加powerpad后不能连电源环
时间：10-02
整理：3721RD
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加入pad后不能连电源
icc_shell> create_cellpad_vdd pvdf
Warning: Library cell matching constraints can not be found. Library cell from the library CSM35IO122_typ is being used (UIED-89)
Creating cell 'pad_vdd' in design 'shiftregister_pad'.
1
icc_shell> derive_pg_connection -power_net {POWER} -ground_net {GND} -power_pin {VDD} -ground_pin {VSS} -cells {pad_vdd}
Warning: Nothing implicitly matched 'pad_vdd' (SEL-003)
Warning: No valid cell(s) are specified for -cells option of derive_pg_connection. (MWUI-713)
0
请问是什么情况?
icc_shell> create_cellpad_vdd pvdf
Warning: Library cell matching constraints can not be found. Library cell from the library CSM35IO122_typ is being used (UIED-89)
Creating cell 'pad_vdd' in design 'shiftregister_pad'.
1
icc_shell> derive_pg_connection -power_net {POWER} -ground_net {GND} -power_pin {VDD} -ground_pin {VSS} -cells {pad_vdd}
Warning: Nothing implicitly matched 'pad_vdd' (SEL-003)
Warning: No valid cell(s) are specified for -cells option of derive_pg_connection. (MWUI-713)
0
请问是什么情况?
知道的请回答下，谢了