Artem

Edited September 29, 2023 by Artem Goncharuk

[attila]

Hi @Artem Goncharuk

I'm not sure what you are referring exactly, but there should be no difference when used under Mac, Windows and Linux
A screenshot would help to better understand the question.

For Demo and older device AD2,1... the capture date&time is a software stamp.
Newer device AD3, DigitalDiscovery, ADP3X50... have an "RTC" which stores the trigger time (T0) with system frequency resolution.
With this, each capture data&time has 8-10ns relative precision which can be used for more accurate measurements.