Modelsim SE 6.2c trying to use Xilinx ISE 9.1i simulation libraries... not working.

Hi All,

Hopefully this is a simple fix...
I complied Xilinx simulation libraries with COMPXLIB... and it seemed
to worked fine.
The modelsim.ini was changed to point to the new libraries. I checked
ModelSim to
see if xilinx libraries were in the library window (panel/tab), and
they were as expected.

When I start to compile my design, I see this message (not warning or
error):

# Referenced (but uncompiled) modules or primitives:
# 	IBUFG
# 	BUFG
# 	DCM

So it seem to compile file, until I try to simulate my design, I see
this error:

# ** Error: C:/XXX: Module 'IBUFG' is not defined.
# ** Error: C:/XXX:: Module 'BUFG' is not defined.
# ** Error: C:/XXX: Module 'BUFG' is not defined.
# ** Error: C:/XXX: Module 'DCM' is not defined.
# ** Error: C:/XXX: Module 'IBUFG' is not defined.

I cheked the UNISIM_VER library.. and I see all three modules... but
for some reason, the tool doesn't pick up the library.

I have "-y C:/Xilinx91i/verilog/mti_se/unisims_ver +libext+.v" but
this doesn't seem to work..
Under that directory... all i see are folders with
"@a@f@i@f@o36_@i@n@t@e@r@n@a@l" instead of seeing DCM.v or BUFG.v or
IBUFG.v.

any clue?

Thanks for reading this.
-Tony

On 7 Feb 2007 03:34:28 -0800, "Tony Thai" <tony.uniquify@gmail.com>
wrote:

>Hi All,
>
>Hopefully this is a simple fix...
>I complied Xilinx simulation libraries with COMPXLIB... and it seemed
>to worked fine.
>The modelsim.ini was changed to point to the new libraries. 

Which modelsim.ini?

Typically modelsim creates one in each working directory; that in force
when you invoked compxlib may NOT be the same as the one in your project
working directory.

You may need to edit the unisim library mapping into your project's
modelsim.ini, or even delete an incorrect one if you acquired the
project from somebody else...

- Brian

On Feb 8, 3:17 am, Brian Drummond <brian_drumm...@btconnect.com>
wrote:
> On 7 Feb 2007 03:34:28 -0800, "Tony Thai" <tony.uniqu...@gmail.com>
> wrote:
>
> >Hi All,
>
> >Hopefully this is a simple fix...
> >I complied Xilinx simulation libraries with COMPXLIB... and it seemed
> >to worked fine.
> >The modelsim.ini was changed to point to the new libraries.
>
> Which modelsim.ini?
>
> Typically modelsim creates one in each working directory; that in force
> when you invoked compxlib may NOT be the same as the one in your project
> working directory.
>
> You may need to edit the unisim library mapping into your project's
> modelsim.ini, or even delete an incorrect one if you acquired the
> project from somebody else...
>
> - Brian

Hi Brian,

Thanks for the help. I checked (by doing a search),  and I only have 1
modelsim.ini file under the install directory.

with the vlog command, do I have to use the "-y" or "-v" or some other
option to tell the tool to look for
the "Referenced (but uncompiled) modules or primitives" in the library
dir? It seems like I have to.. don't I.

If someone has used a xilinx modules, do you compile (vlog) with any
options? if yes, can you post an example.
if not, can you post what directory your unisims_ver libraray in your
modelsim.ini points to.

I want to compare if it is the same as mine: UNISIMS_VER = C:\Xilinx91i
\verilog\mti_se\unisims_ver

Thanks,
-Tony

just thought that I would post the solution for all those who might
run into the problem in the future.

when doing simulation use:

"vsim -lib work -unisim_ver <other options> <test bench module>"

to make it search for other compiled libraries other than default
(work)... eg when it says "Referenced (but uncompiled) modules or
primitives:"

hope this made someone's life easier.. =)