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Altera_Forum's avatar
Altera_Forum
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15 years ago

Error: Node instance "U1" instantiates undefined entity

I have a verilog code working with multiple files. I use synopsys library DW01_addsub, DW02_mult, DW01_add, DW01_sub and DW03_pipe_reg so that the resource can be optimal.

When I tried to start Alalysis & Elaboration (Quartus II version 10.1), there are many errors:

Error: Node instance "U1" instantiates undefined entity "DW01_addsub"

Error: Node instance "mult" instantiates undefined entity "DW02_mult"

Error: Node instance "add" instantiates undefined entity "DW01_add"

Error: Node instance "sub" instantiates undefined entity "DW01_sub"

Error: Node instance "U1" instantiates undefined entity "DW03_pipe_reg"

I think there might be because of no link (path) to the synopsys library DW, is it right?

How to link with the synopsys library?

2 Replies

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

    Yes that the problem. If you have the verilog/vhdl source for the library elements you add them through assignment->settings->Libraries

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

    I provide this path "c:/altera/10.1/quartus/eda/synopsys/dw/lib" in both Global Libraries and Project Libraries. It is still show the errors.

    Did I provide the right path? or any other ideas?