pt分析spef文件时遇到的错误

14052011

encouter布局布线后导出来spef，然后加入到pt查时序，出现了下面的warning

Warning: Unconnected hierarchy pin 'r638/FE_PT1__P3_N861_' is missing in the RC annotation for net 'P3/N861'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_679/FE_PT1__P3_N856_' is missing in the RC annotation for net 'P3/N856'. (PARA-007)
Warning: Unconnected hierarchy pin 'add_1_root_P3/add_675_2/FE_PT1__P3_N856_' is missing in the RC annotation for net 'P3/N856'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_677/FE_PT1__P3_N838_' is missing in the RC annotation for net 'P3/N838'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_677/FE_PT1__P3_N833_' is missing in the RC annotation for net 'P3/N833'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_679/A[25]' is missing in the RC annotation for net 'n4955'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_677/FE_RN_2637_0' is missing in the RC annotation for net 'FE_RN_2637_0'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_679/FE_PT1__P3_N834_' is missing in the RC annotation for net 'P3/N834'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_678/FE_PT1__P3_N834_' is missing in the RC annotation for net 'P3/N834'. (PARA-007)
Warning: Unconnected hierarchy pin 'add_1_root_P3/add_674_2/FE_PT1__P3_N832_' is missing in the RC annotation for net 'P3/N832'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_677/FE_PT1__P3_N832_' is missing in the RC annotation for net 'P3/N832'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_678/FE_PT1__P3_N832_' is missing in the RC annotation for net 'P3/N832'. (PARA-007)
Warning: Unconnected hierarchy pin 'r638/FE_PT1__P3_N476_' is missing in the RC annotation for net 'P3/N476'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_677/A[31]' is missing in the RC annotation for net 'n4997'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_678/n4997' is missing in the RC annotation for net 'n4997'. (PARA-007)
Warning: Unconnected hierarchy pin 'add_1_root_P3/add_675_2/FE_PT1__P3_N859_' is missing in the RC annotation for net 'P3/N859'. (PARA-007)
Warning: Unconnected hierarchy pin 'add_1_root_P3/add_674_2/n4960' is missing in the RC annotation for net 'n4960'. (PARA-007)
Warning: Unconnected hierarchy pin 'add_1_root_P3/add_673_2/A[26]' is missing in the RC annotation for net 'P3/P3_operand_B_shift[26]'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_679/A[30]' is missing in the RC annotation for net 'n4927'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_677/n4927' is missing in the RC annotation for net 'n4927'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_678/A[30]' is missing in the RC annotation for net 'n4927'. (PARA-007)
Warning: Unconnected hierarchy pin 'add_1_root_P3/add_675_2/CI' is missing in the RC annotation for net 'P0_P3_condition_code[0]'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_677/FE_PT1__P3_N831_' is missing in the RC annotation for net 'P3/N831'. (PARA-007)
Warning: Unconnected hierarchy pin 'P3/add_679/A[29]' is missing in the RC annotation for net 'n4501'. (PARA-007)
Warning: Unconnected hierarchy pin 'add_1_root_P3/add_673_2/FE_PT1__P3_N496_' is missing in the RC annotation for net 'P3/N496'. (PARA-007)

好像是这些管脚没有标注上，不知道这个warning怎么修改啊？是什么时候出错了？encouter导网表还是spef文件出错了，求高人指点~~

谢谢~~

还有一个小问题，就是encounter在verify的时候有个warning ：
OFFMANUGRID: Regular Via of Net rf/gprb/wdi_b[5]  ( M5 )
Bounds : ( 227.355, 506.045 ) ( 227.684, 506.245 )
是不是说布线时线偏离了工艺格点，自己通过手动已经解决了，只是想让高手给讲解一下，这个问题的原因是什么？有什么影响？

陈涛

在enocunter里面查一下那些Unconnected hierarchy pin的连接，如果是空的，就可以不管它，如果不是空的，就要verifyConnectivity

14052011

回复 2# 陈涛


   谢谢~~我查过connectivty，没有错误，我去看看那些pin，看到底有没有？

还有第二个问题：
就是offmanugrid，这个问题的原因是什么？有什么影响？

14052011

回复 2# 陈涛


   查了网表，那些pin确实是没有连接的。看来可以不用考虑了。我有个疑问：encounter跑出来的时序，和到处spef文件在pt下分析，
这两个哪个更有说服力？？

  我在encounter下，时序是slcak=-0.5ns；但用pt跑spef，slcak是正的。

但是记得之前跑过另外一个网表却正好相反，所以不知道这两者哪个更有说服力？？？

还请指教~~

谢谢~~

be4darkness

学习一下，

renhonglei

学习一下！

xylyc521

回复 4# 14052011


    如果ocv uncertainty等参数设置一样的话，肯定是pt为准了，但是从我目前做得项目看，就算encounter悲观些，一般不会偏离那么大，所以你还是好好找找原因。我估计是你encounter里面的参数设置的悲观了