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path error connecting mixer to amplifier

Hello , i have built a cascaded amplifier , which i turned it into a symbol and it worked fine as shown bellow.

When i tried to add it to my mixer it gives me a problem shown in the end.

where did i shorted ? its just replacing the ideal VSIN source of the amplifier with the output of the mixer.
The full LOG was attached in the end.

Thanks

Fullscreen 0676.log.txt Download

Command line:
    /eda_disk/cadence/tools/MMSIM/151/tools/bin/spectre -64 input.scs  \
        +escchars +log ../psf/spectre.out +inter=mpsc  \
        +mpssession=spectre1_24349_3 -format psfxl -raw ../psf  \
        +lqtimeout 900 -maxw 5 -maxn 5
spectre pid = 31746

Loading /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/cmi/lib/64bit/5.0/libinfineon_sh.so ...
Loading /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/cmi/lib/64bit/5.0/libphilips_o_sh.so ...
Loading /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/cmi/lib/64bit/5.0/libphilips_sh.so ...
Loading /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/cmi/lib/64bit/5.0/libsparam_sh.so ...
Loading /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/cmi/lib/64bit/5.0/libstmodels_sh.so ...
Reading file:  /data.cc/data/a/home/cc/students/enginer/yafimv/simulation/mixer3/spectre/schematic/netlist/input.scs
Reading file:  /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/spectre/etc/configs/spectre.cfg
Reading file:  /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/spectre/etc/configs/mapsubckt.cfg
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_25IO_NVT_V021.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_25IO_NVT_V021.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_25IO_V111.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_25IO_V111.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_NCAP25_V113.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_NCAP25_V113.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_varmis_25_rf_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_varmis_25_rf_V011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_33IO_GOX52_VT21.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_33IO_GOX52_VT21.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_25IO_RF_V021.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_25IO_RF_V021.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90-resistor-control-V041.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_res.va
Reading link:  /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/spectre/etc/ahdl/constants.h
Reading file:  /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/spectre/etc/ahdl/constants.vams
Reading link:  /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/spectre/etc/ahdl/discipline.h
Reading file:  /eda_disk/cadence/tools/MMSIM/151/tools.lnx86/spectre/etc/ahdl/disciplines.vams
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_ppo_V031.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_ppo_V031.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_npo_V031.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_npo_V031.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_rnhr_V031.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_rnhr_V031.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_rsnwell_V031.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_rsnwell_V031.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_nd_V031.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_nd_V031.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_pd_V031.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_pd_V031.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_metal_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_r_metal_V011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_BJT_V111.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_BJT_V111.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_DIODE_V101.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LL12_RF_V021.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LL12_RF_V021.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LLLVT12_RF_VTAB.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LLLVT12_RF_VTAB.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LL12_V102.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LL12_V102.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LLHVT12_V101.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LLHVT12_V101.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LLLVT12_V102.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LLLVT12_V102.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LLNVT12_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_LLNVT12_V011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90SP_NCAP10_V112.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90SP_NCAP10_V112.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_NCAP12_LL_V102.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_NCAP12_LL_V102.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SP10_V061.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SP10_V061.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SPHVT10_V111.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SPHVT10_V111.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SPLVT10_V102.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SPLVT10_V102.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SPNVT10_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SPNVT10_V011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_mimcaps_20f_kf_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_mimcaps_20f_kf_V011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_momcaps_V041.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_momcaps_V041.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_vardiop_rf_v011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_vardiop_rf_v011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_varmis_12_llrf_V021.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_varmis_12_llrf_V021.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/momcaps_array_vp3_rfvcl_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/momcaps_array_vp3_rfvcl_V011.typ.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/momcaps_array_vp4_rfvcl_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/momcaps_array_vp4_rfvcl_V011.typ.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/rnhr_rf_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/rnhr_rf_V011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/res_poly.va
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/rnnpo_rf_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/rnnpo_rf_V011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/rnppo_rf_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/rnppo_rf_V011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_varmis_10_sprf_V011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_varmis_10_sprf_V011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/bond_pad_v011.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/bond_pad_v011.mdl.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SP10_RF_V021.lib.scs
Reading file:  /eda_disk/pdks/UMC/UMC90nm/Models/Spectre/L90_SP10_RF_V021.mdl.scs
Time for NDB Parsing: CPU = 207.968 ms, elapsed = 375.18 ms.
Time accumulated: CPU = 241.962 ms, elapsed = 375.187 ms.
Peak resident memory used = 42 Mbytes.


The CPU load for active processors is :
        Spectre  0 (65.8 %)      1 (8.1 %)       2 (2.6 %)       3 (2.7 %)
                 4 (10.8 %)      6 (8.1 %)       7 (18.9 %)     
        Other   

Warning from spectre during circuit read-in.
    WARNING (SFE-2654): VerilogA module `respoly_va' override primitive/(verilogA module) `respoly_va'.
    WARNING (SFE-2654): VerilogA module `respoly_va' override primitive/(verilogA module) `respoly_va'.
Warning from spectre during hierarchy flattening.
    WARNING (SFE-1131): Duplicate scope option `tnom' with scope `TopCircuit'. (using last value specified).

Time for Elaboration: CPU = 32.995 ms, elapsed = 34.9741 ms.
Time accumulated: CPU = 274.957 ms, elapsed = 410.49 ms.
Peak resident memory used = 48.9 Mbytes.

Time for EDB Visiting: CPU = 2 ms, elapsed = 1.67394 ms.
Time accumulated: CPU = 276.957 ms, elapsed = 412.391 ms.
Peak resident memory used = 49.6 Mbytes.


Notice from spectre during topology check.
    Only one connection to node `out'.
    No DC path from node `out' to ground, Gmin installed to provide path.
        V6:p (from vdd! to 0)
    Only one connection to node `out'.
    No DC path from node `out' to ground, Gmin installed to provide path.
Fatal error found by spectre during topology check.
    FATAL: The following branches form a loop of rigid branches (shorts) when added to the circuit:
        V6:p (from vdd! to 0)


Aggregate audit (12:05:36 AM, Sat Mar 23, 2019):
Time used: CPU = 278 ms, elapsed = 414 ms, util. = 67.1%.
Time spent in licensing: elapsed = 15.7 ms.
Peak memory used = 50.1 Mbytes.
Simulation started at: 12:05:35 AM, Sat Mar 23, 2019, ended at: 12:05:36 AM, Sat Mar 23, 2019, with elapsed time (wall clock): 414 ms.
spectre completes with 1 error, 3 warnings, and 4 notices.
spectre terminated prematurely due to fatal error.

Parents

FormerMember over 6 years ago

Dear yefJ,

Your schematic is not clear enough to read. However, the spectre error suggests you have two voltage sources that are driving one another. I was trying to local your voltage source V6. Please examine your input.scs file to determine if you have two voltage sources driving eachother.
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FormerMember over 6 years ago

Dear yefJ,

Your schematic is not clear enough to read. However, the spectre error suggests you have two voltage sources that are driving one another. I was trying to local your voltage source V6. Please examine your input.scs file to determine if you have two voltage sources driving eachother.
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yefJ over 6 years ago in reply to FormerMember

yes duplicate sources to one node, i thought that if they had the same voltage it will not create a problem because the VDD node will feel 1.2V from both of them.

Thank you very much.
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