帮忙看看是什么问题？

orcad里的ddr生成网络后，PADS9.3导入的时候总是出错，找了半天也不知道是什么问题，我把报错文档都贴出来

Reading file --  E:\project files\DESIGN\HDDVB-S2MB(DV-1209-0)LOGIC\MB(DV-1209-0)LOGIC\DV-1209-0_V1.1.ASC
No more items matching search item < * >
U2               FPBGA84
*Part name not found U2
BC39.1 BC43.1 BC42.1 BC44.1 BC37.1 BC47.1 U2.A1 U2.A9
*Part name not found U2
U2.C1 U2.C3 U2.C7 U2.C9 U2.E1 U2.E9 U2.G1 U2.G3
*Part name not found U2
U2.G7 U2.G9 U2.J9 U2.M9 U2.R1 BC55.1 C5.1 R50.1
*Not valid pin name for part type D2.2
R41.1 D2.2
*Part name not found U2
RN2.1 U2.M8
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A0
*Part name not found U2
RN4.7 U2.M3
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A1
*Part name not found U2
RN5.1 U2.M2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A10
*Part name not found U2
RN3.5 U2.P7
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A11
*Part name not found U2
RN5.7 U2.R2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A12
*Part name not found U2
RN3.3 U2.R8
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A13
*Part name not found U2
RN2.3 U2.M7
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A2
*Part name not found U2
RN6.3 U2.N2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A3
*Part name not found U2
RN2.5 U2.N8
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A4
*Part name not found U2
RN5.3 U2.N3
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A5
*Part name not found U2
RN3.1 U2.N7
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A6
*Part name not found U2
RN6.1 U2.P2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A7
*Part name not found U2
RN2.7 U2.P8
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A8
*Part name not found U2
RN5.5 U2.P3
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_A9
*Part name not found U2
RN4.5 U2.L2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_BA0
*Part name not found U2
RN4.3 U2.L3
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_BA1
*Part name not found U2
RN6.5 U2.L1
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_BA2
*Part name not found U2
RN1.7 U2.L7
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_CASJ
*Part name not found U2
R42.1 R54.1 U2.J8
*Part name not found U2
RN4.1 U2.K2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_CKE
*Part name not found U2
R43.1 R54.2 U2.K8
*Part name not found U2
RN1.5 U2.L8
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_CSJ
*Part name not found U2
U1.51 U2.D1
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ0
*Part name not found U2
U1.52 U2.C2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ1
*Part name not found U2
U1.70 U2.H1
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ10
*Part name not found U2
U1.71 U2.H3
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ11
*Part name not found U2
U1.77 U2.F9
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ12
*Part name not found U2
U1.78 U2.G8
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ13
*Part name not found U2
U1.80 U2.H7
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ14
*Part name not found U2
U1.81 U2.H9
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ15
*Part name not found U2
U1.54 U2.B1
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ2
*Part name not found U2
U1.55 U2.D3
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ3
*Part name not found U2
U1.61 U2.B9
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ4
*Part name not found U2
U1.62 U2.C8
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ5
*Part name not found U2
U1.63 U2.D9
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ6
*Part name not found U2
U1.64 U2.D7
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ7
*Part name not found U2
U1.67 U2.F1
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQ8
*Part name not found U2
U1.56 U2.B3
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQM0
*Part name not found U2
U1.72 U2.F3
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQM1
*Part name not found U2
U1.58 U2.B7
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQS0
*Part name not found U2
U1.74 U2.F7
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQS1
*Part name not found U2
U1.59 U2.A8
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQSJ0
*Part name not found U2
U1.75 U2.E8
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_DQSJ1
*Part name not found U2
RN1.1 U2.K9
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_ODT
*Part name not found U2
RN1.3 U2.K7
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_RASJ
*Part name not found U2
RN3.7 U2.K3
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDRII_WEJ
*Part name not found U2
U2.J1 BC83.1 C29.1 FB26.2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal DDR_VDDL
*Part name not found U2
BC43.2 BC42.2 BC44.2 BC37.2 BC47.2 U2.A3 U2.A7 U2.B2
*Part name not found U2
U2.B8 U2.D2 U2.D8 U2.E3 U2.E7 U2.F2 U2.F8 U2.H2
*Part name not found U2
U2.H8 U2.J3 U2.J7 U2.N1 U2.P9 BC58.2 BC56.2 C6.2
*Not valid pin name for part type D15.2
C165.2 Q32.E U17.4 C89.1 D15.2 C101.2 Q33.E C117.2
*Not valid pin name for part type D12.2
C87.2 D12.2 Q22.E C92.2 Q23.E R244.2 C86.2 C88.2
*Not valid pin name for part type D7.1
CN6.1 C85.2 D7.1 R244.1
*Not valid pin name for part type D16.1
CN6.22 C89.2 D16.1 R314.1
*Not valid pin name for part type D15.1
U17.2 D15.1 L15.2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal N16807604
*Not valid pin name for part type D16.2
D16.2 Q34.3 C118.1 D17.1
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal N16807652
*Not valid pin name for part type D17.2
L14.2 Q34.1 C118.2 R272.1 D17.2 C120.1
*Not valid pin name for part type D12.1
U15.2 D12.1 L12.2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal N16808143
*Not valid pin name for part type D7.2
D7.2 Q20.3 C84.1 D8.1
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal N16808190
*Not valid pin name for part type D8.2
L11.2 Q20.1 C84.2 R245.1 D8.2 C86.1
*Not valid pin name for part type D2.1
CN3.1 R41.2 D2.1 C8.1
*Part name not found U2
RN6.7 RN6.8 U1.113 U2.J2 BC58.1 BC55.2 C5.2 BC56.1
*Part name not found U2
U1.68 U2.G2
*Bad *CONNECTION* ascii data format, nets must contain more than one pin. Signal XMD9
Warning: deleting signal DDRII_A0
Warning: deleting signal DDRII_A1
Warning: deleting signal DDRII_A10
Warning: deleting signal DDRII_A11
Warning: deleting signal DDRII_A12
Warning: deleting signal DDRII_A13
Warning: deleting signal DDRII_A2
Warning: deleting signal DDRII_A3
Warning: deleting signal DDRII_A4
Warning: deleting signal DDRII_A5
Warning: deleting signal DDRII_A6
Warning: deleting signal DDRII_A7
Warning: deleting signal DDRII_A8
Warning: deleting signal DDRII_A9
Warning: deleting signal DDRII_BA0
Warning: deleting signal DDRII_BA1
Warning: deleting signal DDRII_BA2
Warning: deleting signal DDRII_CASJ
Warning: deleting signal DDRII_CKE
Warning: deleting signal DDRII_CSJ
Warning: deleting signal DDRII_DQ0
Warning: deleting signal DDRII_DQ1
Warning: deleting signal DDRII_DQ10
Warning: deleting signal DDRII_DQ11
Warning: deleting signal DDRII_DQ12
Warning: deleting signal DDRII_DQ13
Warning: deleting signal DDRII_DQ14
Warning: deleting signal DDRII_DQ15
Warning: deleting signal DDRII_DQ2
Warning: deleting signal DDRII_DQ3
Warning: deleting signal DDRII_DQ4
Warning: deleting signal DDRII_DQ5
Warning: deleting signal DDRII_DQ6
Warning: deleting signal DDRII_DQ7
Warning: deleting signal DDRII_DQ8
Warning: deleting signal DDRII_DQM0
Warning: deleting signal DDRII_DQM1
Warning: deleting signal DDRII_DQS0
Warning: deleting signal DDRII_DQS1
Warning: deleting signal DDRII_DQSJ0
Warning: deleting signal DDRII_DQSJ1
Warning: deleting signal DDRII_ODT
Warning: deleting signal DDRII_RASJ
Warning: deleting signal DDRII_WEJ
Warning: deleting signal DDR_VDDL
Warning: deleting signal N16807604
Warning: deleting signal N16807652
Warning: deleting signal N16808143
Warning: deleting signal N16808190
Warning: deleting signal XMD9
**INPUT WARNINGS FOUND**

可能pads里面没有对应的封装，不过我们是orcad到处asc文件再导入pads

pads里有封装，orcad是导出的asc文件，都没有问题的，网络表也是正常的，其他器件导入都正常，就是这个BGA导入不正常

*Part name not found U2
BC39.1 BC43.1 BC42.1 BC44.1 BC37.1 BC47.1 U2.A1 U2.A9
*Part name not found U2
U2.C1 U2.C3 U2.C7 U2.C9 U2.E1 U2.E9 U2.G1 U2.G3
*Part name not found U2
U2.G7 U2.G9 U2.J9 U2.M9 U2.R1 BC55.1 C5.1 R50.1
应该是你新建BGA管脚定义跟院里图不一致，比如举个例子，
DDR的A1脚接到CPU B2的Pin脚，网络名为data1，
，CPU没有B2这个pin，所以才会报你上面的这些错误，
你要检查封装，看看管脚定义是否跟推荐SPC命名一样，
或者你随便查找一个pin脚，S U2.G7这个脚你肯定找不到，意思就是说你CPU没有这个脚，所以DDR的网络想要连接这个脚，但是在你的CPU里是没有这个脚的。

新手，还有很多不懂，来学习啦，呵呵

可能是ORCAD裡的BGA管腳名稱與PADS裡的BGA元件管腳名稱不同(也就是沒有相對應)所以導入到PADS裡失敗(錯誤).