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c-thaler's avatar
c-thaler
Icon for Occasional Contributor rankOccasional Contributor
2 years ago
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Top level entity has multiple architectures. How to configure/select?

I have a Quartus VHDL project that I use for trial synthesis, just to get a quick overview of timing and resource usage.


Is there a way in Quartus to select/configure the architecture for the top level entity in a VHDL project?

Or do I have to remove the unused architecture files? (Architecture and entity descriptions are in separate files.)

Hdl
  • SyafieqS's avatar
    SyafieqS
    2 years ago

    Is there a way in Quartus to select/configure the architecture for the top level entity in a VHDL project?

    - I would say NO, In Quartus, the architecture for the top-level entity in a VHDL project is determined by the synthesis and optimization processes rather than through explicit configuration within the software itself. Therefore, there is no direct way to select or configure the architecture for the top-level entity in Quartus.


    Or do I have to remove the unused architecture files? (Architecture and entity descriptions are in separate files.)

    - If you have multiple architecture files for the top-level entity in your project, Quartus will analyze and synthesize each architecture separately. It will then choose the one that best meets the design requirements and constraints.


4 Replies

  • SyafieqS's avatar
    SyafieqS
    Icon for Super Contributor rankSuper Contributor
    2 years ago

    Is there a way in Quartus to select/configure the architecture for the top level entity in a VHDL project?

    - I would say NO, In Quartus, the architecture for the top-level entity in a VHDL project is determined by the synthesis and optimization processes rather than through explicit configuration within the software itself. Therefore, there is no direct way to select or configure the architecture for the top-level entity in Quartus.


    Or do I have to remove the unused architecture files? (Architecture and entity descriptions are in separate files.)

    - If you have multiple architecture files for the top-level entity in your project, Quartus will analyze and synthesize each architecture separately. It will then choose the one that best meets the design requirements and constraints.


    • c-thaler's avatar
      c-thaler
      Icon for Occasional Contributor rankOccasional Contributor
      2 years ago

      I will move the architectures to separate files then and include only one of them in my project.

      Thanks!

  • SyafieqS's avatar
    SyafieqS
    Icon for Super Contributor rankSuper Contributor
    2 years ago

    I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, Please login to https://supporttickets.intel.com/, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.


    p/s: If any answer from community or Intel support are helpful, please feel free to mark as solution, give Kudos and rate 5/5 survey