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Virtuoso Schematic: turn wires into flightlines

HoWei

Hi,

is it possible in the schematic window, to turn wires into flightlines ?

I do have imported standard cells (e.g. mux). In the standard-cell sub-block the components are arbitrarily placed and connected by name (displayed by flightlines/airwires).

Once I start moving the devices the flighlines materialize in to wires (with a rectangular connecitons) - this is not very useful and makes the schematic unusable.

I rather want to keep the flightlines and move the components until they are properly placed.

How can I do that ?

Parents
  • Andrew Beckett

    When you hit "m" (the "stretch" command, also under Edit-Stretch), then press "F3" to bring up the Options form. Change the "Route method" to "flight", and it will keep all the routing after stretches as flight lines.

    Regards,

    Andrew.

  • HoWei
    in reply to Andrew Beckett

    Well this works partly, but there remain still some connection points - means the flightlines go to these remaining connection points, and not directly to the other components pin.

    Is there a way to update the view to remove the connection points and create direct flightlines between components ?

  • Andrew Beckett
    in reply to HoWei

    Not that I'm aware of. There's a function to route flight lines (the schHiRouteFlightLine() function, usually on the 5 bindkey) which allows you to route flight lines (you can control the routing style via the F3 options form), but this can only be used on existing flight lines.

    There are some restrictions with flight lines - for example, you can only attach wire labels to actual wires, not flight lines.

    Might be possible to rip out the wiring and re-route using flight lines using SKILL, but not something I've ever written since normally people want to remove flight lines, not add them.

    Regards,

    Andrew.

Reply
  • Andrew Beckett
    in reply to HoWei

    Not that I'm aware of. There's a function to route flight lines (the schHiRouteFlightLine() function, usually on the 5 bindkey) which allows you to route flight lines (you can control the routing style via the F3 options form), but this can only be used on existing flight lines.

    There are some restrictions with flight lines - for example, you can only attach wire labels to actual wires, not flight lines.

    Might be possible to rip out the wiring and re-route using flight lines using SKILL, but not something I've ever written since normally people want to remove flight lines, not add them.

    Regards,

    Andrew.

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