Bidirectional bus connection

Discussion in 'VHDL' started by yaron866, Oct 16, 2012.

  1. yaron866

    yaron866

    Joined:
    Oct 16, 2012
    Messages:
    1
    Hello,
    I have a I\O to my fpga which is inout signal 16 bit width (data bus from my flash). This bus is going internaly to another sub-modul and there it is connected to an inout port.
    I want in the top-level to connect the inout port to an in port of a different sub-modul.
    Meaning, to create a 'T' junction in the inout bus to an in port.
    INOUT(internal sub-modul) -----------------INOUT (external I\O)
    ................................................|
    ................................................|
    ................................................|
    .........................................IN (internal sub-modul)
    I have tried to connect the inout port to another signal in the top level and then connect it to the in port, but my synthesis dosent like that.
    I have tried to use IOBUF primitive but still it pops error message.
    I use ISE 13.2 synthesis tool.

    Thank you in advance.
     
    yaron866, Oct 16, 2012
    #1
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