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  3. The issue in checkDesign report

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The issue in checkDesign report

Greatrebel
Greatrebel over 15 years ago

 Hi All,

 I got some issues in checkDesign report. Firstly, in Top level Floorplan Check, I saw three iterms FALSE: Placement grid on Mfg. grid, User grid a multiple of Mfg. grid, and User grid a multiple of Mfg. grid. I do not know what these mean? Are they really important warnings. 

 Secondly,there are a few cells whose dimensions are not interger multiple of their site, so I got Cell dimension multiple of Site report.

I am wondering whether the dimension issue is important or not?

 

Thanks in advance

 

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  • Greatrebel
    Greatrebel over 15 years ago

     I checked the LEF files. Actually, there is a site called pad defined in lef file for IO pad. In bond pad lef file, the bond pad macros have a statement "site pad ;", but there is no definitions for site pad in that file. So the site defined for IO pad does not match bond pads. I am wondering can I remove the site statement for bond pad or define a new site with a different name for bond pad? And is the site really important for PnR?

     Thanks a lot

     

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  • Greatrebel
    Greatrebel over 15 years ago

     I checked the LEF files. Actually, there is a site called pad defined in lef file for IO pad. In bond pad lef file, the bond pad macros have a statement "site pad ;", but there is no definitions for site pad in that file. So the site defined for IO pad does not match bond pads. I am wondering can I remove the site statement for bond pad or define a new site with a different name for bond pad? And is the site really important for PnR?

     Thanks a lot

     

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