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Entry  Wed Oct 15 10:14:32 2014, Simon Weingarten, Clock settings in daisy chain DAQ 
    Reply  Wed Oct 15 10:52:58 2014, Stefan Ritt, Clock settings in daisy chain DAQ 
       Reply  Wed Oct 15 11:34:43 2014, Simon Weingarten, Clock settings in daisy chain DAQ 
       Reply  Wed Oct 15 12:15:58 2014, Stefan Ritt, Clock settings in daisy chain DAQ drs_exam_multi.cpp
          Reply  Fri Apr 17 10:07:38 2015, Simon Weingarten, Clock settings in daisy chain DAQ 
             Reply  Mon Apr 20 13:08:24 2015, Stefan Ritt, Clock settings in daisy chain DAQ 
Message ID: 387     Entry time: Wed Oct 15 10:52:58 2014     In reply to: 386     Reply to this: 388   389
Author: Stefan Ritt 
Subject: Clock settings in daisy chain DAQ 

Simon Weingarten wrote:

Hi,

I'm currently working on a little DAQ system with four DRS evaluation boards. Do i need to apply any specific settings when using the clock in/out connectors for synchronization? I do not see anything like that in the drs_exam_multi example.

Any help would be greatly appreciated!

Best,

Simon

Right, I did not yet put any code there. What you need on all slave boards is

b->SetRefclk(true);

b->SetFrequency(...);

Set SetFrequency() is needed to restart the boards with the external clock.

This works of course only if you have the clock signals connected as written in the manual. If not, the boards won't work after you switch the reference clock.

Best regards,
Stefan 

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