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How to find if Padstack is used or not?

Kirti Sikri

How to find if the padstack in a design is used or not using Allegro Skill?

Thanks,

Kirti

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  • Below is a simple skill procedure that counts the padstack usage on symbol definitions & nets, then reports any padstacks that are not used

    procedure(PadStackUsage()
        let((PadTable)
            (PadTable = makeTable("PadTable" nil))
            foreach(pad ((axlDBGetDesign)->padstacks)
                (PadTable[pad->name] = 0)
            )
            foreach(symdef (axlDBGetDesign()->symdefs)
                foreach( pin symdef->pins
                    (PadTable[pin->name] = add1(PadTable[pin->name]))
                )
            )
            foreach(net ((axlDBGetDesign)->nets)
                foreach(branch (net->branches)
                    foreach(child (branch->children)
                        if(((child->objType) == "pin") || ((child->objType) == "via") then
                            (PadTable[child->name] = add1(PadTable[child->name]))
                        )
                    )
                )
            )
            foreach(name PadTable
                when(eq(PadTable[name] 0) axlMsgPut("padstack %s not used" name))
                remove(name PadTable)
            )
        )
    )

Reply

  • Below is a simple skill procedure that counts the padstack usage on symbol definitions & nets, then reports any padstacks that are not used

    procedure(PadStackUsage()
        let((PadTable)
            (PadTable = makeTable("PadTable" nil))
            foreach(pad ((axlDBGetDesign)->padstacks)
                (PadTable[pad->name] = 0)
            )
            foreach(symdef (axlDBGetDesign()->symdefs)
                foreach( pin symdef->pins
                    (PadTable[pin->name] = add1(PadTable[pin->name]))
                )
            )
            foreach(net ((axlDBGetDesign)->nets)
                foreach(branch (net->branches)
                    foreach(child (branch->children)
                        if(((child->objType) == "pin") || ((child->objType) == "via") then
                            (PadTable[child->name] = add1(PadTable[child->name]))
                        )
                    )
                )
            )
            foreach(name PadTable
                when(eq(PadTable[name] 0) axlMsgPut("padstack %s not used" name))
                remove(name PadTable)
            )
        )
    )

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