Re: display of vcd dump files in electric

Ralf Derscheid <[email protected]> Mon, 7 May 2007 10:44:20 +0200
Newsgroups gmane.comp.cad.electric.bugs
Message-ID <[email protected]>
Dear Steven,

as mentioned before I highly appreciate that someone is spending
his precious time to code such things.

I will send a small example immediately.

Just one simple question in advance:

  I'm preprocessing my standard vcd files to make your tool
  capable of reading it.

  Do you accept any signal definition in addition to

         $var wire 1 #! my_signal $end

  ?

    Verilog & Modelsim use the statement input and output and the vcd 
spec mentiones
    much more like supply0 / supply 1.

    How can I distinguish the value "z" from the value "x" in the 
graphical display ?

    "1" is a top line, "0" is a bottom line, "x" and "z" are both a 
rectangular filled box. (all signals are red).


Best regards & thanks a lot




Ralf

P.S.

Please feel free to raise any question related to VCD or VCDE to me, as 
I'm used to work with these
files every day ;-)

  


Steven Rubin schrieb:
>
>> I highly appreciate that you have coded this nice tool,
>> as it allows me to show customers some diagrams without
>> requesting them to dive through endless listings.
>>
>> I could manage to convert a standard vcd file from verilog or modelsim
>> to be read into electric, but I could not manage to view the states Z 
>> or z
>> and maybe resistive 1 or resistive 0.
>>
>> Just a sample dump file holding the slang used to do this would be fine.
>
> The Electric VCD reader for Verilog output handles just 4 states: 0, 
> 1, X, and Z.  It does not handle "resistive 1" or "resistive 0".  I am 
> unfamiliar with VCD file syntax for those states.  If you have a SMALL 
> example file, please send it to me.
>
>    -Steven Rubin
>
>
>

-- 
 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

   NEC Electronics (Europe) GmbH

   Ralf Derscheid 
   Expert Assistant Manager
   Marketing Asic Solutions 
   Industrial & Distribution Business Unit

   Arcadiastrasse 10     Tel. +49-211-6503-1380
   D-40472 Duesseldorf   Fax. +49-211-6503-6380

 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ;-)