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Count via by netlist help ?

luanvn81

 Hi everybody! I'm writting a skill to count number of via of net in a list nets. before I show my problem, please see my code below:

......................

 ;========Declare Subclasses==========
subclasses = '( "VP24", "VP2" )

;========Check input file==========
if(isFile("listnet.txt") then
netlist=nil
inPort = infile( "listnet.txt" )
when( inPort
while( gets( nextline inPort )
nextline = car(parseString(nextline, "\n"))
nextline = car(parseString(nextline, " "))
netlist=cons(concat(nextline),netlist)
);end while
close( inPort )
netlist=reverse(netlist)
;========== Write out file===============================================
    writeOutFile = outfile( "./Count_via_report.csv" )

;========== Format Intro for outfile ====================================
intro="Net_name,"
foreach(subclass, subclasses
    sprintf(intro,strcat(intro, " Layer_", subclass,"," ))
);end foreach
fprintf(writeOutFile, "%s\n\n",intro)

;==========format what to do for each layer and caculateing them=============================
foreach(subclass, subclasses
axlVisibleDesign(nil)
axlVisibleLayer(strcat("via class/", subclass) t)
axlVisibleUpdate(t)
axlSetFindFilter(?enabled '(noall vias) ?onButtons '(noall vias))
allViasInSubclass = axlGetSelSet(axlAddSelectAll())
axlClearSelSet()

;========Create for each net in each layer a symbol in order to count number vias of that net=========
foreach(net, netlist
    sum_net = concat(net, "_", subclass)
    set(sum_net , nil)
    sum_net  = setof(via, allViasInSubclass, via->net->name == get_pname(net))
);end foreach net
);end foreach subclass

;===========Format output data for outfile =============================
foreach(net, netlist
line = ""
  foreach(subclass, subclasses
    sum_net = concat(net, "_", subclass)
    sprintf(line, "%-30s, %-6L",line, length(eval(sum_net)) )
  );end foreach subclass
fprintf(writeOutFile, "%s %s\n", net, line)
);end foreach net of netlist

fprintf(writeOutFile "END OF FILE")
close(writeOutFile)
........................

my problem is: When i get number vias for each net by command    "setof(...... ) "  ,  sum_net is a list and having values in it. But when I recall them to display in output file , It become a symbol. 

  How can i fix it? Please help me.

Thanks !

Luan.

 

  • A few things to try:

    It looks like "net" is just text whereas get_pname() is looking for a symbol.  This may be causing the error.
    Try:  sum_net  = setof(via, allViasInSubclass, via->net->name == net)
    Then you can use length(sum_net) to get the number of vias.

    Notes:
      It looks like you'll only get the vias from the last subclass in subclasses.  Check your loops and consider how you want to get this information to the output data section.
      Also, your output data section will probably need some changes.

    Hope this helps.

  •  Hi Randy R!

     Thank for your reply,  I don't know why but when I replace  command  setof(....)  by below code, my skill works OK.

       here is my replace code : 

     foreach(net, netlist
        sumnet = concat(net, "_", subclass)
        set(sumnet, nil)
       foreach(via allViasInSubclass
         when(via->net->name == get_pname(net)
           set(sumnet, cons(via, eval(sumnet)))
        );end when
       ); end foreach via
    );end foreach net

    ................

    my output code still works without problems, I only want to try to use command setof  for this. Who can help me fix it ?

    Thank!

    Luan.

    Viet Nam.

     

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