Home > Community > Forums > Custom IC Design > spectre error

Email

* Required Fields

Recipients email * (separate multiple addresses with commas)

Your name *

Your email *

Message *

Contact Us

* Required Fields
First Name *

Last Name *

Email *

Company / Institution *

Comments: *

 spectre error 

Last post Thu, Feb 21 2013 6:58 AM by siva123. 4 replies.
Started by siva123 21 Feb 2013 04:49 AM. Topic has 4 replies and 1156 views
Page 1 of 1 (5 items)
Sort Posts:
  • Thu, Feb 21 2013 4:49 AM

    • siva123
    • Not Ranked
    • Joined on Thu, Feb 21 2013
    • Posts 5
    • Points 185
    spectre error Reply

     hi sir,

    iam simulating  on common source amplifier by using spectre simulator.I given source signal as a vpulse it taken in my analog lib.

    i given all the Vpulse waveforms parameters (i.e Ac magnitude,ac phase,Dc voltage ,voltage1,voltage2, time period,rise time,fall time ,delay time & pulse width) then simulation run throug netelist &run button of spectre tool (ADE L)

    BUT IT SHOWS ERROR

    i.e

     

    Error found by spectre during hierarchy flattening.

    ERROR (CMI-2194): V1: Waveform type must be specified if any waveform parameters are given.



    Time for EDB Visiting: CPU = 999 us, elapsed = 885.963 us.

    Time accumulated: CPU = 1.71174 s, elapsed = 2.29704 s.

    Peak resident memory used = 58.2 Mbytes.


    spectre terminated prematurely due to fatal error.

    my aim is to find out DC gain,Unity-gain frequency & slew rate

     

    Thanks,

    venkata siva

     

     

    • Post Points: 20
  • Thu, Feb 21 2013 5:06 AM

    • Quek
    • Top 10 Contributor
    • Joined on Wed, Oct 14 2009
    • Singapore, 00-SG
    • Posts 1,063
    • Points 16,185
    Re: spectre error Reply

    Hi venkata siva

    Would you please post the line in the spectre netlist for "V1"? E.g.

    V1 (net05 OUT) vsource dc=0 type=dc
    V2 (IN 0) vsource dc=VDD/2 type=sine freq=1M ampl=50.0m mag=1


    Thanks
    Quek

    • Post Points: 20
  • Thu, Feb 21 2013 6:05 AM

    • siva123
    • Not Ranked
    • Joined on Thu, Feb 21 2013
    • Posts 5
    • Points 185
    Re: spectre error Reply

    hi Quek

    These are the v0 & v1 values given by me

    V0 (vdd! 0) vsource dc=3.3 type=dc
    V1 (Vin 0) vsource dc=Vindc mag=1 phase=0 type=sine delay=1p ampl=2.5

    thanks,

    venkata siva

    • Post Points: 20
  • Thu, Feb 21 2013 6:14 AM

    Re: spectre error Reply

    My guess is that you don't have $CDS_Netlisting_Mode set. You should do:

    setenv CDS_Netlisting_Mode Analog  

    if using csh, or if using bash/ksh it would be:

    export CDS_Netlisting_Mode=Analog

    before starting virtuoso/icfb. You may need to do a Simulation->Netlist->Recreate in ADE.

    Andrew.

    • Post Points: 20
  • Thu, Feb 21 2013 6:58 AM

    • siva123
    • Not Ranked
    • Joined on Thu, Feb 21 2013
    • Posts 5
    • Points 185
    Re: spectre error Reply

     hi Andrew

     thanks it s run

     

    thanks,

    venkatasiva

    • Post Points: 5
Page 1 of 1 (5 items)
Sort Posts:
Started by siva123 at 21 Feb 2013 04:49 AM. Topic has 4 replies.