ModelSim Newbie , Need Help in Simulation

#1 08-25-2008, 12:39 PM

Hi,

I'm new to testbenches so I set a goal to get some examples
to work under ModelSim PE Student Edition 6.4.

I'm trying to do the simplest of things - to simulate a vhdl file.
However once compiled, I have no objects hence nothing that can be added
to the waveform.

I get no errors at all, just no objects after I compile. I see the file
under my library, I can click on the testbench file and it opens
in SIM but objects window is simply empty.

Please Help !!!

#2 08-25-2008, 01:36 PM

KellyB wrote:
> Hi,
>
> I'm new to testbenches so I set a goal to get some examples
> to work under ModelSim PE Student Edition 6.4.
>
> I'm trying to do the simplest of things - to simulate a vhdl file.
> However once compiled, I have no objects hence nothing that can be added
> to the waveform.
>
> I get no errors at all, just no objects after I compile. I see the file
> under my library, I can click on the testbench file and it opens
> in SIM but objects window is simply empty.

I don't recall ModelSim exactly, but in ActiveHDL there is a view of
files and a separate view of the compiled entities. Can you see any
tabs for a different view or is there another window you can open?

Rick

#3 08-25-2008, 03:28 PM

rickman wrote:
> KellyB wrote:
...snip..

>> I get no errors at all, just no objects after I compile. I see the file
>> under my library, I can click on the testbench file and it opens
>> in SIM but objects window is simply empty.
>
> I don't recall ModelSim exactly, but in ActiveHDL there is a view of
> files and a separate view of the compiled entities. Can you see any
> tabs for a different view or is there another window you can open?
>
> Rick

Thanks for the reply.
After some tinkering , i've managed to obtain the compiled objects but
now i have a different problem.

# Compile of test.v was successful.
vsim test.v
# vsim test.v
# ** Error: (vsim-19) Failed to access library 'test' at "test".
# No such file or directory. (errno = ENOENT)
# Error loading design

Can anyone using ModelSim Please help ?

#4 08-25-2008, 04:16 PM

On Aug 25, 10:28*pm, KellyB <kel...@gmail.com> wrote:
> rickman wrote:
> > KellyB wrote:
>
> ..snip..
>
> >> I get no errors at all, just no objects after I compile. I see the file
> >> under my library, I can click on the testbench file and it opens
> >> in SIM but objects window is simply empty.
>
> > I don't recall ModelSim exactly, but in ActiveHDL there is a view of
> > files and a separate view of the compiled entities. *Can you see any
> > tabs for a different view or is there another window you can open?
>
> > Rick
>
> Thanks for the reply.
> After some tinkering , i've managed to obtain the compiled objects but
> now i have a different problem.
>
> # Compile of test.v was successful.
> vsim test.v
> # vsim test.v
> # ** Error: (vsim-19) Failed to access library 'test' at "test".
> # No such file or directory. (errno = ENOENT)
> # Error loading design
>
>

>
> Can anyone using ModelSim Please help ?

Did you save your verilog or vhdl file under the working directory.
If not thn do it, hope it will solve the problem

#5 08-25-2008, 11:18 PM

smqasim wrote:
> On Aug 25, 10:28 pm, KellyB <kel...@gmail.com> wrote:
>> rickman wrote:
>>> KellyB wrote:
>> ..snip..
>>
>>>> I get no errors at all, just no objects after I compile. I see the file
>>>> under my library, I can click on the testbench file and it opens
>>>> in SIM but objects window is simply empty.
>>> I don't recall ModelSim exactly, but in ActiveHDL there is a view of
>>> files and a separate view of the compiled entities. Can you see any
>>> tabs for a different view or is there another window you can open?
>>> Rick
>> Thanks for the reply.
>> After some tinkering , i've managed to obtain the compiled objects but
>> now i have a different problem.
>>
>> # Compile of test.v was successful.
>> vsim test.v
>> # vsim test.v
>> # ** Error: (vsim-19) Failed to access library 'test' at "test".
>> # No such file or directory. (errno = ENOENT)
>> # Error loading design
>>
>>

>>
>> Can anyone using ModelSim Please help ?
>
> Did you save your verilog or vhdl file under the working directory.
> If not thn do it, hope it will solve the problem

Thanks rickman and smqasim (I'm Sorry I don't know the names) for the
reply. I've managed to pin down the issue. Its working fine now.

Thanks Again

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