Is there a limit to the number of variables that can access a host on the PXI-7831R or PXI-7841R controller.

What are the limits on the number of variables that can be transferred between the host controller and a PXI-7841R?  For example, I have several software and controls the status items that the host controller uses to communicate with the PXI-7841R.  These elements are not dependent on digital or analog i/o of the FPGA device.  Is there a limit?  Is there a specification of speed for this communication (by the number of input/output?).  Thank you.

Any control or indicator that you create in your FPGA LV code allocates space on the Xilinx FPGA. As with all coding, FPGA, there is no way to tell a 'limit' on the space. When you add several controls and indicators, your compilation will take more time and do different things to optimize where everything is stored on your FPGA. You can see the compilation report to see how much space you have left.

Regarding the speed of specs between the card and the host computer, which will just be specification 133.3 MB/s PCI - fresh general speed.

Tags: NI Hardware

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