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Altera_Forum's avatar
Altera_Forum
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13 years ago

Qsys: Component Editor Parameter Error

I am trying to create a custom component to be imported in qsys. However, it can't recognize certain parameter and localparam in my .v file. Besides, it generates an error: Width of port av...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

The component interface isn't very smart and needs all port widths to be either a constant, a top level parameter or a simple expression with only integers and top level parameters. It probably isn't happy with your local parameters. I suggest to either put the whole expression (ex (SINGLE_ENTRY==1) ? 3 : CSR_ADDR_WITDH) in the port width, or use a top level parameter instead of LOCAL_CSR_ADDR_WITDH and put your logic with SINGLE_ENTRY in the tcl file instead.