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Scholar dwisehart
Scholar
5,276 Views
Registered: ‎06-23-2013

VIO outputs not using VIO_INST/inst/PROBE_OUT_WIDTH_INST

I use the VIO Wizard to create a VIO instance.  Then I generate the example program and try to implement it.  I see this error:

 

ERROR: [Opt 31-120] Instance 'VIO_INST/inst/PROBE_OUT_WIDTH_INST (vio_0vio_v3_0_probe_width__parameterized0)' has become an empty hierarchy during sweep, however it has constraints that do not permit its removal.

 

Fortunately for me, this is exactly the same error as I am seeing in my own project, even when I run the VIO outputs to package pins.

 

Has anyone else seen this?

 

Thanks,

Daniel

 

 

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2 Replies
Xilinx Employee
Xilinx Employee
5,190 Views
Registered: ‎09-20-2012

Re: VIO outputs not using VIO_INST/inst/PROBE_OUT_WIDTH_INST

Hi,

 

Can you attach project archive of your simple test case here?

 

Thanks,

Deepika.

Thanks,
Deepika.
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Scholar dwisehart
Scholar
5,180 Views
Registered: ‎06-23-2013

Re: VIO outputs not using VIO_INST/inst/PROBE_OUT_WIDTH_INST

Here you are.  

 

I did some more playing with the project and I thought the problem might be related to setting flatten_hierarchy to none, but I could not reproduce that with my bigger project.

 

Thanks,

Daniel

 

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