Gary Rubin

My experience with Gage (I was using a CS14200 board) is that they do not do double-buffering in their FIFO, like most A/D cards do. As a result, you cannot acquire data while you are busy offloading. This means that your acquisition software loop has to be MUCH leaner than with most A/D cards. I don't have the documentation with any more (it was delivered to the customer along with the system), but my recollection is that there was a graph somewhere which showed maximum PRF for a given sample rate and sample length. Of course, this would be a little different using the multiple-record feature. I also found that the Labview drivers that you can get from Gage were simply calling some pre-compiled higher-level functions. These were quite slow. I used my own calls to the DLL to DMA the data and rearm the card. The other weird thing I found (again, this was with the CS14200 board), is that it would always give me 12 more samples than I asked for. I hope this is helpful. Gary

Jeff, you don't even have to do it that way. Maybe this was what Michael was refering to... There's a probes directory in vi.lib where the conditional probes live as vi's. Modify one of them (say the I32 to be an I16), and then select it as your custom probe. Now you have a conditional I16 probe. No need to use a boolean conditional probe on another custom probe (if I'm understanding you correctly). Gary

Thanks, That's what I've been doing too. It would just be nice to not have to clutter up the diagram like that... Gary

Does anybody know why condional probes are available for U32, I32, and Double wires, but not for other data types? Does this limitation still exist in LV8? Thanks, Gary

What seems to be the symptom? Are you missing triggers? Overflowing a buffer on the board? I agree that it would help to know which board you're using. Does it have an onboard FIFO for data acquisition and transfer? Gary

Yes, right-click on the y-axis on your X-Y graph and select "Duplicate Scale". Show and expand your Plot Legend so that it shows all of your plots. Right click on each plot, select Y-Scale, and then select which Y scale you want that plot to be associated with. This also works on waveform graphs.