Am 29.12.2009 16:44, schrieb Chitlesh GOORAH:
> Hello there,
>
> I noticed that gtkwave cannot turn an analog signal / or a counter
> into an analog representation if the waveforms are generated for ghw.
> However if the same design is used to generate a VCD instead then this
> counter/analog signal can be viewed as an analog waveform on gtkwave.
>
> my settings :
> gtkwave-3.2.3-1.fc12.i686
> ghdl-0.28-0.131svn.1.fc12.i686
>
>   
I have almost the same installation.
It is possible to view analog waveforms with ghw files.

some examples are at:
http://www.dossmatik.de/vhdl.html

I can not say why you have this problem.
What type is you counter?

Rene Doss


> This reference design from Lattice can be used an example to reproduce
> this issue:
> http://www.latticesemi.com/dynamic/view_document.cfm?document_id=35763
>
> Is there any additional option required for viewing analog waveforms
> (.ghw) on gtkwave ?
>
> Thank you.
> Chitlesh
>
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>
>   


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