Problem with Cadence's SimVision

Hi,
I work on Cadence Desing Systems and SimVision doesn't simulate some of
my codes. In some cases bits and bit_vectors waveforms are
unknown - "???"
E.g.

process(X, Sel)
begin
for i in 0 to 3 loop
if i = Sel then
Y(i) <= X;
else
Y(i) <= '0';
end if;
end loop;
end process;

where X is bit, Y bit_vector, Sel integer.

Gietek

Gietek wrote:
> Hi,
> I work on Cadence Desing Systems and SimVision doesn't simulate some of
> my codes. In some cases bits and bit_vectors waveforms are
> unknown - "???"
> E.g.
>
> process(X, Sel)
> begin
> for i in 0 to 3 loop
> if i = Sel then
> Y(i) <= X;
> else
> Y(i) <= '0';
> end if;
> end loop;
> end process;
>
> where X is bit, Y bit_vector, Sel integer.
>
Did you run ncelab with '-acces +r' or +rwc?

-Eyck

Eyck Jentzsch

>>
> Did you run ncelab with '-acces +r' or +rwc?
>
> -Eyck
>

I always run "nclaunch" with no options as I was told to do so.
SimVision shows signals with "no values available" message.
This happens in some of my projects. Compilation and elaboration and
synthesis are successful. But not simulation

Gietek

Gietek wrote:
>
>>>
>> Did you run ncelab with '-acces +r' or +rwc?
>>
>> -Eyck
>>
>
> I always run "nclaunch" with no options as I was told to do so.
> SimVision shows signals with "no values available" message.
> This happens in some of my projects. Compilation and elaboration and
> synthesis are successful. But not simulation
>
If you are in nclaunch, goto Tools->Elaborator and check that the
spinbox 'Access visibility' is set to all.

-Eyck

Eyck Jentzsch

>>
> If you are in nclaunch, goto Tools->Elaborator and check that the
> spinbox 'Access visibility' is set to all.
>

It was set to 'All'.
But it doesn't matter now for I changed bit_vectors to std_logic_vectors
and signals are visible.
I think it's probably a bug in SimVision.

sav11 Z 2003/4