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How to set / overwrite instance inherited netset property in layout view?

sl3j

 How to set / overwrite instance inherited netset property in layout view?

I am trying something like this

dbCreateProp(myInst "vdd"  "netSet"    vdd1)

It does not seem to work, the connectivity in Layout XL does not show any change!

The signal vdd1 already alread exists in the layout.

 Any way to change signal mapping of instance terminals?

 

Parents

  •  As promessed for sharing the findings,

    here is the solution I propose based on your hints.  It works at the cellview level.

    I have not yet tried if we should map both "gnd" and "gnd!" terminals to enable inherited connection propagation down into the hierarchy,

    thanks

     

    -Sami

     

     

    procedure(SLMapInstTerm(cv InstName TermName NetName)
    let( (myInst myInstTerm myNet )

    if( myInst=dbGetInstanceByName(cv InstName) then

    ; creating new net or getting it if existing
    if( (myNet = dbFindNetByName(mycv NetName))  then
         else  
        myNet = dbCreateNet(mycv NetName)
        printf(" --I-- New Net %s created \n" myNet~>name)
    )
    ; Mapping the terminal by name to the new net
    foreach(myInstTerm myInst~>instTerms
            if(myInstTerm~>name == TermName then
                myInstTerm~>net = myNet    
                printf(" --I-- Connection remapped   %s :  term %s   -> %s\n" myInst~>name TermName  myNet~>name))
            )
    else
        printf(" --W-- Instance Not found : %s \n" myInstName)
    )
    ))
    ;===================


    ; quick test

    mydb=hiGetCurrentWindow()
    mycv=mydb~>cellView

    SLMapInstTerm(mycv "I1" "gnd!" "GND1")
    SLMapInstTerm(mycv "I2" "gnd!" "GND1")

Reply

  •  As promessed for sharing the findings,

    here is the solution I propose based on your hints.  It works at the cellview level.

    I have not yet tried if we should map both "gnd" and "gnd!" terminals to enable inherited connection propagation down into the hierarchy,

    thanks

     

    -Sami

     

     

    procedure(SLMapInstTerm(cv InstName TermName NetName)
    let( (myInst myInstTerm myNet )

    if( myInst=dbGetInstanceByName(cv InstName) then

    ; creating new net or getting it if existing
    if( (myNet = dbFindNetByName(mycv NetName))  then
         else  
        myNet = dbCreateNet(mycv NetName)
        printf(" --I-- New Net %s created \n" myNet~>name)
    )
    ; Mapping the terminal by name to the new net
    foreach(myInstTerm myInst~>instTerms
            if(myInstTerm~>name == TermName then
                myInstTerm~>net = myNet    
                printf(" --I-- Connection remapped   %s :  term %s   -> %s\n" myInst~>name TermName  myNet~>name))
            )
    else
        printf(" --W-- Instance Not found : %s \n" myInstName)
    )
    ))
    ;===================


    ; quick test

    mydb=hiGetCurrentWindow()
    mycv=mydb~>cellView

    SLMapInstTerm(mycv "I1" "gnd!" "GND1")
    SLMapInstTerm(mycv "I2" "gnd!" "GND1")

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