mixed-signal AMS simulation error

Which version of INCISIVE are you using? I saw one report of this with a customer using IC616 and INCISIV12.1 - and the problem did not occur if they used INCISIV12.2. Also if they did a Netlist->Recreate it went away too (using INCISIV12.1).

And which subversion of IC6.1.5 (Help->About in the CIW will tell you)?

Regards,

Andrew.

Andrew,

    I am using inciciv-12.10.006. The Cadence version is ic6.1.5-64b.500.17.

    I tried this: in ADE, Simulation -> Netlist -> Recreate, then Run. The error still exisits.

 Following is the irun.log:

irun: 12.10-s006: (c) Copyright 1995-2012 Cadence Design Systems, Inc.

TOOL: irun 12.10-s006: Started on Oct 08, 2013 at 07:02:02 MST

irun

-f irunArgs

-clean

-UNBUFFERED

-errormax 50

-status

-nowarn DLNOHV

-nowarn DLCLAP

-v93

-incdir /home/users/wangx/rechips/

-timescale 1ns/1ns

-discipline logic

-delay_mode None

-novitalaccl

-access r

-noparamerr

-amspartinfo ../psf/partition.info

-rnm_partinfo

-modelincdir /home/users/wangx/rechips/

./spiceModels.scs

./amsControlSpectre.scs

-input ./probe.tcl

-run

-exit

-ncsimargs "+amsrawdir ../psf"

-simcompatible_ams spectre

-name test02:config

-amsconnrules ConnRules_3V_full_fast

+define+CDS_SELECT_CRS

+define+CONNRULES_3V_FULL_FAST

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/ConnRules_3V_basic/connect/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/L2E_2/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/E2L_2/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/Bidir_2/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/E2R/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/R2E_2/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/ER_bidir/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/R2L/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/L2R/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/RL_bidir/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/L2E_2_CPF/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/Bidir_2_CPF/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/E2L_2_CPF/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/R2L_CPF/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/L2R_CPF/module/verilog.vams

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/connect_lib/connectLib/RL_Bidir_CPF/module/verilog.vams

./netlist.vams

-f ./textInputs

/home/users/wangx/rechips/verilog_test/inv_vlog/verilog/verilog.v

./cds_globals.vams

-l ../psf/irun.log

irun: *E,BDOPT: Unknown option -rnm_partinfo.

TOOL: irun 12.10-s006: Exiting on Oct 08, 2013 at 07:02:02 MST  (total: 00:00:00)

 Thanks

In the CIW, can you enter:

_amsUISimFeatures->ncelab_rnmpartinfo

and see what it returns? Also can you do:

getShellEnvVar("AMS_FEATURE_FILE")

and see if that returns anything (I'm wondering if the AMS_FEATURE_FILE UNIX env var has been set and is pointing to an INCISIV12.2 installation hierarchy).

Finally, if the first returns t, and the AMS_FEATURE_FILE isn't set, can you take a look in:

/pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/files/amssim.dat

if you do "grep rnm  /pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/files/amssim.dat" and see if it returns a line with "rnmpartinfo".

Thanks,

Andrew.

Andrew,

    In the CIW, I entered:

     _amsUISimFeatures->ncelab_rnmpartinfo

    then it returned: nil

    Then I entered:

     getShellEnvVar("AMS_FEATURE_FILE")

    It returned: nil 

     Then I entered  following in a terminal window:

     rep rnm /pkg/incisiv-12.10.006/tools.lnx86/affirma_ams/etc/files/amssim.dat

     It retured nothing. 

     Does this mean I have some fundamental setup issue?

That's odd. Your setup looks normal - the above tells me that you've not pointed it to an erroneous feature file (you should not set $AMS_FEATURE_FILE except if told to by Cadence for some reason), and it wasn't something wrong with the feature file (that's the amssim.dat) in the specific subversion you're using.

I can't see how it would netlist -rnm_partinfo without this though. Having netlisted in ADE, can you enter this in the CIW?:

_amsOSSIrunObj->feature_ncelab_rnmpartinfo

Anyway, the solution is probably just to switch to using INCISIV12.2 - since that version does support the -rnm_partinfo option on irun.

Kind Regards,

Andrew.

yes, it looks not normal.

When I do simulation->netlist->recreate, the CIW window shows AMS netlisting has completed successfully.

As you mentioned, after entered 

_amsOSSIrunObj->feature_ncelab_rnmpartinfo 

it retured t 

By the way how to switch to incisiv 12.2? How do i tell if incisiv 12.2 is installed?

When I start the virtuoso I use: virt +incisiv xh035, where xh035 is the process I use. 

 Following is the netlist it created:

////////////////////////////////////////////////////////////////////////

// PLEASE DO NOT EDIT OR COMPILE THIS FILE.                             

// IT IS MEANT FOR VIEWING PURPOSE ONLY.                                

// 

// All files for configuration: (re353 test02 config)

////////////////////////////////////////////////////////////////////////

// AMS netlist generated by the OSS based AMS netlister

// IC subversion:  IC6.1.5-64b.500.17 

// IUS version: 12.10-s006

// Copyright(C) 2005-2009, Cadence Design Systems, Inc

// User: wangx Pid: 18069

// Design library name: re353

// Design cell name: test02

// Design view name: config

// Solver: Spectre

`include "disciplines.vams"

`include "userDisciplines.vams"

// Library - xh035_std_v01, Cell - ginva, View - schematic

// LAST TIME SAVED: Oct  1 08:44:01 2013

// NETLIST TIME: Oct  8 13:05:29 2013

`timescale 1ns / 1ps 

(* cds_ams_schematic *) 

module ginva (O, I);

parameter Wp=7e-07;

parameter Lp=3.5e-07;

parameter Wn=7e-07;

parameter Ln=3.5e-07;

output  O;

input  I;

wire (*

integer inh_conn_prop_name = "ggnd";

integer inh_conn_def_value = "cds_globals.\\vss! ";*)

cdsNet0;

wire (*

integer inh_conn_prop_name = "gpwr";

integer inh_conn_def_value = "cds_globals.\\vdd! ";*)

cdsNet1;

\pmos #(.m("(1)*(1)"), .w(Wp), .l(Lp), .ad(0.85u*(Wp)), .as(0.85u*(Wp))

    , .pd(0.85u*2+(Wp)), .ps(0.85u*2+(Wp)), .nrd(0.3u/(Wp)), 

    .nrs(0.3u/(Wp)), .par1("(1)")) 

(* integer passed_mfactor = "m"; *)

M0 (O, I, cdsNet1, cdsNet1);

\nmos #(.m("(1)*(1)"), .w(Wn), .l(Ln), .ad(0.85u*(Wn)), .as(0.85u*(Wn))

    , .pd(0.85u*2+(Wn)), .ps(0.85u*2+(Wn)), .nrd(0.3u/(Wn)), 

    .nrs(0.3u/(Wn)), .par1("(1)")) 

(* integer passed_mfactor = "m"; *)

M1 (O, I, cdsNet0, cdsNet0);

endmodule

// Library - re353, Cell - test02, View - schematic

// LAST TIME SAVED: Oct  8 12:40:35 2013

// NETLIST TIME: Oct  8 13:05:29 2013

`timescale 1ns / 1ps 

(* cds_ams_schematic *) 

module test02 ();

ginva #( .Wn(7e-07), .Lp(3.5e-07), .Ln(3.5e-07), .Wp(7e-07) ) I0 ( 

    .O(ginva_o), .I(net1));

myinv I6 ( .o(dinv_o), .in(ginva_o));

vsource #(.type("pulse"), .val0(0), .val1(3), .period(1u), .delay(0), 

    .rise(100n), .fall(100n), .width(500.0n)) V0 (net1, 

    cds_globals.\gnd! );

vsource #(.dc(3), .type("dc")) V2 (cds_globals.\vdd! , 

    cds_globals.\gnd! );

vsource #(.dc(0), .type("dc")) V1 (cds_globals.\vss! , 

    cds_globals.\gnd! );

endmodule

// Verilog-AMS cds_globals module for top-level cell:

//    re353/test02.

// Generated by ADE.

// Cadence Design Systems, Inc.

// This is an autoGenerated file, any changes done to this file may get lost.

`include "disciplines.vams"

`include "userDisciplines.vams"

module cds_globals;

// Global Signals

   wire \vdd! ;

   wire \vss! ;

   electrical \gnd! ;

   ground \gnd! ;

// Design Variables

endmodule

// This is the Cadence AMS Designer(R) analog simulation control file. 

// It specifies the options and analyses for the Spectre analog solver. 

simulator lang=spectre 

simulatorOptions options temp=25.0 tnom=27 scale=1.0 scalem=1.0 \

reltol=1e-3 vabstol=1e-6 iabstol=1e-12 gmin=1e-12 rforce=1 maxnotes=5 \

maxwarns=5 digits=5 pivrel=1e-3 checklimitdest=psf 

tran tran stop=5u save=none write="spectre.ic" writefinal="spectre.fc" \

annotate=status maxiters=5 

finalTimeOP info what=oppoint where=rawfile

modelParameter info what=models where=rawfile 

element info what=inst where=rawfile 

outputParameter info what=output where=rawfile 

# This is the NC-SIM(R) probe command file

# used in the AMS-ADE integration.

#

# Database settings

#

if { [info exists ::env(AMS_RESULTS_DIR) ] } { set AMS_RESULTS_DIR $env(AMS_RESULTS_DIR)} else {set AMS_RESULTS_DIR "../psf"}

database -open ams_database -into ${AMS_RESULTS_DIR} -default

#

# Probe settings

#

probe -create -emptyok -database ams_database {test02.ginva_o}

probe -create -emptyok -database ams_database {test02.dinv_o}

I can't see how this could be being set if it's not in the feature file. Very odd....

The "virt +incisiv" is some wrapper scripts in your environment. Best to ask whoever is reponsible for installing software at your site.

Kind Regards,

Andrew.

Clearly the simplest way to solve it is to use a newer version of INCISIVE. Which version are you using?

Andrew.