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Avichay's avatar
Avichay
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5 years ago

llegal connection on I/O input buffer primitive [1704]

Hi, I have this issue with net that drives out to destinations other than the specified I/O. i saw it also on the EMIF DDR3 Intel sample design i generated .. it happened when instantiation in th...
Ash_R_Altera's avatar
Ash_R_Altera
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5 years ago

Are the inputs to the buffer, io and iobar connected as ports at the top entity, ecb.vhd?


  • Avichay's avatar
    Avichay
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    5 years ago

    no , you are right , one of them was not connected on top.

    It now does analysis ok.

    One pin in the top was not defined .

    The error message is 'complicated' but solution is simple.

    • Avichay's avatar
      Avichay
      Icon for New Contributor rankNew Contributor
      5 years ago

      thanks !