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Problem in using Hierarchical Blocks in OrCAD Capture 10.5

Discussion in 'CAD' started by mohit, Aug 11, 2006.

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  1. mohit

    mohit Guest

    Dear All,

    I am using OrCAD 10.5 Schematics Capture tool and my design requires
    same circuit to be used twice on the board. So I created a hierarchical
    block and pasted two instances of this hierarchical block in order to
    have same circuit repeated twice. But I am getting error while
    generating the netlist as reference designator remains same for the two
    instances of the circuit. For e.g if I have capacitor C1 in one
    instance (hierarchical block) then the reference designator
    corresponding to the same capacitor in the other instance (hierarchical
    block) is also C1.

    Please let me know of the solution. Needless to say, I would be very
    thankful.

    Regards,
    Mohit
     
  2. Guest

    Take a look in the help at the differences beteen simple and complex
    hierarchy. If your only using the block twice I would suggest simple
    hierarchy.

    colin
     
  3. Geo

    Geo Guest

    How would the pcb designer know which C1 you wanted connecting? You must have
    different component references if they are to go on one pcb.

    Geo
     
  4. Jim Thompson

    Jim Thompson Guest

    It should be showing something like, for example...

    C_HB1_C9

    and

    C_HB2_C9

    Perhaps, when you copied the block, the "HB" designator didn't change?

    Or it could be that CRAP called OrCAD Capture... I use the old
    original MicroSim PSpice Schematics.

    ...Jim Thompson
     
  5. Guest

    If you try to open one of the sub-sheets directly, you'll notice that
    it's asking which instantiation you want to open; it's keeping track of
    the annotations seperately.

    You need to re-annotate your design. Do an 'unconditional' update.
     
  6. mohit

    mohit Guest

    Dear All,

    Thanks for your prompt responses. The problem was solved by doing
    unconditional update first and then reannotating the design.

    Mohit
     
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