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Generating BOM from PCB File

wERerABbiT

Hi All,

I'm trying to write a skill function to:-

1) Automatically select all components in a board.

2) Group the selected components by Symbol 

3) Print to file a simple BOM list.

 

For the first part the code is 

axlClearSelSet()
axlSetFindFilter(?enabled "ALL" ?onButtons "NOALL")
axlSetFindFilter(?enabled "ALL" ?onButtons "symbols")
axlAddSelectAll()

 

1) The components are all selected, but how do I access the dbids?

2) After obtaining the dbids how do I access the Reference Designator and the Symbol Name?

 

Thanks All 

 

 

 

  • I am away from the reference documentation but I think, if you check the Allegro SKILL Language reference, that axlAddSelectAll will return a list, so myList=axlAddSelectAll() will contain a list of symbols the use a foreach(?) to work through the list, "something like" foreach(mySym in myList), and get the properties with "something like" myRefDes=mySym->RefDes in the loop. You could use the loop to build another list of just the required properties and then process that list later in the routine. I am sure that one of the regular SKILL "wizards" will have a more precise response! This might get you in the right direction for in the meantime.

  • Isn't it best to use the built-in BOM (condensed) report tool?  This way you don't mix parts of various values that use the same symbol.

    All the work is already done! 

  • this should get you started...

    </p><p>trythis = outfile(&quot;trythis.txt&quot; &quot;w&quot;)
    foreach( comp_db axlDBGetDesign()-&gt;components
    &nbsp;&nbsp;&nbsp; if( comp_db-&gt;symbol&nbsp;&nbsp; ; component is placed
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fprintf( trythis, &quot;%s -- %s -- %s -- %s &quot;, comp_db-&gt;package comp_db-&gt;class comp_db-&gt;deviceType comp_db-&gt;name)
    &nbsp;&nbsp;&nbsp; );end-if
    );end-foreach
    close( trythis)</p><p>

     

    HTH,

     

    Chris Walters

    local Cadence guru

    ()

  • Well that formatting sure went haywire...trying again... 

     

    trythis = outfile("trythis.txt" "w")
    foreach( comp_db axlDBGetDesign()->components
        if( comp_db->symbol   ; component is placed
            fprintf( trythis, "%s -- %s -- %s -- %s\n", comp_db->package comp_db->class comp_db->deviceType comp_db->name)
        );end-if
    );end-foreach
    close( trythis)

     

    HTH,

    Chris Walters

    local Cadence guru

    () 

     

     

  • Here's another one:
     
    (prog
      (
        symDefs       ; Symbol Definitions list
        totCount      ; total Symbol count
      )
     
      ; Get definitions from database
      (setq symDefs (axlDBGetDesign)->symdefs )
      (setq totCount 0)
      (setq BOM (axlDMOpenFile "ALLEGRO_TEXT" "bom_test" "w"))
     
      ; Go through them and print the info
      (fprintf BOM "+--------------------------------------------------+\n")
      (fprintf BOM "|             Silly little BOM Report              |\n")
      (fprintf BOM "+--------------------------+---------------+-------+\n")
      (fprintf BOM "| NAME                     | TYPE          | COUNT |\n")
      (fprintf BOM "+--------------------------+---------------+-------+\n")
      (foreach device symDefs
        (when (or (equal device->type "MECHANICAL" )
                  (equal device->type "PACKAGE"))
          (fprintf BOM "| %24s | %13s | %5d |\n"
                   device->name device->type (length device->instances))
          (fprintf BOM "+--------------------------+---------------+-------+\n")
          (setq totCount (plus totCount (length device->instances)))
        );  end-when
      );  end-foreach
      (fprintf BOM "| %40s | %5d |\n" "TOTAL" totCount )
      (fprintf BOM "+------------------------------------------+-------+\n")
      (axlDMClose BOM)
    );  end-prog
     
    This prints to a text file:
    +--------------------------------------------------+
    |             Silly little BOM Report              |
    +--------------------------+---------------+-------+
    | NAME                     | TYPE          | COUNT |
    +--------------------------+---------------+-------+
    |                  LOTCODE |    MECHANICAL |     1 |
    +--------------------------+---------------+-------+
    |                   GOV_ID |    MECHANICAL |     1 |
    +--------------------------+---------------+-------+
    |                  ULTAG_A |    MECHANICAL |     1 |
    +--------------------------+---------------+-------+
    |                   JC008B |       PACKAGE |     1 |
    +--------------------------+---------------+-------+
    |                MH250C131 |       PACKAGE |     5 |
    +--------------------------+---------------+-------+
    |                   S0603E |       PACKAGE |    65 |
    +--------------------------+---------------+-------+
    |                  STCD542 |       PACKAGE |     5 |
    +--------------------------+---------------+-------+
    |                  SCT3528 |       PACKAGE |    10 |
    +--------------------------+---------------+-------+
    |                   S1812A |       PACKAGE |     9 |
    +--------------------------+---------------+-------+
    |                    S0402 |       PACKAGE |    28 |
    +--------------------------+---------------+-------+
    |                   S1206B |       PACKAGE |     7 |
    +--------------------------+---------------+-------+
    |        SMLF64_050_281NWA |       PACKAGE |     2 |
    +--------------------------+---------------+-------+
    |              SFL_9KCB70C |       PACKAGE |     1 |
    +--------------------------+---------------+-------+
    |                  SLDLW31 |       PACKAGE |    20 |
    +--------------------------+---------------+-------+
    |                   SOT89B |       PACKAGE |     1 |
    +--------------------------+---------------+-------+
    |                  SCT3216 |       PACKAGE |     1 |
    +--------------------------+---------------+-------+
    |                SCT501700 |       PACKAGE |     4 |
    +--------------------------+---------------+-------+
    |                   SL1108 |       PACKAGE |     1 |
    +--------------------------+---------------+-------+
    |             LABELID_SILK |       PACKAGE |     1 |
    +--------------------------+---------------+-------+
    |             LABELPN_SILK |       PACKAGE |     1 |
    +--------------------------+---------------+-------+
    |                 S1208_NL |       PACKAGE |     2 |
    +--------------------------+---------------+-------+
    |             GLRFID40RING |       PACKAGE |     3 |
    +--------------------------+---------------+-------+
    |               LAYNO_SM_4 |    MECHANICAL |     1 |
    +--------------------------+---------------+-------+
    |                FILMBLK_4 |    MECHANICAL |     1 |
    +--------------------------+---------------+-------+
    |             SO08TSPWRPAD |       PACKAGE |     4 |
    +--------------------------+---------------+-------+
    |                    SL505 |       PACKAGE |     4 |
    +--------------------------+---------------+-------+
    |                                    TOTAL |   180 |
    +------------------------------------------+----+
     
    We have a property attached to all symbols, if I wanted to I get the property instead of the Package name and give a REAL bom (something that can't be done in the canned Allegro report)
     
    Everyone have a real good Halloween! :)
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