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 Forcing via connections 

Last post Fri, May 3 2013 3:34 AM by tmd63. 2 replies.
Started by tmd63 03 May 2013 02:16 AM. Topic has 2 replies and 701 views
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  • Fri, May 3 2013 2:16 AM

    • tmd63
    • Top 200 Contributor
    • Joined on Mon, Jul 23 2012
    • Stonehouse, Gloucestershire
    • Posts 39
    • Points 855
    Forcing via connections Reply

     I have a multi-layer design with multiple ground plane layers. But these have issues with ground loops. How can I set something in PCB Editor 16.5 that will only connect vias to one ground plane layer and leave all other layers unconnected, so that I can use a single ground connection point.

    The impossible we do straight away. Miracles take a little longer.
    • Post Points: 20
  • Fri, May 3 2013 3:08 AM

    • oldmouldy
    • Top 10 Contributor
    • Joined on Tue, Jul 15 2008
    • Woking, Surrey
    • Posts 1,385
    • Points 23,615
    Re: Forcing via connections Answer Reply
    Set the Thermal Relief types for Global Dynamic Parameters to None. Select the shape that you do want to connect, Shape>Select Shape or Void, right-click>Parameters and set the Thermal Relief type as required. At the Pin / Via that you want to connect the shapes, hover over the Pin / Via, right-click>Property Edit, set the Dyn_Thermal_Conn_Type for the required connection type. IF you want 8-way you will also need to set the Global Max setting to 8, or set the Dyn_Max_Thermal_Conns property to 8 (The Max is usually 4 by default)
    • Post Points: 20
  • Fri, May 3 2013 3:34 AM

    • tmd63
    • Top 200 Contributor
    • Joined on Mon, Jul 23 2012
    • Stonehouse, Gloucestershire
    • Posts 39
    • Points 855
    Re: Forcing via connections Reply

     That almost worked. I set the thermal relief for global dynamic shapes to none. Selected the shape where I wanted the connections and RMB the selected parameters and changed the thermal relief for that layer without problems.

    But the single pin to connect the other planes did not work. I have added 4 traces from that pin to the copper pour for each layer instead. This has worked this way.

    Thanks.

    The impossible we do straight away. Miracles take a little longer.
    • Post Points: 5
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Started by tmd63 at 03 May 2013 02:16 AM. Topic has 2 replies.