Designer’s Guide Community

Gp

Community Member

Offline

Posts: 35

Dynamic glitch check with spectre option
Aug 03^rd, 2017, 6:25am

Hi All,

I want to use glitch check with spectre (spectre.scs) option. I am using following way but report (.xml) was not generated.

glitch_chk dyn_glitch node=["INV_1"] duration=10n high=1.2

the following message is generated regarding from log file about glitch check :

Design checks inventory:
dyn_glitch 1

Circuit Check::Setting up dynamic checks...

Circuit Check::Set up dynamic checks done.

Is it the right way or not? if not, kindly suggest me of the proper way of dynamic glitch check.

Back to top

IP Logged

Andrew Beckett

Senior Fellow

Offline

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

Posts: 1742
Bracknell, UK

Re: Dynamic glitch check with spectre option
Reply #1 - Aug 5^th, 2017, 2:09am

Based on your previous post, INV_1 is a subckt, not a node - so maybe that's why it doesn't work.

This example works fine:
Code:

//

Vglitch (INV_1 0) vsource type=pwl wave=[0 0 40n 0 41n 1.0 43n 1.0 44n 0 100n 0 101n 1.0 122n 1.0 123n 0.0]

glitch_chk dyn_glitch node=["INV_1"] duration=10n high=1.2

tran tran stop=200n

By the way, I think you might be posting these questions in the wrong forum - I'm assuming you're asking these related to spectre (which is a circuit simulator, not an AMS simulator)?

Not that it matters that much!

Regards,

Andrew.

Back to top

IP Logged

Gp Community Member Offline Posts: 35	Re: Dynamic glitch check with spectre option Reply #2 - Aug 5^th, 2017, 2:20am Hi, Do I want to glitch check for particular signal? If yes, than how possible?
Back to top	IP Logged

Andrew Beckett

Senior Fellow

Offline

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

Posts: 1742
Bracknell, UK

Re: Dynamic glitch check with spectre option
Reply #3 - Aug 5^th, 2017, 2:50am

You appear to be asking me a question that only you can answer - I've no idea if you want to do a glitch check for a particular signal.

If you were looking at a signal called INV_1, it would be what I showed above. If infact your subckt was called INV_1 and you wanted to check (say) a signal called clk inside that, then it would be:

Code:

glitch_chk dyn_glitch node=["clk"] duration=10n high=1.2 subckt=["INV_1"]

Regards,

Andrew.

Back to top

IP Logged

Gp Community Member Offline Posts: 35	Re: Dynamic glitch check with spectre option Reply #4 - Aug 5^th, 2017, 3:21am It's Working now. Thanks, Andrew.
Back to top	IP Logged