How to Change Digital Logic Level on PXIe and PCIe R Series Board?

Updated Nov 1, 2023



  • PXIe-7820
  • PCIe-7820
  • PXIe-7822
  • PCIe-7822
  • PXIe-7847
  • PXIe-7857
  • PCIe-7857
  • PXIe-7858
  • PCIe-7858
  • PCIe-7846
  • PXIe-7846

The specification of my FPGA R series board specifies that the logic level for the selected connectors can be set as 3.3V, 2.5V, 1.8V, 1.5V, or 1.2V. How can I adjust the logic level on my FPGA  R series Board?

First of all,  please refer to R Series Help to make sure whether the digital logic levels can be changed on your R series boards. You can follow the following steps to adjust logic levels on the PXIe or PCIe R series Board.

1.  In LabVIEW project, right-click on the FPGA Target and select Change I/O Configuration... to open the Configure R Series I/O dialog box.

2. In the Configure R Series I/O dialog box, select the Digital Connectors that you would like to change the logic levels for. Use the Shift and Ctrl keys to select multiple channels at once.
3. Select the logic level you would like to use from the Logic Family pull-down menu.

4. Click OK.

Additional Information

FPGA PXIe R Series cards do not support programmatically changing the logic family with the FPGA property nodes.