Reload Verilog file in SimVision

Hello everyone,

I'm a new user to Cadence SimVision. I'm currently using VerilogXL with
an integrated SimVision.

When I make any changes to my Verilog files, I call SimVision for the
first time with the command line:

VerilogXL -s v_file.v v_testbench.v +gui

This verifies the Verilog files and calls the simulator. I do the
usual, select the waveforms I want to view, and run the simulation.
After I get the simulation results, I go back to my Verilog coding if I
encounter any errors in my simulation.

My question is: how do I make any changes in VerilogXL, and reload the
design in SimVision, and restart the simulation without having to close
SimVision, and restart the process all over?

I've been using Debussy previously, and this is the first time I'm
using Cadence SimVision, so any help/advice anyone out there can help
is greatly appreciated.

Thanks very much in advance.

Kind Regards,
Chloe

 

Use Simulation->Reinvoke simulator in simvision. I just checked to make sure
this works with verilogxl as well as ncverilog - and it does.

Andrew.

 

Hello Andrew,

Thanks for your suggestion. I actually tried using the "Reinvoke
Simulator" option in SimVision. The simulation restarts, but the
waveforms in the Waveform window disappear, and the results come back
"????".
I tried closing the Waveform window and reopening it, but the results
are the same. No waveforms.
What did I do wrong?
Please help. Thanks very much in advance.

Kind regards,
Chloe

 

No idea. What version are you using? It certainly didn't do what you
describe when I tried it.

I'd also take a look in the simulator log files to see if that shows up what
is happening...

I assume you re-ran the simulation after re-invoking?

Regards,

Andrew.

 

Hello Andrew,

The versions I'm using are:
- SimVision v5
- VerilogXL v5

Yes, I re-ran the simulation after re-invoking the simulator. The
waveforms not just did not reload, they disappeared altogether. The
values of all the signals became "????".
Here are the steps I took. Please let me know if I did anything wrong.

1. On Hummingbird xterm, I type "VerilogXL -s v_file.v v_tb.v +gui
2. VerilogXL verifies the RTL; if everything is okay, it calls
SimVision.
3. In SimVision Design Browser window, I select the signals which I
want to see simulated, and send them to Waveform Window.
4. I clicked on Simulation, and then Run.
5. The simulation runs and finishes. I perform changes to the RTL.
6. I click on Simulation -> Reinvoke Simulator.
7. The argument is still "-s v_file.v v_tb.v +gui". I re-invoke the
simulator using the argument.
8. When I clicked on Simulation-> Reinvoke Simulator, all the waveforms
disappeared, leaving behind only the signal names and its values (all
became "????").
9. I clicked on Simulation - > Run.
10. All the values are still "????". No waveforms.

The log files does not seem to be showing any abnormalities.
Please help if you can.
Appreciated

Kind regards,
Chloe

 

Hi Chloe,

Unfortunately I don't know why this is happening - I couldn't find records of
a similar problem (it's hard to search for this, unfortunately) - and to be
honest this is not really my main product area. If you're using LDV50, then
perhaps you might want to try a newer version (IUS54 is the current release)
to see if that helps?

Or contact customer support via your usual channel.

Regards,

Andrew.

 

Dear Andrew,

It's okay. Thanks for all help anyways. I'll ask around and try again.
Will let you know what the problem and the solutions are if I do find
it

Thanks again.

Regards,
Chloe