[Question] Using Hierarchical Structures and Source vs. Library

[thomas-woehrle]

Hi,

I am facing a simple issue, for which I didn't find a sustainable solution even after extensive searching.

I simply want to instantiate one module in another one.

For example in file FloatAdditionTB.v:

...
  FloatingAddition F_Add (
      .A(A),
      .B(B),
      .result(result)
  );
...

Now, the syntax checker (iverilog in my case, setup via Teros) gives an error "Include file FloatingAddition.v not found".

One way to solve this is by adding -I or -y flags with a path to the directory where FloatingAddition can be found. But those paths differ depending on which module is used.

So, is there a solution which Teros offers for this? I would assume that adding libraries and sources as it is explained in the documentation solves this (this approach is also suggested in the discussion here), but I do not even know what libraries and sources are in this context and how one should use them, since the documentation is pretty sparse on that.

I am willing to contribute to the documentation as soon as I know more about how to use TerosHDL properly.

[qarlosalberto]

For Verilog and SV TerosHDL only lint the files individually. For that you see those errors.

El vie, 8 nov 2024, 18:10, thomas-woehrle @.***> escribió:

Hi,

I am facing a simple issue, for which I didn't find a sustainable solution even after extensive searching.

I simply want to instantiate one module in another one.

For example in file FloatAdditionTB.v:

... FloatingAddition F_Add ( .A(A), .B(B), .result(result) ); ...

Now, the syntax checker (iverilog in my case, setup via Teros) gives an error "Include file FloatingAddition.v not found".

One way to solve this is by adding -I or -y flags with a path to the directory where FloatingAddition can be found. But those paths differ depending on which module is used.

So, is there a solution which Teros offers for this? I would assume that adding libraries and sources as it is explained in the documentation https://terostechnology.github.io/terosHDLdoc/docs/project_configuration/sources solves this (this approach is also suggested in the discussion here https://github.com/TerosTechnology/vscode-terosHDL/issues/284#issuecomment-1002828615), but I do not even know what libraries and sources are in this context and how one should use them, since the documentation is pretty sparse on that.

I am willing to contribute to the documentation as soon as I know more about how to use TerosHDL properly.

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[thomas-woehrle]

Okay, I see.

And what about other tools like the schematic viewer fe? Because it can not display the circuit, because of this error:

ERROR: Can't open include fileFloatingAddition.v'!`

I assume I have to adjust the YoSys configuration for this?

[thomas-woehrle]

And coming back to the other question of my original message: What are sources and libraries and for what can they be used? If there is any existing documentation for this, feel free to refer me to it :)

[qarlosalberto]

They can be used for simulations, compilations and VHDL.

There are two schematic viewers:

• for individual file: with the button in the editor
• for project: with the button in tree view in TerosHDL view