How do a sychronize PXI 4472 cards and stream to a 16 bit integer binary file

[Noddy the leprechaun]

I'm trying to synchronize two or more Pxi 4472 cards and stream the all the acquired data to a single binary file in interpretable form. I seem to be capable of synchronizing the cards but the data that is saved to file seems to be saved in blocks of 100 bits from each channel. However I am unsure of the reliability of this data and would appreciate some suggestion of how to save such data in a typical big endian multiplexed binary format? I have attach the program which I am using.

[SachaE]

Hi,
when you say synchronise, exactly what do you mean?
If you share a board clock from one to another, there's a physical path length that the signal has to travel, so the "slave" board will always have a fixed phase relationship to the "master's" clock.
Unfortunately, the 10MHz backplane clock of the PXI cannot be routed to the 4472 as a board clock, so the synchronisation you have is correct and as per the examples, but as long as you're aware of the fixed phase that should be OK, and it's measureable and fixed.

Now the binary data you're using the build array to take 2 lots of 2 D data and make a 3D data layout.
Reading this could be a little tricky. It might be better to concatenate the data (right click the build array and select concatenate) such that you end up with a 2D array say with the channels as the columns, and then the data going down. (you may need to transpose the data slightly)

Please let me know if that helps

Thanks
Sacha