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problem with dbFindProp()....?

Prabhu The ICL

Hi, All! I am using Cadence IC514 version.
I found a code which increases the parameters by a given factor in schematic.(i.e width and length etc...)
My problem is as follows...
I have two instances pch_25_mac with
              1)    "w"="5u" and "l"="500n" and                 2)    "w"="5u" and "l"="280n"(this is the default value for this parameter)
dbFindProp(inst prop) is returning it's id on first instance but it is not when the parameter value is default value.
How to resolve this problem...
Here is the code that I have got....

procedure(CCS_ModifyWL(lib cell factor "ttn")
let((cv new propId)
 cv = dbOpenCellViewByType( lib cell "schematic" "" "a")
 when( cv
   foreach(inst cv~>instances
     ;foreach(prop list("w" "l")
     cdf1=cdfGetInstCDF(inst)
     foreach(prop list("w" "wf" "l" "wr" "lr" "sumW" "sumL")
     if(member(prop cdf1~>parameters~>name) then
       ;when(propId=dbFindProp(inst prop)
   propId = cdf1~>prop
         new = sprintf(nil "%g" cdfParseFloatString(propId~>

value)*factor)
         printf("Changing instance %s property %s from %s to %s.\n"
           inst~>name propId~>name propId~>value new)
         dbReplaceProp(inst propId~>name "string" new)
       );when the prop exists
     );foreach prop
   );foreach inst
   ;dbCheck(cv)
   ;dbSave(cv)
   ;dbClose(cv)
 ); when the cellview was opened ok
);let
);procedure


Thanks in Advance

Prabhakar. K --- The Layout Engineer
SoCtronics

 

Parents
  • Hi, Andrew,
                       With your suggestion I have modified the code as follows....
    /**************************************************************************
    procedure(SoC_ModifyWL(libName cellName factor "ttn")
        let( (cv cdfId new)
        cv = dbOpenCellViewByType( libName cellName "schematic" "" "a")
        when(cv
        foreach(inst cv~>instances
            cdfId = cdfGetInstCDF(inst)
            foreach(paramId cdfId~>parameters
                    if(member(paramId~>name list("w" "wf" "l" "wr" "lr" "sumW" "sumL")) then
                        new = sprintf(nil "%g" cdfParseFloatString(paramId~>value)*factor)
                        printf("Changing instance %s property %s from %s to %s.\n" inst~>name paramId~>name paramId~>value new)
                        paramId~>value = new
                    );if
            );foreach
        );foreach
        );when
            dbCheck(cv)
            dbSave(cv)
            dbClose(cv)
        );let
    );SoC_ModifyWL
    cell_list = nil
    procedure(SoC_Traverse(@optional (cv geGetEditCellView()))
        printf("changing properties of -- %s -- cell\n" cv~>cellName)

        SoC_ModifyWL(cv~>libName cv~>cellName 1.1)
       
        foreach(inst cv~>instances
            if(!member(inst~>cellName cell_list) then
                cell_list = cons(inst~>cellName cell_list)
            if(inst~>libName == cv~>libName && ddGetObj(inst~>libName inst~>cellName "schematic") then
                println(inst~>name)
                master = dbOpenCellViewByType(inst~>libName inst~>cellName "schematic" nil "a")
                SoC_Traverse(master)
            );if
            );if
        );foreach
    );SoC_Traverse
    *********************************************************************/
    As I observed it's working fine ... Is this the good way...?
Reply
  • Hi, Andrew,
                       With your suggestion I have modified the code as follows....
    /**************************************************************************
    procedure(SoC_ModifyWL(libName cellName factor "ttn")
        let( (cv cdfId new)
        cv = dbOpenCellViewByType( libName cellName "schematic" "" "a")
        when(cv
        foreach(inst cv~>instances
            cdfId = cdfGetInstCDF(inst)
            foreach(paramId cdfId~>parameters
                    if(member(paramId~>name list("w" "wf" "l" "wr" "lr" "sumW" "sumL")) then
                        new = sprintf(nil "%g" cdfParseFloatString(paramId~>value)*factor)
                        printf("Changing instance %s property %s from %s to %s.\n" inst~>name paramId~>name paramId~>value new)
                        paramId~>value = new
                    );if
            );foreach
        );foreach
        );when
            dbCheck(cv)
            dbSave(cv)
            dbClose(cv)
        );let
    );SoC_ModifyWL
    cell_list = nil
    procedure(SoC_Traverse(@optional (cv geGetEditCellView()))
        printf("changing properties of -- %s -- cell\n" cv~>cellName)

        SoC_ModifyWL(cv~>libName cv~>cellName 1.1)
       
        foreach(inst cv~>instances
            if(!member(inst~>cellName cell_list) then
                cell_list = cons(inst~>cellName cell_list)
            if(inst~>libName == cv~>libName && ddGetObj(inst~>libName inst~>cellName "schematic") then
                println(inst~>name)
                master = dbOpenCellViewByType(inst~>libName inst~>cellName "schematic" nil "a")
                SoC_Traverse(master)
            );if
            );if
        );foreach
    );SoC_Traverse
    *********************************************************************/
    As I observed it's working fine ... Is this the good way...?
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