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Altera_Forum's avatar
Altera_Forum
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16 years ago

Simple block diagram problem

I have begun to use quartus II (7.2) and im very new to it, and so im assuming if you take a look at my block diagram you will see the problam straight away.I created a simple block diagram that implements a truth table.

Basically when i compile my project, i get a bunch of errors of this sort:

--- Quote Start ---

Error: Port "INI1" of type AND3 of instance "inst1" is missing source signal

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I have uploaded a picture of the block diagram, and a zipped project folder..

I think i know what the problem may be myself, but have no soloution...

In the block diagram all my connections have an 'X' marker...i recall using quartus block editor befor and not seeing those, at that my stuff would compile...But i cant draw connections without that 'X' mark now.

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    --- Quote Start ---

    I have begun to use quartus II (7.2) and im very new to it, and so im assuming if you take a look at my block diagram you will see the problam straight away.I created a simple block diagram that implements a truth table.

    Basically when i compile my project, i get a bunch of errors of this sort:

    I have uploaded a picture of the block diagram, and a zipped project folder..

    I think i know what the problem may be myself, but have no soloution...

    In the block diagram all my connections have an 'X' marker...i recall using quartus block editor befor and not seeing those, at that my stuff would compile...But i cant draw connections without that 'X' mark now.

    --- Quote End ---

    Hi,

    the X indicates that the lines are not connected. I assume that you used the "line" tool for drawing the lines. You have to use the "Node" tools for the wires. The line tool is only for drawings. Look to attachment .

    Kind regards

    GPK