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From: Michael on 15 Apr 2008 09:15
Howdy - I'm just getting started with FPGAs. In college I remember we
used ModelSim with ISE for FPGA simulation. We were able to get a
license through our school for free. Like a fool I no longer have that
license, so what free options are out there? I saw that there is
something called ModelSim Xilinx Edition III Starter (http://
www.xilinx.com/ise/mxe3/download.htm). I can't tell if that is just a
limited feature package, or a time limited package. Is that what I
want? Or is there something else I should be looking at?

Thanks!

-Michael
From: ghelbig on 15 Apr 2008 11:34
On Apr 15, 6:15 am, Michael <nleah...(a)gmail.com> wrote:
> Howdy - I'm just getting started with FPGAs. In college I remember we
> used ModelSim with ISE for FPGA simulation. We were able to get a
> license through our school for free. Like a fool I no longer have that
> license, so what free options are out there? I saw that there is
> something called ModelSim Xilinx Edition III Starter (http://www.xilinx.com/ise/mxe3/download.htm). I can't tell if that is just a
> limited feature package, or a time limited package. Is that what I
> want? Or is there something else I should be looking at?
>
> Thanks!
>
> -Michael

Google: It's not just for mail anymore: <http://www.google.com/search?
q=free+hdl+simulator>
From: Michael on 15 Apr 2008 12:26
On Apr 15, 11:34 am, ghel...(a)lycos.com wrote:
> On Apr 15, 6:15 am, Michael <nleah...(a)gmail.com> wrote:
>
> > Howdy - I'm just getting started with FPGAs. In college I remember we
> > used ModelSim with ISE for FPGA simulation. We were able to get a
> > license through our school for free. Like a fool I no longer have that
> > license, so what free options are out there? I saw that there is
> > something called ModelSim Xilinx Edition III Starter (http://www.xilinx.com/ise/mxe3/download.htm). I can't tell if that is just a
> > limited feature package, or a time limited package. Is that what I
> > want? Or is there something else I should be looking at?
>
> > Thanks!
>
> > -Michael
>
> Google:  It's not just for mail anymore: <http://www.google.com/search?
> q=free+hdl+simulator>

I'm aware that there are many free simulators out there - but do any
of them interface with ISE like ModelSim does?

Also, I noticed that there is also the ModelSim PE Student Edition. I
suspect I still qualify as a student - so maybe that is the best
choice?

-Michael
From: Kevin Neilson on 15 Apr 2008 12:25
Michael wrote:
> Howdy - I'm just getting started with FPGAs. In college I remember we
> used ModelSim with ISE for FPGA simulation. We were able to get a
> license through our school for free. Like a fool I no longer have that
> license, so what free options are out there? I saw that there is
> something called ModelSim Xilinx Edition III Starter (http://
> www.xilinx.com/ise/mxe3/download.htm). I can't tell if that is just a
> limited feature package, or a time limited package. Is that what I
> want? Or is there something else I should be looking at?
>
> Thanks!
>
> -Michael

The ModelSim starter is limited. I think the main limitation is that it
is programmed to get radically slower as the number of lines of HDL
increases. -Kevin
From: HT-Lab on 15 Apr 2008 12:43

"Kevin Neilson" <kevin_neilson(a)removethiscomcast.net> wrote in message
news:fu2ku0$aep3(a)cnn.xsj.xilinx.com...
> Michael wrote:
>> Howdy - I'm just getting started with FPGAs. In college I remember we
>> used ModelSim with ISE for FPGA simulation. We were able to get a
>> license through our school for free. Like a fool I no longer have that
>> license, so what free options are out there? I saw that there is
>> something called ModelSim Xilinx Edition III Starter (http://
>> www.xilinx.com/ise/mxe3/download.htm). I can't tell if that is just a
>> limited feature package, or a time limited package. Is that what I
>> want? Or is there something else I should be looking at?
>>
>> Thanks!
>>
>> -Michael
>
> The ModelSim starter is limited. I think the main limitation is that it
> is programmed to get radically slower as the number of lines of HDL
> increases. -Kevin


Starter edition slows down to 1% of PE (basically grinds to a halt) after
10000 lines (executable lines), below 10000 lines it operates at 30% of PE.

MXE3 edition operates at 40% of PE and slows down to 1% after 50000 lines.

There is no swift, mixed language or SystemC support in either version.

Hans
www.ht-lab.com






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