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Specifying options for leMarkNet() with SKILL interactively

DanielDing

Did quite some search but found no solutions on this one.

I'm trying to set the following variable so leMarkNet() would prompt the users which layer to start tracing, when multiple shapes/nets exist at an entry point:

envSetVal("layout" "markNetSelectOverlapLayer" 'boolean t)

Somehow this only works when pressing "F9" or selecting trace net from Virtuoso GUI.

If I call leMarkNet(xcoord:ycoord) at CIW, it does not prompt.

Is pressing F9 doing additional things here?

A second question along the same direction: is there a way pass a skip list of nets to leMarkNet()?

I would like to skip VDD,VSS nets as they are usually time-consuming to trace.

Thanks much!

Duo

  • Duo,

    The whole point of leMarkNet() is that it doesn't need interactions with the user. So that's not going to prompt you. If you want it to prompt you, you'd have to continue using the "Hi" version of the function, but you can send it the point in advance:

    preXY(25.496:61.683) leHiMarkNet()

    I don't know what your F9 bindkey is doing (that's a local customisation), but my guess is that this is calling leHiMarkNet() - it could be calling the Net Tracer (which is slightly different functionality that's in VLS XL).

    Skipping a list of nets isn't possible with mark net because it doesn't look at the connectivity - the whole point is that it chases the shapes which are physically connected, and so because of that it has no idea which is VDD, which is VSS and so on.

    Regards,

    Andrew.

  • in reply to Andrew Beckett

    Much appreciate it, Andrew. This saves me a lot time! -Duo

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