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| Target library | Link library | Set_min_library | Set_operating_conditions | result | |
Setup time | Hold time | |||||
1 | Slow.db | * slow.db | x | x | Slow slow | Slow slow |
2 | Slow.db | * slow.db | Set_min_library slow.db –min_version fast.db | Set_operating_conditions -max slow –max_lib slow –min fast –min_lib fast | Slow slow | Fast fast |
3 | Slow.db | * fast.db slow.db | x | x | Slow slow | Slow slow |
4 | Slow.db | * fast.db slow.db | Set_min_library slow.db –min_version fast.db | Set_operating_conditions -max slow –max_lib slow –min fast –min_lib fast | Slow slow | Fast fast |
5 | Slow.db | * slow.db fast.db | Set_min_library slow.db –min_version fast.db | Set_operating_conditions -max slow –max_lib slow –min fast –min_lib fast | Slow slow | Fast fast |
6 | Slow.db | * slow.db fast.db | x | x | Slow slow | Slow slow |
7 | Fast.db | * fast.db | x | x | Fast fast | Fast fast |
8 | Fast.db | * fast.db | Set_min_library slow.db –min_version fast.db | Set_operating_conditions -max slow –max_lib slow –min fast –min_lib fast | Slow slow | Fast fast |
9 | Fast.db | * slow.db fast.db | x | x | Fast fast | Fast fast |
10 | Fast.db | * slow.db fast.db | Set_min_library slow.db –min_version fast.db | Set_operating_conditions -max slow –max_lib slow –min fast –min_lib fast | Slow slow | Fast fast |
1, 从slow.db中找到了default_operating_conditions为slow,没有设置set_min_library和set_operating_conditions,那么就使用slow.db中的slow operating condition进行min和max timing分析。
2,从slow.db中找到了default_operating_conditions为slow,设置set_min_library的时候将fast.db读入到memory中,现在memory中一共两个库,slow.db和fast.db,set_operating_conditions,fast和slow条件均在相应的库中找到,设置有效,max使用slow operating condition,min使用fast operating condition,由于设置了set_min_library,就使用这个设置的库进行分析
3,set_operating_conditions中的库没有后缀,切记!!!!
4,可以查看3和9的operating condition 分别是fast和slow,但是最后进行setup time分析的时候用的是target lib,条件也是其中的条件。
5,一般的set_min_library slow.db -min_version fast.db,其中的min_version不要出现在link library中。
用户1077649 2009-11-15 13:07