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Do I need to use the afi clock when I use the SDRAM memory controller?
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Rafael C.
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I'm not 100% sure about this one, but as the AFI (Altera PHY Interface) is provided to make it easier to interface with external memory, I would say that yes, you do need to use it. I'm assuming that by bundling it all up Altera relieves you of having to define all the tricky timing settings.
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How do I use the afi clock on the Input of a PLL block to all clocks be synchronous ?
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Rafael C.
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I have found PLLs and clock control modules to be a real headache, as often you are only allowed to connect certain inputs with certain outputs. By the looks of it afi_half_clk is inverted - is it possible to export the non-inverted one?
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Can I use Avalon Memory clock corssing bridge with no synchronized clocks ?
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Rafael C.
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The clocks of clock crossing bridges do not need to be synchronised.
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