ZYuan,
In LabVIEW, open the Example Finder (Help » Find Examples...), click on the Search tab, and search for "burst". "Burst" should then appear in the keyword box. Double-click on it and you should get two examples, Burst Mode Ouput and Burst Mode Input. These examples came up in both LabVIEW 6.1 and 7.0 with NI-DAQ 7.
Also, here are the links to a couple of burst mode LabVIEW examples on the website:
Simultaneous Pattern I/O or Burst Mode I/O Using One 653x DeviceContinu
ous Digitial Input--Digital Data Logger You may also want to search for more example code on NI's support website at
http://www.ni.com/support.
I hope this helps you get started with your application, good luck!
RossC