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FabianL's avatar
FabianL
Icon for Occasional Contributor rankOccasional Contributor
4 months ago
Solved

NIOS-V QSYS Warning Properties (associatedClock) have been set on

Hello,

I have a really basic setup of a NIOS V system, but get Warnings in QSYS (using Quartus 25.1 Standard) about Properties of associatedClock:

System:

Warning: 

Warning: nios_subsystem.intel_niosv_m_0: Properties (associatedClock) have been set on interface reset - in composed mode these are ignored
Warning: nios_subsystem.intel_niosv_m_0: Properties (associatedClock,associatedReset) have been set on interface instruction_manager - in composed mode these are ignored
Warning: nios_subsystem.intel_niosv_m_0: Properties (associatedClock,associatedReset) have been set on interface data_manager - in composed mode these are ignored

Questions:

  1. What is "composed mode" and how can I control it? There is no NIOS Parameter associated with it
  2. This appears in a basic setup simply by adding NIOS V to the system. How do I get rid of this warning?

best regards

Fabian

Nios Architecture
Nios Cpu
  • LiangYuG_Altera's avatar
    LiangYuG_Altera
    3 months ago

    Hi FabianL​ 

    FabianL wrote:

    Would it be possible to waive these warnings or disable these warnings on a project setting basis?

    Sorry for the late reply.
    We were looking for ways to waive/suppress this warnings in Quartus Std, but unfortunately none is found.

    Regards,
    Liang Yu

4 Replies

  • LiangYuG_Altera's avatar
    LiangYuG_Altera
    Icon for Contributor rankContributor
    4 months ago

    Hi Fabian,

    What is "composed mode" and how can I control it? There is no NIOS Parameter associated with it

    It is referring to use cases where you have a system (e.g., system.qsys) that contains another sub-system (e.g., nios_subsystem.qsys). It is not a NIOS parameter.

    This appears in a basic setup simply by adding NIOS V to the system. How do I get rid of this warning?

    You can ignore it.

    The properties causing the warning are set on the inner sub-component's interface, but Quartus sees that these properties aren't being explicitly mapped or necessary for the top-level subsystem assembly.  

    It is safe to ignore this warning, as Quartus is simply informing you that it did not use those specific interface properties during synthesis. 

    We will investigate further.

    Regards,
    Liang Yu

  • FabianL's avatar
    FabianL
    Icon for Occasional Contributor rankOccasional Contributor
    4 months ago

    Hi, thanks for the explanation.

     

    Would it be possible to waive these warnings or disable these warnings on a project setting basis?

    Coding Guidelines encourage us to not have any Warnings in QSYS project, so I would prefer having a way to disable these warnings explicitly.

     

    best regards

    Fabian

  • LiangYuG_Altera's avatar
    LiangYuG_Altera
    Icon for Contributor rankContributor
    3 months ago

    Hi FabianL​ 

    FabianL wrote:

    Would it be possible to waive these warnings or disable these warnings on a project setting basis?

    Sorry for the late reply.
    We were looking for ways to waive/suppress this warnings in Quartus Std, but unfortunately none is found.

    Regards,
    Liang Yu

  • FabianL's avatar
    FabianL
    Icon for Occasional Contributor rankOccasional Contributor
    3 months ago

    ok, then we have to live with these warnings.

    Would be great if this could be fixed in the future. With excessive acceptable warnings in the system the important warnings tend to be overlooked.

     

    For now your explanation allows us to deal with it. Thanks.