calibre 里面的lvs的问题，不懂得怎么看，囧了，求指教

白兰地 · 发表于 2014-6-19 17:55:13

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本帖最后由白兰地于 2014-6-20 09:33 编辑

下面是我lvs出现的警告：
   #############################################################
   ##                                                       ##
   ##             C A L I B R E S Y S T E M             ##
   ##                                                       ##
   ## C I R C U I T E X T R A C T I O N R E P O R T ##
   ##                                                       ##
   #############################################################
REPORT FILE NAME:       810_ch9_break.lvs.report.ext
LAYOUT NAME:             810_ch9_break.calibre.db ('810_ch9_break')
CREATION TIME:          Thu Jun 19 05:15:25 2014
CURRENT DIRECTORY:       /home/fxwang/810/calibre
USER NAME:             fxwang
CALIBRE VERSION:       v2011.2_34.26 Wed Jul 6 05:20:56 PDT 2011
Extraction Errors and Warnings for cell "pwr_rails"
---------------------------------------------------
WARNING:  Unattached label:
      Name  "DVDD"  at location  (67.47,47.92)  on layer  "Metal1_Text"
WARNING:  Unattached label:
      Name  "VSS"  at location  (67.445,105.705)  on layer  "Metal1_Text
WARNING: Unattached port "VSS" at location (67.445,105.705) in cell "pwr_rails"
WARNING: Unattached port "DVDD" at location (67.47,47.92) in cell "pwr_rails"
Extraction Errors and Warnings for cell "gpio_oly"
--------------------------------------------------
WARNING:  Unattached label:
      Name  "DVDD"  at location  (68.685,47.92)  on layer  "Metal1_Text"
WARNING: Unattached port "DVDD" at location (68.685,47.92) in cell "gpio_oly"
Extraction Errors and Warnings for cell "sc_capl"
-------------------------------------------------
WARNING:  Unattached label:
      Name  "poff"  at location  (3.765,14.775)  on layer  "Metal1_Text"
WARNING: Unattached port "poff" at location (3.765,14.775) in cell "sc_capl"
Extraction Errors and Warnings for cell "ipplscp_vss"
-----------------------------------------------------
WARNING:  Unattached label:
      Name  "DVDD"  at location  (1.97,13.68)  on layer  "Metal4_Text"
WARNING:  Unattached label:
      Name  "VDD"  at location  (1.96,79.39)  on layer  "Metal4_Text"
WARNING:  Unattached label:
      Name  "VSS"  at location  (1.91,91.14)  on layer  "Metal4_Text"
WARNING:  Unattached label:
      Name  "VSS"  at location  (1.945,55.92)  on layer  "Metal4_Text"
WARNING: Unattached port "VSS" at location (1.91,91.14) in cell "ipplscp_vss"
WARNING: Unattached port "VSS" at location (1.945,55.92) in cell "ipplscp_vss"
WARNING: Unattached port "VDD" at location (1.96,79.39) in cell "ipplscp_vss"
WARNING: Unattached port "DVDD" at location (1.97,13.68) in cell "ipplscp_vss"
Extraction Errors and Warnings for cell "ipplscp_vdd"
-----------------------------------------------------
WARNING:  Short circuit - Different names on one net:
      Net Id:  1
      (1)  name  "sdlow"  at location  (4.95,0)  on layer  "Metal1_Text"
      (2)  name  "VSS"  at location  (1.925,55.92)  on layer  "Metal4_Text"
      (3)  name  "VSS"  at location  (1.925,91.14)  on layer  "Metal4_Text"
      The name "sdlow" was assigned to the net.
Extraction Errors and Warnings for cell "ICV_34"
------------------------------------------------
WARNING:  Stamping conflict in SCONNECT - Multiple source nets stamp one target net.
      Use LVS REPORT OPTION S or LVS SOFTCHK statement to obtain detailed information.
Extraction Errors and Warnings for cell "ICV_31"
------------------------------------------------
WARNING:  Stamping conflict in SCONNECT - Multiple source nets stamp one target net.
      Use LVS REPORT OPTION S or LVS SOFTCHK statement to obtain detailed information.
WARNING: Unattached port "DVDD" at location (0.26,109.165) in cell "dvss_oly"
WARNING: Unattached port "DVDD" at location (2.265,47.76) in cell "posc_oly_m6"
Extraction Errors and Warnings for cell "810_ch9_break"
-------------------------------------------------------
WARNING:  Stamping conflict in SCONNECT - Multiple source nets stamp one target net.
      Use LVS REPORT OPTION S or LVS SOFTCHK statement to obtain detailed information.

lvs的rule是：
LAYOUT PATH  "810_ch9_break.calibre.db"
LAYOUT PRIMARY "810_ch9_break"
LAYOUT SYSTEM GDSII
SOURCE PATH "/home/fxwang/810/calibre/810_APR_data/810_ch9_break.cdl"
SOURCE PRIMARY "design_top"
SOURCE SYSTEM SPICE
MASK SVDB DIRECTORY "svdb" QUERY
LVS REPORT "810_ch9_break.lvs.report"
LVS REPORT OPTION NONE
LVS FILTER UNUSED OPTION NONE SOURCE
LVS FILTER UNUSED OPTION NONE LAYOUT
LVS REPORT MAXIMUM 200
LVS RECOGNIZE GATES SIMPLE
LVS ABORT ON SOFTCHK NO
LVS ABORT ON SUPPLY ERROR YES
LVS IGNORE PORTS NO
LVS SHOW SEED PROMOTIONS NO
LVS SHOW SEED PROMOTIONS MAXIMUM 50
LVS ISOLATE SHORTS NO
VIRTUAL CONNECT COLON NO
VIRTUAL CONNECT REPORT NO
LVS EXECUTE ERC YES
ERC RESULTS DATABASE "810_ch9_break.erc.results"
ERC SUMMARY REPORT "810_ch9_break.erc.summary" REPLACE HIER
ERC MAXIMUM RESULTS 1000
ERC MAXIMUM VERTEX 4096
DRC ICSTATION YES

白兰地 · 发表于 2014-6-19 17:57:35

本帖最后由白兰地于 2014-6-20 09:48 编辑

*************************************************************************************************************
                           INFORMATION AND WARNINGS
**************************************************************************************************************
               Matched Matched Unmatched Unmatched Component
               Layout    Source    Layout    Source Type
               ------- ------- --------- --------- ---------
Ports:             35       35          0          0

Nets:    43367    43367          28          33
Instances:    4250    4250          0          0 MN(nmos_1p8)
                  699       699          27          27 MN(nmos_3p3)
                  152       152          27          27 R(ppolyf_u)
                        0       0          4          4 D(np_1p8)
                        4       4          13          8 D(pn_3p3)
                        0       0          0          4 PCORNER
                        0       0          0          1 PF32K09E
                        0       0          0          1 ringosc_rc
                  382       382          0       378 SPMN_2_2
                     0       0          0          27 _pmp4b

               ------- ------- --------- ---------
Total Inst:    73406    73406       152       477

在版图里面宏单元和Cornell都有添加进去，但是两边还是对应不起来，而且大部分的错误都是出现在pad上面，这是对pad没处理好吗？

winsm · 发表于 2014-6-20 10:14:01

信息量太少，看不出来什么东西。

damonzhao · 发表于 2014-6-20 10:30:08

0       0          0          4 PCORNER
                        0       0          0          1 PF32K09E
                        0       0          0          1 ringosc_rc

CORNER没必要放进来，那就是些metal连线而已，不是sch的cell
另外两个 PF32K09E和ringosc_rc为什么layout中没有，查一下