getting two intensity graphs from the aquisition of one signal

[imados_xp]

Hello ,

I'm a newby in Labview and i'm using 8.6 .

I want to aquire continuously voltage and control it by a TTL signal , in the first rising edge , I aquire many samples of the voltage and put it in the first row of the array and stop in the falling edge , and in the next rising edge , start the aquisition for the first row of the second array , and so on ..

we have to do this until to reach 256 rows of each array , and so draw the intensity graph of the two arrays .

The TTL signal must be aquired using the PFIs and we have another TTL signal wich start in the begining of aquiring and wich stopped in the last row acuired .

ps : i need also to make an average of the aquired data in each row so that i get 256 or 512 values for each row of the array .

Thanks