ADLINK PCI-9846 - Manual (Page 52)

42 Operation Theory
3.5.5 Post-trigger or Delay-trigger Acquisition with Re-
trigger
Use post-trigger or delay trigger acquisition with re-trigger function
to collect data after several trigger events, as illustrated in
Figure 3-16. You can program the number of triggers then the dig-
itizer will acquire a specific sample data each time a trigger is
accepted. All of sampled data will be stored in onboard memory
first until all trigger events occurred. Thus the time between last
sampled data and next trigger event can be only one clock period
of timebase. After the initial setup, the process does not require
software intervention.
Figure 3-16: Re-trigger Mode Operation.
Time
Operation
start
Trigger
Data
1st Trigger Event Occurs
N samples N samples
2nd Trigger Event Occurs