application migration from PXI-6251 to PXI-7833R

[granix]

I having problems on migrating my currently application from using PXI-6251 to PXI-7833R. in current application which using PXI-6251, i using DAQmx for my aquisition. But then i learn that i need to create a project and add a FPGA target ( which is 7833R ) while adding I/O. So now problem is how to aquire signal from and output signal to 7833R using FPGA module  ? i had tried adding existing VI under FPGA target but DAQmx doesnt work.

Did i done the wrong thing in creating projects as i read it from labview help, or there is other ways to use 7833R with minimum modification on the block diagrams ? Anyone please help out on this problems, Thanks a lot.

[Donovan_B]

Hi granix,

You are correct that you will need to create a LabVIEW Project and add an FPGA target to that project in order to use the PXI-7833R as stated in the LabVIEW Help for Configuring FPGA Targets.  Because FPGA code is strictly run in hardware once the code has been compiled and the bitfile has been deployed to the FPGA, there are no drivers on the FPGA itself.  This is why your DAQmx code will not work with your FPGA target.

In order to perform input and output using your PXI-7833R, you will need to create some FPGA I/O elements and an FPGA VI under your target.  You can then use the FPGA I/O Node on the Block Diagram of your VI to perform input and output with your PXI-7833R.

The Getting Started With LabVIEW FPGA 8.x article in our KnowledgeBase is a great place to find tutorials and tips on using LabVIEW FPGA.  You can also use the shipping examples in LabVIEW to find example programs using FPGA.  To access these in LabVIEW, go to Help » Find Examples… and then expand the Hardware Input and Output directory.  There is a directory of examples for R Series that you can expand and it has Basic I/O example programs as well as more involved, application-specific examples.