Finding Pwr and Gnd sensitivity property of a pin

Hi Dennis,

I think the attribute that you are looking for is 'sigType' for the signal type, but this is an attribute of the net object, not the terminal:

procedure(schematicPins(@key libName cellName "tt")
  let( (libId cellId cvId terminals output)
   
   libId = ddGetObj(libName)
   when(cellId = ddGetObj(libName cellName)
     cvId = dbOpenCellViewByType(libId cellId~>name "schematic" "" "r")
     terminals = cvId~>terminals
;    output = list() ;; not needed, the let initializes output to nil
      foreach(a terminals
;       name=a~>name  ;; not declared, but not needed either
;       direction=a~>direction  ;; ditto
       output= cons(list(a~>name a~>direction a~>net~>sigType) output)
      );end foreach
    ); end when
    output
  );end let
);end procedure

I've made a few other changes ('-' to '~', adding a type template to the function, adding a 'when' condition) - you probably should add a 'when' for the libId line also, in case a bad value is passed in.

Best regards,

Lawrence.

Hi Lawrence,

Thanks, your improvements are indeed better and cleaner!

Unfortunately the sigType is not what I am looking for the two attributes I am looking for can be found in the below screenshot

Pwr Sensitivity and Gnd Sensitivity.

The designer can set these extra properties on a pin, we could use them to further instruct digital tools how to connect towards the analog (which powerdomain).

I have been searching, also in the net properties, but I just can't find them.

But thanks for replying!

BR
Dennis

Dennis,

You need to use these functions to set the power and ground sensitivities:

dbSetTermGroundSensitivity(termId groundTermId)
dbSetTermPowerSensitivity(termId powerTermId)

Note that this is set on the terminal (not the pin) and needs to refer to the terminal id of the power or ground that you're making it sensitive to. There is also dbGetTerm{Power|Ground}Sensitivity to retrieve the info too.

Andrew

Hi Andrew,

Thank you, this helped me a lot!

My updated code:

procedure(getPinInfo(@key libName cellName (type schematic) (mode "r") "tt")
  let( (libId cellId cvId terminals output PwrSensitivity GndSensitivity)
   when(libId = ddGetObj(libName)
    when(cellId = ddGetObj(libName cellName)
      cvId = dbOpenCellViewByType(libId cellId~>name type "" mode)
       terminals = cvId~>terminals
       foreach(a terminals
        termId=a
        PwrSensitivity=dbGetTermSupplySensitivity(termId)~>name
        GndSensitivity=dbGetTermGroundSensitivity(termId)~>name
         if(PwrSensitivity==nil
             PwrSensitivity= ""
           )
         if(GndSensitivity==nil
             GndSensitivity= ""
            )  
         output= cons(list(a~>name a~>direction PwrSensitivity GndSensitivity) output)
       );end foreach
     ); end when
     );end when
    output
  );end let
);end procedure

BR
Dennis