VCD file doesn't show anything in GtkWave
Chris Carlen
I have used Icarus Verilog 0.8.4 on Suse Linux 9.1 to create a .vcd file
from a testbench. The .vcd file is shown below.
I also installed GtkWave 3.0.29 and used the command:
> gtkwave dual-fps.vcd
to attempt to display the waveforms from my .vcd file.
GtkWave opens with a nice window and a time axis, but no waveforms. It
has a text box which states:
VCD loaded successfully.
[12] facilities found.
Regions formed on demand.
And another graphic box which is labeled "signals" which shows "time"
but not any of the other signals.
Is there something wrong with my .vcd file, or Gtkwave?
Perhaps if someone can make the .vcd file display in their viewer, or
alternately send me a .vcd file they know works in GtkWave, I can figure
out which end the problem is on.
Thanks.
-----------------------------------
dual-fps.vcd:
$date
Mon Jul 23 15:30:30 2007
$end
$version
Icarus Verilog
$end
$timescale
1s
$end
$scope module test $end
$var wire 1 ! fps1 $end
$var wire 1 " fps2 $end
$var wire 1 # mod1 $end
$var wire 1 $ mod2 $end
$var reg 1 % tim $end
$var reg 1 & trig $end
$scope module DFM1 $end
$var wire 1 $ Mod2 $end
$var wire 1 % Timer $end
$var wire 1 & Trig $end
$var reg 1 ! FPS1 $end
$var reg 1 " FPS2 $end
$var reg 1 # Mod1 $end
$upscope $end
$upscope $end
$enddefinitions $end
#0
$dumpvars
0&
0%
1$
0#
0"
0!
$end
#5
1!
1&
#6
1%
#10
0&
#15
1"
0!
1&
#20
0&
#25
0$
1#
0"
1&
#30
0&
#35
1$
0#
1&
#40
0&
#45
0$
1#
1&
#50
0&
#55
1$
0#
1&
#60
0&
#65
0$
1#
1&
#70
0&
#80
0%
#85
1"
1&
#86
1%
#90
0&
#95
1!
0"
1&
#100
0&
#105
1$
0#
0!
1&
#110
0&
#115
0$
1#
1&
#120
0&
#125
1$
0#
1&
#130
0&
#135
0$
1#
1&
#140
0&
#145
1$
0#
1&
#150
0&
#165
0$
1#
1&
#170
0&
--
Good day!
________________________________________
Christopher R. Carlen
Principal Laser&Electronics Technologist
Sandia National Laboratories CA USA
crcarleR...@BOGUSsandia.gov
NOTE, delete texts: "RemoveThis" and
"BOGUS" from email address to reply.
Petter Gustad
> Is there something wrong with my .vcd file, or Gtkwave?
Did you try to:
click on the + in the SST window
click on DFM1
select all the signal names which appered in the Signals window
click Insert
Looks fine in gtkwave on my machine.
Petter
--
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
Chris Carlen
> Chris Carlen <crcarleR...@BOGUSsandia.gov> writes:
>
>>Is there something wrong with my .vcd file, or Gtkwave?
Thanks for the reply.
> Did you try to:
>
> click on the + in the SST window
What is the SST window? Do you mean the zoom-in?
> click on DFM1
There is no reference to DFM1 in the GtkWave window.
> select all the signal names which appered in the Signals window
> click Insert
>
> Looks fine in gtkwave on my machine.
Interesting. Windows or Linux? Perhaps I will test a Windows version...
mk
<crcarleR...@BOGUSsandia.gov> wrote:
>Petter Gustad wrote:
>> Chris Carlen <crcarleR...@BOGUSsandia.gov> writes:
>>
>>>Is there something wrong with my .vcd file, or Gtkwave?
>
>Thanks for the reply.
>
>> Did you try to:
>>
>> click on the + in the SST window
>
>What is the SST window? Do you mean the zoom-in?
Let's get some layout decided. At the top left there is a window which
says "VCD loaded succesfully[12] facilities..." right? You're also
seeing a window which has a title "Signals" and the content "Time" at
this point from what you're describing. Now below "VCD loaded ..."
window and to the left of "Signals" window, you should see a window
which has SST in its title with a '+' to the left of SST string. If
you see this click on the '+' and you should see your hierarchy. If
you don't see the SST window, it's possible that your GTK+ setup is
broken and you don't the right GTK+ installed.
Uwe Bonnes
Another option might be Dinotrace...
--
Uwe Bonnes b...@elektron.ikp.physik.tu-darmstadt.de
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
Petter Gustad
> Interesting. Windows or Linux? Perhaps I will test a Windows version...
Linux.
Chris Carlen
Hi, and thanks for the reply!
1. I have the '"VCD loaded succesfully[12] facilities..."'
2. I have the '"Signals" and the content "Time"'
But,
>you should see a window
>which has SST in its title with a '+' to the left of SST string.
I don't see this!
I think the conclusion is that my GTK+ might be screwed. This Suse
Linux has been known to have a shoddy GNOME installation at times. So
perhaps the libs are just old, or Suse tinkered with them and broke it.
Thanks for the help.
It isn't worth any more time at this point. I may try Windows, or may
just live with the text output from the Icarus simulator (which is usable).
I'll try GtkWave again once I have a chance to update Linux.
Chris Carlen
>
> Another option might be Dinotrace...
Wow, that looks ancient! Haven't used any raw X apps in a while.
I'll give it a shot...
davem
wrote:
> mk wrote:
> > On Tue, 24 Jul 2007 13:25:33 -0700, Chris Carlen
> > <crcarleRemoveT...@BOGUSsandia.gov> wrote:
>
> >>Petter Gustad wrote:
> NOTE, delete texts: "RemoveThis" and
> "BOGUS" from email address to reply.
My version of GtkWave (3.81) doesn't show the Signal Search Tree (SST)
window by default either. You can bring it up by selecting Signal
Search Tree from the Search menu. Or you can use the shortcut Shift-
Alt-T.
When using GtkWave, I can't show up vhdl signals created from
enumerated types such as state vectors. I'm think older versions of
GtkWave did show enumerated types, but I'm not sure. Anyone else had
this problem?
Chris Carlen
> On 26 Jul, 15:37, Chris Carlen <crcarleRemoveT...@BOGUSsandia.gov>
> wrote:
>>mk wrote:
>> >you should see a window
>> >which has SST in its title with a '+' to the left of SST string.
>>
>>I don't see this!
>
> window by default either. You can bring it up by selecting Signal
> Search Tree from the Search menu. Or you can use the shortcut Shift-
> Alt-T.
Jeez. That's about the one button in the whole program I hadn't pushed.
Now I can see waves. Thanks!
--
Good day!
________________________________________
Christopher R. Carlen
Principal Laser&Electronics Technologist
Sandia National Laboratories CA USA
crcarleR...@BOGUSsandia.gov
bybell
> My version ofGtkWave(3.81) doesn't show the Signal Search Tree (SST)
> window by default either. You can bring it up by selecting Signal
> Search Tree from the Search menu. Or you can use the shortcut Shift-
> Alt-T.
1) Upgrade to the 3.x series. The latest is 3.0.30.
2) Make sure you are compiling against gtk v2.8 or higher. The
collapsing widget needed for the integrated tree doesn't exist in
earlier versions of the toolkit.
> When usingGtkWave, I can't show up vhdl signals created from
> enumerated types such as state vectors. I'm think older versions ofGtkWavedid show enumerated types, but I'm not sure. Anyone else had
> this problem?
Nothing changed in the viewer; perhaps the dumper in your vhdl
simulator did. To see enumerated types your dumper needs to support
it (e.g., using the "s" gtkwave extension for VCD) or you need to use
an external process/file filter that converts values to text strings.
See the pdf user manual for specifics.
-t
davem
> On Jul 26, 6:07 pm, davem <david.maccu...@googlemail.com> wrote:
>
> > My version ofGtkWave(3.81) doesn't show the Signal Search Tree (SST)
> > window by default either. You can bring it up by selecting Signal
> > Search Tree from the Search menu. Or you can use the shortcut Shift-
> > Alt-T.
>
> 1) Upgrade to the 3.x series. The latest is 3.0.30.
> 2) Make sure you are compiling against gtk v2.8 or higher. The
> collapsing widget needed for the integrated tree doesn't exist in
> earlier versions of the toolkit.
>
the SST widget now. Previously I was using the current stable debian
package version of gtkwave, which often isn't the latest.
> > When usingGtkWave, I can't show up vhdl signals created from
> > enumerated types such as state vectors. I'm think older versions ofGtkWavedid show enumerated types, but I'm not sure. Anyone else had
> > this problem?
>
> Nothing changed in the viewer; perhaps the dumper in your vhdl
> simulator did. To see enumerated types your dumper needs to support
> it (e.g., using the "s" gtkwave extension for VCD) or you need to use
> an external process/file filter that converts values to text strings.
> See the pdf user manual for specifics.
>
> -t
I think your right, the problem is likely related to the older version
of ghdl (the vhdl simulator I am using) which again is the debian
stable version. Converting the enumerated types to strings sounds like
a good idea. Thanks for the heads up, I will take a glance at the
gtkwave user manual.
Dave