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I sent my project to your mail
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Please do the following;
1) Start Quartus and open your project
2) Click on the "Project Navigator" "Files" tab.
Note that the packages are not at the top. You need to move them first in the compilation order.
Even if Quartus can handle the packages out of order, if you use Quartus to automatically generate a simulation script for Modelsim, you will want the Modelsim script to have the package files first.
3) Click on the menu option "Project->Add/Remove Files from Project"
You'll see the files in the order seen in the attached JPG.
Highlight the package files by clicking on them, and the use the "Up" button to move them up in the compilation order.
Make sure all of the packages your design uses are listed in the GUI. If there are files missing, you will get synthesis errors.
If you want to use the fixed-point packages in their original form (without edits) take a look at the screen shot I just added to the example design above. Note how there is a library name next to those VHDL files.
Cheers,
Dave
Honored Contributor
