05-31-2012 12:18 PM
Being used to LabVIEW, not sure how to interface to the C-series modules on my cRIO using CVI. The project I'm on needs to use CVI, and I have no idea how to interface to my cards -- e.g. writing to my DIO card or reading from an AI channel, etc.
In LV, it was easy and each I/O channel was simply a variable I could drop over to my block diagram and either read to write from/to. Any pointers in the right direction for this? I have the CVI real-time module and I know C, but never messed with CVI much.. I've searched and searched, but maybe I'm not searching right or something :/
How can I read from my NI-9221 card on, say, channel 0 and get a double back representing the voltage that's on that line?? That's the kind of stuff I'm looking for... in CVI?
06-01-2012 01:56 PM
06-07-2012 10:32 AM
To add to this, while it is true that you must use LabVIEW to program the FPGA itself, you are able to use C to interface the FPGA and acquire data, etc. Please see the FPGA Interface C API for the download and more information on this.
Hope this helps!