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Hierarchical design: how to duplicate a port on both side of a module

Former Member

Hi,

maybe I've the wrong design approach.

But, consider you have three modules in a hierarchical design, call them A, B and C.

And you have a signal, call it EK, that begins on module A. It has to go into module B by a connector on one side of module B.

The same signal EK exits from module B by another connector placed on the opposite side, then it goes into module C.


I'd like to use the hierarchical design as a top view of the whole module assembly, so I need to duplicate port/signal EK on the left and the right side of module B.


Is there any way to get it with Eagle v7.2?


Thaks in advance,


Luca

  • 0

    Hi Luca,

     

    I hope you are doing well. I would encourage a different design approach since it's not clear whether the modules manipulate the EK signal at all or are simply passing it on or what. What you might do is create two port per module. For example, Mod A could have EK-A and EK-B. Mod B would then have EK-B and EK-C and so on and so forth.

     

    If you could provide more details about the circuit, or why you want to implement the circuit this way, I may be able to give more direction.

     

    hth,

    Jorge Garcia

    Cadsoft Support

  • 0 in reply to Jorge_Garcia

    Hi Jorge,

    thanks for your kind reply.

     

    The project is going to be developed on three boards, and I'd like to use the hierarchical design as "the big picture". Doing so, each board is represented by a module on the hierarchical schematic.

    Board/Module A generates some signals, among them there is the EK signal. Module/board B will be stacked upon board A just like the Arduino's shields do.

    Module/board B receives all the signals from board A via a connector (call it J1 for clarity), then it routes EK signal to board C using another connector (call it J2). EK signal is not used by board B, it is simply routed from J1 to J2 on board B.

     

    So the problem is: on module/board B there are two connectors, J1 and J2. and there is a signal, EK, that comes from J1 and goes to J2. How to place two ports on module B in the hierarchical schematic, one representing EK signal on the J1 connector between board A and board B; one representing EK passing through connector J2 between board B and board C?

     

    Your idea to use different  port name is interesting, I could use two ports on module B, one called EK_A and the other called EK_C. This means I have to draw two nets on Mod B schematic, EK_A and EK_C, because ports take their names from the module nets' names. But, how to connect two different nets together? Eagle asks me to rename one of them.

     

    Maybe I don't have fully understood the follow up of your idea, any suggestion is welcome.

     

    Thanks in advance,

    Luca