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 schCreateWire route method creates flight instead of full 

Last post Thu, Nov 8 2012 5:19 AM by Andrew Beckett. 3 replies.
Started by Reinice 08 Nov 2012 03:10 AM. Topic has 3 replies and 791 views
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  • Thu, Nov 8 2012 3:10 AM

    • Reinice
    • Top 150 Contributor
    • Joined on Fri, Jul 27 2012
    • Posts 59
    • Points 915
    schCreateWire route method creates flight instead of full Reply

    Hi All,

    I' am using schCreateWire to wire my Circuit Under Test(ex. bandgap) and it's stimulus(ex. vpulse, vpwl, gnd) automatically. Here is the context of my schCreateWire:

    schCreateWire(cvId "route" "full" list(xvalf:yvalf xvalnf:yvalnf) 0.0625 0.0625 0.0)

    My question is that why does this function having this context creates some "flight"(dashed type) as route method instead of "full"(solid type)? Meaning not all wires are created in solid type.

    Is this a limitation of schCreateWire?

    Best Regards,

    Reinice

    • Post Points: 20
  • Thu, Nov 8 2012 3:31 AM

    Re: schCreateWire route method creates flight instead of full Reply

     Hi Reinice,

    This typically happens when things are too congested - you see the same behaviour when you are routing manually in the schematic editor (it's the same router underneath).

    The flight lines are still connected, but there's just not space (or the router isn't smart enough to find a route, at least not without taking a long way around) to fulfill the route.

    Regards,

    Andrew.

     

    • Post Points: 20
  • Thu, Nov 8 2012 4:40 AM

    • Reinice
    • Top 150 Contributor
    • Joined on Fri, Jul 27 2012
    • Posts 59
    • Points 915
    Re: schCreateWire route method creates flight instead of full Reply

    Hi Andrew,

    I see. My design is too congested, I have lots of terminal pins in my Circuit Under Test and most of it are connected to it's assigned stimulus. Is this going to affect the analysis during spectre simulation? and creating netlist in ADE?

    Thanks and Regards,

    Reinice

    • Post Points: 20
  • Thu, Nov 8 2012 5:19 AM

    Re: schCreateWire route method creates flight instead of full Reply

     Hi Reinice,

    No, it shouldn't affect anything - the connectivity is still correct.

    Andrew.

    • Post Points: 5
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Started by Reinice at 08 Nov 2012 03:10 AM. Topic has 3 replies.