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Altera_Forum's avatar
Altera_Forum
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13 years ago

Generic component inside generic component

Hello.I am designing a vhdl code that has a generic size setting a bunch of operations.I cannot synthetize it with quartus (Error (10346): VHDL error at mac.vhd(7): formal port or parameter "width" m...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

You can put generics anywhere you like. The error is due to the fact you did not assign a value anywhere. Modelsim would have produced the same error had you tried to elaborate the design.

You can set generics using Quartus and Modelsim commands, however, you can also set a default value in your design, eg, 


generic (
    width : integer := 8
);

The width generic can then be overridden in Modelsim using vsim option -gwidth=16, and in Quartus via the set_parameter Tcl command (or using the GUI).

Cheers,

Dave