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Using dynamically configurable PLLs is a very powerful way to explore various configurations. So, it is well worth investing the time to get to grips with it. It becomes a very useful tool to fine tune interfaces, especially with external peripherals. If you can stomach instantiating a Nios to control it you will realise an enormous amount of flexibility.
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Alex,
How do you analyse the results with timing analyser, or do you just accept the analysis will fail but that you can fix it by varying some PLL properties?
How do you know that things are 'working' properly?
I've never used dynamic configuration of anything that would affect the timing analysis but am interested in what's involved.
Nial
Honored Contributor
