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Entry  Wed Mar 14 00:38:15 2018, Will Flanagan, sub-ms precision timestamps? 
    Reply  Thu Mar 15 08:44:26 2018, Stefan Ritt, sub-ms precision timestamps? 
Message ID: 672     Entry time: Thu Mar 15 08:44:26 2018     In reply to: 668
Author: Stefan Ritt 
Subject: sub-ms precision timestamps? 

Putting sub-ms precision into the header does not make sense, since the USB transfer only happens in time-slots of about 2 ms. To get better timing, you would need a hardware time clock in the FPGA, which does not exist right now.

Best,
Stefan

Will Flanagan wrote:

Dear DRS4 community,

Is there a way to extract timestamps with sub-ms precision? The milliseconds of an event is clearly given when unpacking the header. I would like to determine how far apart events are when they are within the same millisecond.

Thanks,

Will

 

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