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'Wait' and 'Count' function blocks disapear on FPGA code

Hello, 

The issue is shown on the picture below. All clock icons on the block diagram of the FPGA target transformed into '?'. After it was replaced with correct 'wait' and 'count' blocks and the code worked fine. But after some time this issue happend again. Anybody have an idea what can be reason of such behavior of LabView developement system?

 

M_S__0-1604328188102.jpeg

 

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Message 1 of 7
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Never seen that before.  Did you do something different?


Certified LabVIEW Architect, Certified Professional Instructor
ALE Consultants

Introduction to LabVIEW FPGA for RF, Radar, and Electronic Warfare Applications
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No, I have changed settings of one FIFO DMA and thats all. What's more, some of WAIT functions were replaced with COUNT and vice versa. I wasn't touching fpga for some time, then changed FIFO settings, wanted to change it back and then this problem occured.

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Here is an example of this change. This use to be wait function.

M_S__0-1604331213359.png

 

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Are you using source code control?  Reverting back could save the headache.

 

If you are able to reliably recreate this, I'd report it to NI as a bug.

 

BTW, which version of LabVIEW are you using?


Certified LabVIEW Architect, Certified Professional Instructor
ALE Consultants

Introduction to LabVIEW FPGA for RF, Radar, and Electronic Warfare Applications
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I will try to revert.

I am using 2019 version.

To recreate this I have to replace all timer functions with proper one, compile program, then connect with cRIO, run program on it and then open FPGA main.vi. I already did it second time and same problem occured.

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ouch!  Yes, please report to NI as a bug especially since 2019 is considered recent.


Certified LabVIEW Architect, Certified Professional Instructor
ALE Consultants

Introduction to LabVIEW FPGA for RF, Radar, and Electronic Warfare Applications
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