encounter布局之后lvs不能通过
请问可能是什么原因导致的?谢谢!
自己顶一下。
发具体的report看看
可能性有好几个
诸如这样的。各种连接错误,。主要是incorrect nets和incorrect instances。
Net 37n69
--- 8 Connections On This Net ------ 13 Connections On This Net ---
----------------------------------------------------
** missing connection **(SPUP_2_2):input
XU243/M4:g
** missing connection **(_sdw2v):in2
XU243/M3:g
** missing connection **(_invb)ut
Xadd_68/XU1_1_1/M6:s
Xadd_68/XU1_1_1/M5:s
** missing connection **Xadd_68/XU1_1_1/M7:d
** missing connection **Xadd_68/XU1_1_1/M4:d
Discrepancy #2 in controller
Net 16n71
--- 26 Connections On This Net ------ 30 Connections On This Net ---
----------------------------------------------------
** missing connection **(SPUP_2_2):input
XU239/M4:g
** missing connection **(_sdw2v):in2
XU239/M3:g
** missing connection **(_invb)ut
Xadd_68/XU1_1_3/M6:s
Xadd_68/XU1_1_3/M5:s
** missing connection **(_invb)ut
Xadd_68/XU1_1_3/M7:s
Xadd_68/XU1_1_3/M4:s
Discrepancy #3 in controller
Net 217N65
--- 4 Connections On This Net ------ 7 Connections On This Net ---
----------------------------------------------------
** missing connection **(SPMP((2+2)*1)):input
XLvref_rega5a/M7:g
** missing connection **(SPMN((2+2)*1)):input
XLvref_rega5a/M3:g
** missing connection **(_invv):out
XU293/M4:s
XU293/M5:s
Discrepancy #4 in controller
Net 229N66
--- 4 Connections On This Net ------ 7 Connections On This Net ---
----------------------------------------------------
** missing connection **(SPMP((2+2)*1)):input
XLvref_rega6a/M7:g
** missing connection **(SPMN((2+2)*1)):input
XLvref_rega6a/M3:g
** missing connection **(_invv):out
XU291/M4:s
XU291/M5:s
Discrepancy #5 in controller
Net 22n74
--- 17 Connections On This Net ------ 21 Connections On This Net ---
----------------------------------------------------
请问。可能有哪几个。lvs报错主要为incorrect nets和incorrect instances。
先清一清 DRC
你这个做验证的时候得注意把大小写区分开
以后要 避免出现n和N这样的net名并存的情况