FIFO is not shown

[DIDS]

Hi, I tried to include a program into the 802.11 Framework, that transmits MAC-addresses from a USRP to the host via FIFO. I looked at the Labview included FIFO examples and build something similar. I included successfully a Target to Host FIFO and could set a Write FIFO block to that FIFO. But I've got a weird problem on the host. When I tried to include a Read FIFO into the Host VI it couldn't find my created FIFO. In the Item tab it shows all FIFOs included previously in the resources file of the Framework, but my newly created isn't shown. Did I miss something? It irritates me, that I am able to find it in the FPGA VI, but not in the Host VI.

[AlexanderE · Accepted solution]

Hi!

There are a few steps to do.

First you have to change the build output:

1)On the left of your LabVIEW COMM should be your project files.

2)Double click on your Project. After that you should see a window with your pc and your device.

3)Click on the FPGA gvi so that on the right a menu appers.

4)Change Bulid Output to Bitfile.

Secondly you have to go to the "Setup DMA FIFOs gvi" and change the FPGA refnum:

1)Go to "Setup DMA FIFOs gvi"

2)Rightclick on the small blue curve over the typecast and click unbundle.

3)Click on the FPGA reference. On the right a menu should appear.

4)Click inside the menu on configure.

5)Click at "Import build spec".

6)Continue with ok.

And now your FIFO should be choosable.

Your FIFO wasn't visible before because LabVIEW references to the bitfile.

Your new created FIFOs weren't load to the bitfile till we changed.

Alexander E.

Applications Engineer

National Instruments