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ORCAD-16.3网表我问题
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请教一下在orcad中生成allegro网表时报错，如下所示：
Design Name:
i:\test\cadence-orcad\test.dsn
Netlist Directory:
i:\test\cadence-orcad\allegro
Configuration File:
D:\Cadence\SPB_16.3\tools\capture\allegro.cfg
Spawning... "D:\Cadence\SPB_16.3\tools\capture\pstswp.exe" -pst -d "i:\test\cadence-orcad\test.dsn" -n "i:\test\cadence-orcad\allegro" -c "D:\Cadence\SPB_16.3\tools\capture\allegro.cfg" -v 3 -l 31 -s "" -j "PCB Footprint"
#1 Error [ALG0043] Net named "NC" found on the design. Please rename the net.
#2 Aborting Netlisting... Please correct the above errors and retry.
Exiting... "D:\Cadence\SPB_16.3\tools\capture\pstswp.exe" -pst -d "i:\test\cadence-orcad\test.dsn" -n "i:\test\cadence-orcad\allegro" -c "D:\Cadence\SPB_16.3\tools\capture\allegro.cfg" -v 3 -l 31 -s "" -j "PCB Footprint"
*** Done ***
是什么原因，请指点，谢谢大家！
Design Name:
i:\test\cadence-orcad\test.dsn
Netlist Directory:
i:\test\cadence-orcad\allegro
Configuration File:
D:\Cadence\SPB_16.3\tools\capture\allegro.cfg
Spawning... "D:\Cadence\SPB_16.3\tools\capture\pstswp.exe" -pst -d "i:\test\cadence-orcad\test.dsn" -n "i:\test\cadence-orcad\allegro" -c "D:\Cadence\SPB_16.3\tools\capture\allegro.cfg" -v 3 -l 31 -s "" -j "PCB Footprint"
#1 Error [ALG0043] Net named "NC" found on the design. Please rename the net.
#2 Aborting Netlisting... Please correct the above errors and retry.
Exiting... "D:\Cadence\SPB_16.3\tools\capture\pstswp.exe" -pst -d "i:\test\cadence-orcad\test.dsn" -n "i:\test\cadence-orcad\allegro" -c "D:\Cadence\SPB_16.3\tools\capture\allegro.cfg" -v 3 -l 31 -s "" -j "PCB Footprint"
*** Done ***
是什么原因，请指点，谢谢大家！
不能有NC网络
芯片出来有空脚的话怎么处理，如果空脚很多，每个都给他赋一个网络也太麻烦了，那个PLACE NO CONNECT也放不上去，不知道怎么回事
直接设置为空PIn 就可以了！
NC为ORCAD系统保留字,避免使用,可以使用NC_0 NC_1 ...命名,
如果统一命名且指定为POWER属性时,在原理图中连接时需添加NO CONNECT符号,以避免生成多余网络.
