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Hi,
I also have two questions.
Why do you need the Qsys flow? Qsys consumes more resources and makes less fmax than sopc builder. I think there is no merit for pure Nios systems.
Why do you need new kernels? Do you need new features which are not included in the old versions?
Kazu
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I have access to a Quartus ver 15 license and Qsys is the flow. I'm guessing I may be able to go backwards if you are really saying the tool has gotten worse?
I have a little experience with building a ver 3.10 kernel. It looks like a few things were done differently (at least for the Nios II builds) in 2.26. I have no requirement only a desire not to be on the bleeding edge and also not to be far out of date.
-Stan