Start a counter from a trigger

Hello,
I've a 6023E
I'd like to :
    1) detect a trigger T1
          2) count N trigger T2
          3) generate a TTL (one pulse)
    loop to 1)
So, I'm looking for a way to run a counter on a front edge of a signal T1 (fast and slim)
Then, I've to count N front edge coming from T2 (very fast and slim)
generate a TTL signal on a DIO
reset the counter to zero
then loop
The best way to do that should be to arm a counter to a given value, and at each pulse T2 to decrement this counter. When it reaches 0, it generates a TTL signal, the counter is reinitialized to the good value and wait for T1
seems easy but...

Kevin,
at first, thanks for your advices.
I check the various signal with a classic osciloscope. I trig on T1, I visualize the T2 and the pulse I generate via LabView. In such way, I can see that my pulse occure in two different positions. I can count the T2 pulses on the scope screen. I note that the generated pulse is larger that the T2 triggers (about 2 pulses, which seems OK because I generate 2 ticks as you said).
I've said something wrong : the number of ticks between the 2 "stable" position varies among the velocity of the rotation. Its about 1,2ms.
I join my program at this message.
I've trie to put a delay in the loop, the result is the same. It's true that the delay I've trie was very short (about 10 ms) with the metronome icon (wait until next 10ms perhaps, I don't remember the name).
Christophe
Message Edité par c.r. le 10-25-2006 05:34 AM
Attachments:
DecaleTriggerConvertible.vi ‏44 KB

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