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for information, i get a better stability now by changing some settings, now I use a nios II/f with a 125MHz
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I have not enough experience to suggest you which core is better in your case. Surely /f is better for complex code since relies on features like cache and branch prediction.
On the other hand, it uses much more LEs so I suppose it possibly needs to run at a slight lower frequency than /e.
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do you think it will be enough for the application i told you above
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As I told before, it could be enough, but your application must be devoted only and totally to poll the timer in order to get the exact switching time.
That means your Nios can't do any other task. IMHO it's a very inefficient way to use a processor!
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does someone know where i can get the following information : what is the maximum frequency for a nios II/f with the cyclone III ep3c120f780c7n
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I also tried to find a specification about nios fmax but never found a clear one. From what I understood it depends from your project timings.
I pushed without problems a Nios II/f to 100MHz; I think you can go beyond if you are smart and if you know how to work with Quartus timing constraints.
Cris
Honored Contributor
