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  3. Encounter v7.1 warnings and errors

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Encounter v7.1 warnings and errors

AMS 2003
AMS 2003 over 15 years ago

 Hi all,

There are a number of warnings when I try to load a design into Encounter. I am a first-time user and totally confused.

1) **WARN: There is no overlap layer defined in any lef file so you are unable to create rectilinear partition in a hierarchical flow. 

2) **ERROR: No MANUFACTURINGGRID value was given. It is set to minimum LEF unit of 0.005 um. If this value is not right, a MANUFACTURINGGRID statement must be added in the technology lef file.

I went through a post about manufacturing grid on this community to change the lef file.

everybody uses 0.005, but then DATABASE 1000 was in their LEF file. Its 2000 in mine, What can I do about this?

 3) **WARN: The cell has already been defined in another LEF file, or earlier in this LEF file. All data except the antenna data will be ignored. If the data in both cell definitions is needed, manually merge the data into one definition. 

 4) **WARN:  TLF library 'slow' is version 4.1.  Only versions 4.3 or higher are supported.  You are forcing the reader to continue with this TLF library.  Due to many differences in threshold handling, library units, and sequential cell models, the results in timing analysis, technology mapping, test synthesis and power analysis may be incorrect.  It is strongly recommended that a new TLF library with version 4.3 or higher be obtained.  If this TLF was translated from Synopsys library (.lib), the latest syn2tlf tool can be used to generate new TLF automatically.

-- to solve this I generated the updated tlf file using syn2tlf tool. and changed my .conf file accordingly, but it still gave me the warning. May be it is still sourcing the old file.

 5) No function defined for cell 'power pad'. The cell will only be used for analysis

 6) **WARN: No lower reported slew threshold for rising transition specified, assuming default value of  10%

 

From all these warnings and errors, I think there is a problem with my LEF file basically. What could I do to upgrade that? May be contact the technology provider for an upgraded version?

 Thanks in advance.

 

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  • Music
    Music over 15 years ago

     Save this life as aes.lef and try to use this file as your .lef file for your design.....

    • aes.txt
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