When working on Exercise 3: Develop the Real-Time application on step 23 it asks you to connect the FPGA VI reference out on the case structure to the RT Sound.vi FPGA VI reference In terminal. However this will give you a broken wire with an error saying "You have connected two FPGA Interface Dynamic types with different configurations. "Direction"; is not avaliable.
Note: "Direction" in the error may also say "FFT FIFO".
In order to correct this error you will have to follow the following steps:
1) Create a control off of the FPGA VI reference in the RT Main.vi
2) Open up the RT Sound.vi and replace the FPGA VI reference with the control that you just created. This will make sure that the RT Sound.vi is expecting the same reference as the FGPA.vi.
Note: You will have to replace both the reference in and out of the RT Sound.vi
3) Make sure to rewire the connector pane to show the FPGA reference in and out
4) Save the RT Sound.vi
5) Now wire the FPGA VI reference to the RT Sound.vi
It should resolve the mismatch wire conflict.
Sarina
Applications Engineering
National Instruments
