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analogue input digital output sync

Hello Everybody,
 
I am using labview 8.0 with a ni 6229 M serires card on Win XP. I woiuld like to aquire a signal which is a sine wave, using an AI port. Thereafter I would like to send a pulse train (TTL) at specefic phases of the sine wave using the digital counter. I would also like to be able to select every nth point in the same phase. i.e trigger every third peak for example. I am competent in AI aquisition and digital generation but would like to see how to combine them ? I would appreciate any help or advice.
 
 
 
Cheers,
Ala
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See following forum post:

http://forums.ni.com/ni/board/message?board.id=170&message.id=258950&jump=true#M258950
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