Designer’s Guide Community

tideblue New Member Offline Posts: 8	Post-layout simulation Aug 21^st, 2009, 2:05am Hello, I have finished the Calibre PEX and successfully extracted the netlist. But I do not know how to use the new netlist to run the post layout simulation I tried to google it but seems there is no up-to-data guide on Cadence 6.1 Anybody could give me a guide? Thanks!
Back to top	IP Logged

Andrew Beckett

Senior Fellow

Offline

Life, don't talk to
me about Life...

Posts: 1742
Bracknell, UK

Re: Post-layout simulation
Reply #1 - Aug 21^st, 2009, 3:21am

There should be the ability to output a "Calibre Extracted View" from Calibre PEX. This will create a netlistable view alongside your schematic and layout in the database, and then you can use the hierarchy editor to pick the Calibre Extracted View instead of your schematic - you then simulate the configured testbench.

This is much simpler than trying to include an extracted netlist, and having to get the pin orders to match up, and so on.

Regards,

Andrew.

Back to top

IP Logged

tideblue New Member Offline Posts: 8	Re: Post-layout simulation Reply #2 - Aug 21^st, 2009, 7:11am Thanks for your reply. After I generate the calibre view and I tried to insert it in simulation there is a error message as: "Cannot initiate calibre view"
Back to top	IP Logged

ywguo Community Fellow Offline Posts: 943 Shanghai, PRC	Re: Post-layout simulation Reply #3 - Aug 24^th, 2009, 10:10pm Hi tideblue, Quote: After I generate the calibre view and I tried to insert it in simulation What do you mean by "insert it in simulation"? I don't know the reason why you have such an error message. Did you setup a config view using hierarchy editor? BG Yawei
Back to top	IP Logged

tideblue

New Member

Offline

Posts: 8

Re: Post-layout simulation
Reply #4 - Aug 25^th, 2009, 12:55am

What I did by now is
1 in the Calibre setting I selectedCalibre-->outputs-->SVDB-->Generate Calibre connectivity interface data, start RVE after PEX, Generate cross reference data for RVE, then after Calibre I can generate a Calibre view with the default setting. In the mean time three files are also generated" *.pex.netlist, *.pxi, *.pex.netlist.pex
2 in the top level simulation setup, �I created a new "config" .And I set the one which is layouted to the "instance view-->calibre"
3 Then I choose "OPEN" in the hierarchy editor and start simulation.
What I see now is that the post simulation result is exactly the same as previous simulation
I doubt my layout is that good

Back to top

« Last Edit: Aug 25^th, 2009, 2:58am by tideblue »

IP Logged

Andrew Beckett Senior Fellow Offline Life, don't talk to me about Life... Posts: 1742 Bracknell, UK	Re: Post-layout simulation Reply #5 - Aug 25^th, 2009, 9:27am Sounds reasonable. Probably best to contact Cadence (or maybe Mentor, since essentially it's their extracted view) customer support to walk through the process and check your data. It's hard to tell what is wrong without being able to see it... Regards, Andrew.
Back to top	IP Logged

ywguo

Community Fellow

Offline

Posts: 943
Shanghai, PRC

Re: Post-layout simulation
Reply #6 - Sep 10^th, 2009, 12:23am

Quote:

1 in the Calibre setting I selectedCalibre-->outputs-->SVDB-->Generate Calibre connectivity interface data, start RVE after PEX, Generate cross reference data for RVE, then after Calibre I can generate a Calibre view with the default setting. In the mean time three files are also generated" *.pex.netlist, *.pxi, *.pex.netlist.pex

tideblue,

Try to choose Outputs --> CALIBREVIEW in the Netlist panel.

Yawei

Back to top

IP Logged

nomanhai New Member Offline Posts: 1 Link�ping Sweden	Re: Post-layout simulation Reply #7 - Dec 30^th, 2009, 6:44pm Hi tideblue, would you able to solve the problem that extracted and schematic simulations match exactly. I am having the same pproblem. Please help me out. Thanks,
Back to top	Noman Hai IP Logged