I had the same issue with VCD. Encoding the waveform as GHW worked
perfectly, though I don't like the way GTKWave separates GHW signals to
browse them.

2010/6/21 <[email protected]>

> Hi there
>
> > I have a small design comprising of a DUT with FSM, TB driver with
> > FSM and ofcourse the toplevel TB itself.
> > The design is compiled with a similar make script as can be found on
> > http://mbmn.net/uer/tutorials/vhdl-with-ghdl/
> > I can not see any FSM state signal when gtkwave has started.
>
> the VCD format does not preserve state encoding information. If you
> define a new enumeration for your state encoding, you will not be able
> to see it. You should either define constants for each state encoding
> or use another waveform format (GHW maybe?).
>
> Kind regards
> Nikolaos Kavvadias
>
>
>
>
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>



-- 
Márlon Allan Lorencetti
LaPSI - Laboratório de Processamento de Sinais e Imagens
Departamento de Engenharia Elétrica - UFRGS

"In a free world with no fences or walls, why do we need Gates and Windows?"
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