Thank you very much for your response.
Excuse me for my very stupid confirmation.
If I take N events finally and the hardware scaler value is M, the livetime is realtime*(N/M). Is this correct?
The one thing you can do easily is to look at the scaler values. If one channel counts all physical events, and you have all read out events, then the ratio give you the live/deadtime. The hardware scalers also keep running during the DRS readout.
I would like to use the DRS4 evaluation board for actual physics experiment.
I made a CUI script based on the drs_exam, https://github.com/mzks/drs4_tools/blob/main/build/source/drscmd.cpp.
In this framework, how can we obtain DAQ livetime (or deadtime)?
Has some function already provided to evaluate them from firmware?