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  3. Which variables give us the H/W information of the Core...

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Which variables give us the H/W information of the Core in Cadence Innovus?

vinayelk
vinayelk over 4 years ago

Hi,

I am trying to develop a TCL script to automate the process of layout generation on Innovus.

In order to do precise placements of pin in the script, I need some variables to get the information about the height and width of the Core so that I can place them at precise locations through the script.

Instead of some hard coded information for the start and end points of pin placement, I would like to do something like in the second command which would depend on the Core dimensions.

editPin -fixOverlap 1 -spreadDirection clockwise -side Left -layer 3 -spreadType range -start 0.0 5.0 -end 0.0 500.0 -pin {{EEGIn[0]} {EEGIn[1]} {EEGIn[2]} {EEGIn[3]} {EEGIn[4]} {EEGIn[5]} {EEGIn[6]} {EEGIn[7]} {EEGIn[8]} {EEGIn[9]} {EEGIn[10]} {EEGIn[11]} {EEGIn[12]} {EEGIn[13]} {EEGIn[14]} {EEGIn[15]} clk}

editPin -fixOverlap 1 -spreadDirection clockwise -side Left -layer 3 -spreadType range -start 0.0 0.1*Height -end 0.0 0.9*Height -pin {{EEGIn[0]} {EEGIn[1]} {EEGIn[2]} {EEGIn[3]} {EEGIn[4]} {EEGIn[5]} {EEGIn[6]} {EEGIn[7]} {EEGIn[8]} {EEGIn[9]} {EEGIn[10]} {EEGIn[11]} {EEGIn[12]} {EEGIn[13]} {EEGIn[14]} {EEGIn[15]} clk}

Could anyone please suggest if there is a way to it?

Thanks,
Vinay

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  • Dimo M
    Dimo M over 4 years ago

    Hi Vinay,
    you can use dbGet commands (or get_db in CUI). For simple rectangular block you can use the bounding box of the core area:
    dbGet top.fPlan.coreBox_ury  ( CUI:  get_db current_design .core_bbox.ur.y )

    So your command will look something like:
    editPin -start "0.0 [expr 0.1*[dbGet top.fPlan.coreBox_ury]]" -end "0.0 [expr 0.9*[dbGet top.fPlan.coreBox_ury]]"  ...

    Dimo

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