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User name A. Camsonne
Log entry time 20:36:33 on November 11, 2010
Entry number 339611
keyword=Dead time at Trigger SupervisorOn attachement 1
On channel 1 the TS Busy on channel 2 the Front End busy being the or of the fastbus with the VME ADCs busy.
The front end busy is most often around 1 ms though the rate is only 20 Hz.
So it seems my buffering is not set correctly since the dead time should be of the order of the slowest module which is supposed to be the ARS, the logic module introduces 256 uS of dead time, so I am not sure what takes the busy around 1 to several milliseconds,
On attachement two the data transfer ( TI bit set to 1 a beginning of transfer and at 0 at the end ) This takes 1ms.
Channel 3 is ROC14, channel 4 is ROC 17 and channel 2 is ROC18 ( trigger board only ).
I could see the sync events light flashing so I think the TS is setup for buffering.
A copy of this log entry has been emailed to: rom@jlab.org,abbottd@jlab.org
Figure 1
Figure 2
