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Plotting gm Vs. time from PSS simulation (6.1.5-64b.500.11)

MicheleA

Hi all,

yes...there is this support answer #11003524 which should address the topic.

I also learnt from Andrew some time ago about saving oppoints and/or specific info through a file and attaching it to the model libraries.

What I am experiencing now is that the method:

a) gives me the info out of a *tran*

b) gives me the info out of a *envlp_td* 

c) for a *pss*, I get

1. a _constant_ value in the *pss_td* folder, if I use the shooting method (seems like a DCOP value)

2. nothing if I use the HB method

Just wondering whether that is the behavior to be expected, or shouldn't I get a (nice) plot of my wanted gm over a period, exactly like I get it for any other V/I in the circuit after a pss?

I seem to remember having done the same thing some 6 months ago and it worked fine..

Thanks for any help.

Michele 

Parents

  • So...I must be growing older since I do not remember replying to myself in the past ;-)

    Anyhow, I found out yesterday what the issue is. I was simulating using the 'High Performance Simulator -- APS'.

    For some reason - I am in contact with the Support for this - it looks like the stored gm is just a DC value.

    I had a glimpse yesterday and tried the same simulation with good ole Spectre and bam! My gm Vs. time was there!

    Happiness!

    Maybe this helps someone,

    Michele 

Reply

  • So...I must be growing older since I do not remember replying to myself in the past ;-)

    Anyhow, I found out yesterday what the issue is. I was simulating using the 'High Performance Simulator -- APS'.

    For some reason - I am in contact with the Support for this - it looks like the stored gm is just a DC value.

    I had a glimpse yesterday and tried the same simulation with good ole Spectre and bam! My gm Vs. time was there!

    Happiness!

    Maybe this helps someone,

    Michele 

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