LVS报错求助

血色残阳C · 发表于 2017-6-14 01:36:14

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在calibre下做LVS时报出下面的错误，求助，应该怎么解决呢？  Error: Different numbers of nets.
  Error: Different numbers of instances.
  Error: Connectivity errors.
  Error: Instances of different types or subtypes were matched.
  Warning:  Ambiguity points were found and resolved arbitrarily.

INITIAL NUMBERS OF OBJECTS
--------------------------

            Layout Source       Component Type
            ------ ------       --------------
Ports:          85       85

Nets:          74798    74773 *

Instances:    69734    69734       MN (4 pins)
               64102    64102       MP (4 pins)
            ------ ------
Total Inst: 133836 133836

NUMBERS OF OBJECTS AFTER TRANSFORMATION
---------------------------------------

            Layout Source       Component Type
            ------ ------       --------------
Ports:          85       85

Nets:          26502    26261 *

Instances:       357    357       MN (4 pins)
               5876    5876       MP (4 pins)
                  1       1       OAI_3_1 (5 pins)
                  1       1       SDW3 (4 pins)
                  2       2       SUP3 (4 pins)
               212    212       SPDW_2_1 (4 pins)
                  3       3       SPDW_2_1_1 (5 pins)
               3053    3053       SPDW_2_2 (5 pins)
                  10       10       SPDW_2_2_1 (6 pins)
               150    150       SPDW_2_2_2 (7 pins)
                  2       2       SPDW_3_2 (6 pins)
               188    188       SPUP_2_1 (4 pins)
                  1       1       SPUP_2_1_1 (5 pins)
               163    163       SPUP_2_2 (5 pins)
               151    151       SPUP_2_2_1 (6 pins)
                  1       1       SPUP_3_2 (6 pins)
               9193       0 * _invb (6 pins)
               6131    14892 * _invv (4 pins)
                  84       0 * _invx2b (6 pins)
               304    604 * _invx2v (4 pins)
                  1       1       _invx4v (4 pins)
               257       0 * _nand2b (7 pins)
               121    378 * _nand2v (5 pins)
                  6       0 * _nand3b (8 pins)
                  28       34 * _nand3v (6 pins)
                  6       0 * _nand4b (9 pins)
               162    168 * _nand4v (7 pins)
                  8       0 * _nor2b (7 pins)
               212    220 * _nor2v (5 pins)
                  25       25       _nor3v (6 pins)
                  2       0 * _nor4b (9 pins)
               163    165 * _nor4v (7 pins)
               111       0 * _sdw2b (5 pins)
               10760       0 * _sdw3b (6 pins)
               721    832 * _smn2v (4 pins)
               508    11268 * _smn3v (5 pins)
               11921       0 * _smp2b (5 pins)
               6150    18071 * _smp2v (4 pins)
                  4       4       _smp3v (5 pins)
                  75       0 * _xr2b (7 pins)
                  86    161 * _xr2v (5 pins)
                  1       1       _xra2v (5 pins)
            ------ ------
Total Inst:    57211    56995

   * = Number of objects in layout different from number in source.

**************************************************************************************************************
                              INCORRECT OBJECTS
**************************************************************************************************************

LEGEND:
-------

  ne  = Naming Error (same layout name found in source
      circuit, but object was matched otherwise).

**************************************************************************************************************
                                 INCORRECT NETS

DISC#  LAYOUT NAME                                              SOURCE NAME
**************************************************************************************************************

  1 Net OUT[1]                                              OUT[1]
   --------------------------                               --------------------------

   (SPUP_2_1):input                                        ** missing connection **
      X3/X2764/M5(97.165,149.265):g

   (_sdw2b):in1                                           ** missing connection **
      X3/X2764/M2(97.165,147.625):g

   ** missing connection **                               (SPUP_2_1):input
                                                               XU12524/M3:g

   ** missing connection **                               XU12524/M0:g

--------------------------------------------------------------------------------------------------------------

  2 Net OUT[5]                                              OUT[5]
   --------------------------                               --------------------------

   (SPUP_2_1):input                                        ** missing connection **
      X3/X2765/M5(536.725,142.545):g

   (_sdw2b):in1                                           ** missing connection **
      X3/X2765/M2(536.725,140.905):g

   ** missing connection **                               (SPUP_2_1):input
                                                               XU12520/M3:g

   ** missing connection **                               XU12520/M0:g
   这个是net的错误

**************************************************************************************************************
                              INCORRECT INSTANCES

DISC#  LAYOUT NAME                                              SOURCE NAME
**************************************************************************************************************

51 X1/X1076/M14(73.200,91.160)  MP(pch)                   Xadd_673/XU1_1_2/M14  MP(PCH)
      s: X1/X1076/16                                           s: Xadd_673/XU1_1_2/8
      g: 459                                                 ** n9001 **
      b: X1/2693                                              ** no similar net **
      ** X1/1354 **                                           g: Xadd_673/carry[2]
      ** no similar net **                                     b: VDD

--------------------------------------------------------------------------------------------------------------

52 X1/X1076/M15(72.450,91.530)  MP(pch)                   Xadd_673/XU1_1_2/M15  MP(PCH)
      s: X1/X1076/16                                           s: Xadd_673/XU1_1_2/8
      b: X1/2693                                              ** no similar net **
      ** no similar net **                                     b: VDD

--------------------------------------------------------------------------------------------------------------

53 X1/X1076/M6(72.200,93.035)  MN(nch)                      Xadd_673/XU1_1_2/M6  MN(NCH)
      s: X1/X1076/16                                           s: Xadd_673/XU1_1_2/8
      g: 459                                                 ** n9001 **
      b: 3722                                                 ** no similar net **
      ** X1/1354 **                                           g: Xadd_673/carry[2]
      ** no similar net **                                     b: VSS

这个是instance的错误

**************************************************************************************************************
                           INFORMATION AND WARNINGS
**************************************************************************************************************

               Matched Matched Unmatched Unmatched Component
               Layout    Source    Layout    Source Type
               ------- ------- --------- --------- ---------
Ports:             83       83          2          2

Nets:          12940    12940       13562       13321

Instances:       327       327          30          30 MN(NCH)
                     44       44       5832       5832 MP(PCH)
                     1       1          0          0 OAI_3_1
                     1       1          0          0 SDW3
                     2       2          0          0 SUP3
                     21       21       191       191 SPDW_2_1
                     1       1          2          2 SPDW_2_1_1
                  2699    2699       354       354 SPDW_2_2
                     10       10          0          0 SPDW_2_2_1
                  150       150          0          0 SPDW_2_2_2
                     2       2          0          0 SPDW_3_2
                  182       182          6          6 SPUP_2_1
                     1       1          0          0 SPUP_2_1_1
                  156       156          7          7 SPUP_2_2
                  147       147          4          4 SPUP_2_2_1
                     1       1          0          0 SPUP_3_2
                     0       0       9193          0 _invb
                  6131    6131          0       8761 _invv
                     0       0          84          0 _invx2b
                  304       304          0       300 _invx2v
                     1       1          0          0 _invx4v
                     0       0       257          0 _nand2b
                  121       121          0       257 _nand2v
                     0       0          6          0 _nand3b
                     28       28          0          6 _nand3v
                     0       0          6          0 _nand4b
                  162       162          0          6 _nand4v
                     0       0          8          0 _nor2b
                  212       212          0          8 _nor2v
                     25       25          0          0 _nor3v
                     0       0          2          0 _nor4b
                  163       163          0          2 _nor4v
                     0       0       111          0 _sdw2b
                     0       0       10760          0 _sdw3b
                  721       721          0       111 _smn2v
                  508       508          0       10760 _smn3v
                     0       0       11921          0 _smp2b
                  6150    6150          0       11921 _smp2v
                     4       4          0          0 _smp3v
                     0       0          75          0 _xr2b
                     86       86          0          75 _xr2v
                     1       1          0          0 _xra2v
               ------- ------- --------- ---------
Total Inst:    18362    18362       38849       38633

**************************************************************************************************************
                           DETAILED INSTANCE CONNECTIONS

   LAYOUT NAME                                              SOURCE NAME
**************************************************************************************************************

      (This section contains detailed information about connections of
         matched instances that are involved in net discrepancies).

--------------------------------------------------------------------------------------------------------------

   (_sdw2b)                                                 (_smn2v)
      in2: 3000                                              in1: n11060
      out1: 722                                              out1: n9484
      in1: OUT[3]                                              ** OUT[3] **
      out2: GND                                              ** no similar net **
      ** no similar net **                                     in2: n11640
      ** no similar net **                                     out2: VSS

   Devices:
      X3/X2772/M1(832.855,140.215)  MN(nch)                   XU12522/M1  MN(NCH)
      X3/X2772/M2(833.515,140.215)  MN(nch)                   XU12522/M2  MN(NCH)

--------------------------------------------------------------------------------------------------------------

   (_nor2b)                                                 (_nor2v)
      in1: X6/X303/12                                        in2: XTX_STB2_tri/3
      out: X6/X303/15                                        out: XTX_STB2_tri/6
      in2: 2468                                              ** no similar net **
      sup1: POWER                                              ** no similar net **
      sup2: GND                                              ** no similar net **
      ** SHL **                                              in1: SHL
      ** no similar net **                                     sup1: VDD
      ** no similar net **                                     sup2: VSS

   Devices:
      X6/X303/M9(1367.570,223.540)  MP(pch)                   XTX_STB2_tri/M9  MP(PCH)
      X6/X303/M10(1367.140,223.540)  MP(pch)                   XTX_STB2_tri/M10  MP(PCH)
      X6/X303/M3(1367.570,221.960)  MN(nch)                   XTX_STB2_tri/M3  MN(NCH)
      X6/X303/M4(1366.910,221.960)  MN(nch)                   XTX_STB2_tri/M4  MN(NCH)

新手，求指教，应该怎么解决呢？

lijiali_baby · 发表于 2017-6-14 17:05:07

有电源地没连吗？还是Pin的名字不对？

sup1: POWER                                              ** no similar net **
      sup2: GND                                              ** no similar net **
      ** SHL **                                              in1: SHL
      ** no similar net **                                     sup1: VDD
      ** no similar net **                                     sup2: VSS

血色残阳C · 发表于 2017-6-15 16:48:59

回复 2# lijiali_baby
这是我设置电源和地的指令：
derive_pg_connection -power_pin VDD -power_net POWER
derive_pg_connection -ground_pin VSS -ground_net GND
derive_pg_connection -power_net POWER -ground_net GND -tie

但是在floorplan的时候他一直提醒我下面的警告。会不会有关系呢？
Warning: Could not find a valid driver for the hierarchical Ground net 'GND'. (MWDC-285)
Warning: Could not find a valid driver for the hierarchical Power net 'POWER'. (MWDC-285)

还是需要添加tapcell呢？我看很多贴字说道了这个问题

kopzinc · 发表于 2017-6-16 15:07:54

需不需要加tap，需要看你的库中标注单元VDD VSS 有没有衬底接触。

具体到你这个问题，注意：b: X1/2693，是一个浮空线网，而不是你加的power gnd，所以说明你的电源没有加到衬底上，所以你需要加tap。

只不过可能还有其它问题，先解决这个再看看吧。

血色残阳C · 发表于 2017-6-18 22:59:59

回复 2# lijiali_baby

而我在生成.v网表生成spice网表是 -v0 VSS -v1 VDD 是这样定义的电源线，请问这样定义有问题吗

血色残阳C · 发表于 2017-6-19 10:42:02

回复 4# kopzinc

如果是加tapcell的话，我这样加合适吗：gui_set_current_task -name {Design Planning}
create_floorplan -core_utilization 0.55 -core_aspect_ratio 0.075 -start_first_row -flip_first_row -left_io2core 70 -bottom_io2core 70 -right_io2core 70 -top_io2core 70
remove_power_ring_strategy -all
set_power_ring_strategy r_basic -nets {POWER GND} -core -template basic_ring.tpl:basic_ring(20,10)
compile_power_plan -preview -ring
compile_power_plan -ring
add_tap_cell_array -master_cell_name TAP -distance 30 -pattern normal -connect_power_name POWER -connect_ground_name GND
create_fp_placement -congestion_driven -timing_driven
route_zrt_global -congestion_map_only true -exploration true
preroute_standard_cells -nets "POWER GND" -remove_floating_pieces -connect horizontal

第一次加，不知道对不对，求指教

[求助] LVS报错求助

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