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 help!!how can i do!!thanks 

Last post Tue, Jun 27 2006 3:31 AM by archive. 4 replies.
Started by archive 27 Jun 2006 03:31 AM. Topic has 4 replies and 884 views
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  • Tue, Jun 27 2006 3:31 AM

    • archive
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    help!!how can i do!!thanks Reply

    when i use probe in pcb SI to create waveform,the error happen . in tlsim.log ,it report as below:
    ""

     **** Tlsim Version 14.1 ****

     Tue Jun 27 18:14:20 2006

    **** Tlsim command line ****
     tlsim -r 0.200000 -EIndVsrcDc -o waveforms.sim -dl delay.dl -dst distortion.dst -log tlsim.log -ocycle cycle.msm main.spc


    Number of Nodes in this circuit = 77


    Statistics on N-line elements:
     Number of 'n' type multi-conductor elements = 18
     Type-of-N-element  #elms Max_Length TotalLength

     1-line-N-elm     18   0.0528074    0.163241
     Total Interconnect Length = 0.163241
     Total Coupled Length = 0

     Following is some statistics on Model usage
       Model-Type      Model-Name     Number-of-Models-in-this-circuit

       bdrvr         MPC8220_SSTL_CLK_clksstl2class2_Typical               1
       bdrvr         DQ_FULL_Typical               1
       bdrvr         256MDDR_I_O_DQ_Typical               1
      No of 'Bdrvr' type model instance = 3

     Time Step at Start = 1.86667e-011


    *********************************************************
      ABORT!: MATRIX FACTORIZATION FAILURE IN DC 
    *********************************************************
     possible causes of this mishap are
    1. Modelling inductors as ideal inductors:
    try using the switch -EIndVsrcDc in the simulator command line.
    This will model the inductors with small real dc resistance.
    2. Look for dc offset currents in v-i data . If you have offset currents
    you certainly need dc terminations!!


    **** Transient Simulation Statistics ****

        Number Of time step solutions = 0

    ""
    i donot know how to do!

    can you tell me ?

    thks!!
       best regard!!


    Originally posted in cdnusers.org by upton_zhou
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  • Tue, Jun 27 2006 3:32 AM

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    RE: help!!how can i do!!thanks Reply

    sorry,,can tell me the detail step?


    Originally posted in cdnusers.org by upton_zhou
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  • Tue, Jun 27 2006 3:54 AM

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    RE: help!!how can i do!!thanks Reply

    Have you tried to extract the topology to SigXP? Have you tried another buffer model in place of the driver model. If the simulation works with another buffer, this is most likely caused by a bad IBIS model with inconsistent v-t curves.


    Originally posted in cdnusers.org by Kalevi2
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  • Tue, Jun 27 2006 6:50 PM

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    RE: help!!how can i do!!thanks Reply

    thanks !!!
    i tried to extract the topology to SigXP ,but i know it is not right when use this model .
    i wish you can tell me how can i do now!!
    thanks


    Originally posted in cdnusers.org by upton_zhou
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  • Tue, Jun 27 2006 11:35 PM

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    RE: help!!how can i do!!thanks Reply

    sorry!! i have another question : where input the "tlsim" command .
    where "simulator command line"


    Originally posted in cdnusers.org by upton_zhou
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Started by archive at 27 Jun 2006 03:31 AM. Topic has 4 replies.