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Need guidance on how to select nets, pads, and vias with a certain property

mesaman000

Hi,

  I'm a beginner to SKILL programming and I took the basic tutorial class but seems to not be many resources for what I need to do.  I'm trying to initialize all pads, etch, via, nets, and shapes to a certain color like GREY.  Once I do that, I want to search the PCB editor database and identify which nets have a certain spacing class property: "1" "2" "3" or "4".   I want all pads and vias with the spacing class property 1 to be RED for example, all pads and vias with the spacing class property 2 to be BLUE, etc.

 Lastly, I want to export a PDF of this color map.  Can someone please help give me an idea of how I can achieve something like this?

 

Something I've started with is roughly like this:

design_dbid=axlDBGetDesign()

scset=axlCnsList("spacing") ;**Say my four spacing constraints are Default, 1, 2, 3, 4

**how do I traverse through all pads and vias?**

comp_dbid_list=design_dbid->components (pads isn't a property of design_dbid, is this the right method?)

foreach(comp_dbid comp_dbid_list

if comp_dbid->scset==1

**how do I change the color of these to RED? 

 

 

If anyone could provide any guidance or help it would be great!  Thank you! 

 

  • Hi Aldrin,

      Thanks for the tip.  Do you know if there's any other alternate command I can use to change vias of the same net a certain color that is compatible with 16.5? 

  • Hi

    I think you should go for a check version strategy axlVersion('version) and if 16.6 or newer use axlCustomColorObject

    If version is older than 16.6 then you would need to go for a script methodology (you may need to check if the version is newer than 16.2 where net coloring was introduced - code could give a warning that via coloring is not supported)

    Here you would generate and replay a script inside your skill program

    Your skill program could create a scriptfile (fprint) inside working directory, replay the script and then delete the script.

    Script code would look something like below (easiest way is to record a script and mimic the syntax) - as you can see the layer windows has settings for vias and their net names. (Notice my script is recorded in 16.6 - but syntax is probably the same for 16.5 and 16.3)

    setwindow pcb
    trapsize 83
    etchedit
    color192
    setwindow cvf.dialog
    cvf layer_mode
    setwindow pcb
    etchedit
    setwindow cvf.dialog
    cvf nets_mode
    cvf select_color_cell 66
    cvf nets_color vias/ad0 67
    cvf select_color_cell 85
    cvf nets_color vias/+5v 86
    cvf nets_color vias/vcc 86
    cvf apply
    cvf nets_color vias/gnd 86
    cvf apply
    cvf okay
    setwindow pcb

    Best regards

    Ole

  • Before I try writing a whole new script, I'm curious if I can still do this the previous way.

     

    Instead this time maybe I should try coloring the nets and then turning all etch/traces to grey afterwards.  

     After I set all nets to their respective colors, how do I color the etch on the top and bottom layers to grey?  Right now I have:

    q = axlLayerGet("ETCH"), q ->color = gray, axlLayerSet(q)

     

    and that does not work 

  • Hi

    I used some skill code like this with 16.5, maybe you can use it?

    layerlist = axlSubclasses("ETCH")

    foreach(layername layerlist

    lid = axlLayerGet(strcat("ETCH/" layername))

    lid->color = gray

    axlLayerSet(lid)

    lid = axlLayerGet(strcat("PIN/" layername))

    lid->color = gray

    axlLayerSet(lid)

    lid = axlLayerGet(strcat("VIA CLASS/" layername))

    lid->color = gray

    axlLayerSet(lid)

    )

    axlVisibleUpdate(t)

    Best regards

    Ole

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