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You can get tprtrig to trigger the EVR on a DAQ partition, then sleep, like so:
    $ tprtrig -t a -c 0 -o 1 -d 2 -w 10 -p 4 -z
programs EVR /dev/tpra (-t a) to generate a TTL trigger using logic channel 0 (-c 0) on output 0 (-o 1 [bit mask]) with delay of 2 119MHz clocks (-d 2) and width 10 119 MHz clocks (-w 10) for every L1Accept on partition 4 (-p 4). 

Generate 1Hz triggers on output 0 with a width of 54 nanoseconds, then sleeps.

    $ tprtrig -t a -c 0 -o 1 -d 1 -w 10 -r 6 -z