Complete the following steps to reserve a trigger line for a PXI device.

  1. Place the Open FPGA VI Reference function on the block diagram and configure it for the FPGA device and FPGA VI.
  2. Place the Invoke Method function on the block diagram.
  3. Wire the FPGA VI Reference Out output of the Open FPGA VI Reference function to the FPGA VI Reference In input of the Invoke Method function.
  4. Wire the error out output of the FPGA VI Reference function to the error in input of the Invoke Method function.
  5. Click the Invoke Method function and select Reserve PXI Trigger from the shortcut menu.
  6. Right-click the Trigger input and select Create » Constant. An enum constant is created to help you select the trigger.

    To reserve multiple trigger lines, repeat steps 2 to 6 for each trigger line you want to reserve, wiring the FPGA VI Reference Out output of the existing Invoke Method function to the FPGA VI Reference In input of the Invoke Method node that follows it.