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How to find pin name using SKILL

fithawi

Hi there

How can I find the logical pin name of a symbol using SKILL?

The script below can find the Padstack Name, XY location of the pin, and Pin number. However, I am getting the wrong value for the pin name.

procedure(Diff_Pin_Net()
  prog(( Pin_Log_File padStackN pinName pinNumber pinx piny)
 
   ; Open the log file and print the header info
   ; 
   Pin_Log_File = outfile("./dummy_net_list.log" "w")
   fprintf(Pin_Log_File "\tDummy net logfile\n\n\n")
   fprintf(Pin_Log_File "\tTotal dummy pin: %L\n\n" length(axlDBDummyNet('pin)))
   fprintf(Pin_Log_File "\t%s\t\t%s\t\t%s\t%s\n\n\n" "Padstack Name" "---XY---" "Pin Name" "Pin number")
   
   ; 
   
    foreach( mapc x axlDBDummyNet('pin)
    padStackN = x->name
    pinName = car(car(x)->functionPins)->name
    pinx = car(x->xy)
    piny = cadr(x->xy)
    fprintf(Pin_Log_File "\t %s \t(%.3f %.3f)\t%L\t\t%s\n\n"  padStackN pinx piny pinName axlDbidName(x)))
     
   ; Highlight the dummy pins
   ;
   axlClearSelSet()
   axlCustomColorObject(axlDBDummyNet('pin))

   ; Close the log file, refresh the graphics, and open a viewlog
   ;
   close(Pin_Log_File)
   axlShell("redisplay")
   axlShell("viewlog ./dummy_net_list.log")
  );end prong
  ); end procedure
Parents
  • 0

    Hey fithawi 

    I checked your code and I have these comments for you: 

    fithawi said:
    padStackN = x->name

    This line doesn't look right ... I believe it should be car(x)->name

    fithawi said:
    pinName = car(car(x)->functionPins)->name

    This line I can confirm is right. And I believe this is the one that you're looking for. 

    Just as an example, I tested it on the Cadence Demo board and got this: 

    If you're not getting the right pin name, maybe the error is somewhere else in your design? Let me know if you still have trouble with this. Maybe I can contact you via a private message and discuss it. 

Reply
  • 0

    Hey fithawi 

    I checked your code and I have these comments for you: 

    fithawi said:
    padStackN = x->name

    This line doesn't look right ... I believe it should be car(x)->name

    fithawi said:
    pinName = car(car(x)->functionPins)->name

    This line I can confirm is right. And I believe this is the one that you're looking for. 

    Just as an example, I tested it on the Cadence Demo board and got this: 

    If you're not getting the right pin name, maybe the error is somewhere else in your design? Let me know if you still have trouble with this. Maybe I can contact you via a private message and discuss it. 

Children
  • 0 in reply to JuanCR

    Hi both, 

    I also reviewed this code snippet, and the issue seems arise at the mapc function in the foreach loop. 

    Using the mapc lets the foreach function iterate over each element of the argument list. There is therefore no need to do a car(x)->something since x is a single item from the axlDBDummyNet('pin) list. 

    By changing the pinName = car(car(x)->functionPins)->name to pinName = car(x->functionPins)->name the whole function works as intended. 

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