使用命令：
   derive_pg_connection -power_net VDDO -power_pin VDDO -ground_net VSSO -ground_net VSSO

提示：

Error: Pin name VDDO specified by power_pin or gournd_pin option is invalid.(MWUI-715)
Error: Pin name VSSO specified by power_pin or gournd_pin option is invalid.(MWUI-715)


用Synopsys ICC LAB提供的库与我自己的库，做对比分析（用Synopsys库是没有上面这个问题的），发现有些异常，具体原因和解决方法还没有弄出来，先写在这里备份：

1.   在db库中的cell:
1) 正确的：

****************************************
Report : library
Library: cb13io320_tsmc_max
Version: D-2010.03-ICC-SP5-2
Date   : Wed Sep 16 16:28:03 2015
****************************************

Library Type            : Technology
Tool Created            : 2003.06
Date Created            : 14-Nov-101 (INF CREATED ON 14-NOV-2001)
Library Version   Power Supply Group:

     default_power_rail      : coreLevel
     power Rail    Value
    --------------------
     coreLevel           1.08
     ioLevel           3.00


CELL(pc3d01): 3426.184814, pad;

  PIN(PAD): in, 8.24, 824, 10000, ;

    INPUT_SIGNAL_LEVEL(PAD): ioLevel
  END_PIN PAD;

  PIN(CIN): out, 0, 300, 5, 3, , , ;
    OUTPUT_SIGNAL_LEVEL(CIN): coreLevel
  END_PIN CIN;
END_CELL pc3d01;
Components:


2）错误的：
****************************************
Report : library
Library: IC035io122_max
Version: D-2010.03-ICC-SP5-2
Date   : Wed Sep 16 16:28:33 2015
****************************************

Library Type            : Technology, PG pin Based
Tool Created            : Z-2007.03-SP5
Date Created            : $Date: Mon Apr 22 11:58:34 2013 $
Library Version         : $Revision: 1.0 $
Comments                :

Components:
nom_voltage : 3
Voltage Map: Voltage Name   : Voltage Value
             VDD              3
             VDDO             3
             VDDQ             3
             VSS              0
             VSSO             0
             VSSQ             0
             GND              0

CELL(pc3d01): 32166.699219, pad;

  PG_PIN(VDD):
    VOLTAGE_NAME: VDD
    PG_TYPE: primary_power
  END_PG_PIN VDD;

  PG_PIN(VDDO):
    VOLTAGE_NAME: VDDO
    PG_TYPE: primary_power
  END_PG_PIN VDDO;

  PG_PIN(VDDQ):
    VOLTAGE_NAME: VDDQ
    PG_TYPE: primary_power
  END_PG_PIN VDDQ;

  PG_PIN(VSS):
    VOLTAGE_NAME: VSS
    PG_TYPE: primary_ground
  END_PG_PIN VSS;

  PG_PIN(VSSO):
    VOLTAGE_NAME: VSSO
    PG_TYPE: primary_ground
  END_PG_PIN VSSO;

  PIN(CIN): out, 0, , 3, 5.8984, , 0.029492, ;
    RELATED_POWER_PIN : VDD
    RELATED_GROUND_PIN : VSS
    INTERNAL_POWER: PAD, , '';
      RELATED_PG_PIN : VDD
    INTERNAL_POWER: PAD, , '';
      RELATED_PG_PIN : VDDO
    INTERNAL_POWER: PAD, , '';
      RELATED_PG_PIN : VDDQ
    INTERNAL_POWER: PAD, , '';
      RELATED_PG_PIN : VSS
    INTERNAL_POWER: PAD, , '';
      RELATED_PG_PIN : VSSO
  END_PIN CIN;

  PIN(PAD): in, 6.94299, , 10, ;
    RELATED_POWER_PIN : VDDO
    RELATED_GROUND_PIN : VSS
  END_PIN PAD;
END_CELL pc3d01;

看起来是库的格式有变化

2.  物理信息的不同
1）正确的
    Input Pins          Net            Net Driver Pins   Driver Pin Type
    ----------------    ------------   ----------------  ----------------
    PAD                 Instrn[1]      Instrn[1]         Input port


    Output Pins         Net            Net Load Pins     Load Pin Type
    ----------------    ------------   ----------------  ----------------
    CIN                 net_Instrn[29] I_RISC_CORE/I_INSTRN_LAT/U61/I0
                                                         Input pin (mx02d0

    PG Pins             Net
    ----------------    ------------
    VSSO
    VDD
    VDDQ
    VSSQ
    VSS
    VDD

2）有问题的

    Input Pins          Net            Net Driver Pins   Driver Pin Type
    ----------------    ------------   ----------------  ----------------
    PAD                 p_sel          p_sel             Input port
    VSSO
    VSSQ
    VDDO
    VDDQ
    VSS
    VDD


    Output Pins         Net            Net Load Pins     Load Pin Type
    ----------------    ------------   ----------------  ----------------
    CIN                 sel            U_COMBO/U2_ARITH/U28/A1
                                                         Input pin (nd02d1)

    PG Pins             Net
    ----------------    ------------


可以看到，有问题的库，在ICC中把VSS/VSSO/VSSQ/VDD/VDDO/VDDQ 都当成信号处理了，所以，才会报最初的错误。



      感觉可以不管它，后续手动可以再连接起来VSSO/VSSQ/VDDO/VDDQ.