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Honored Contributor
Honored ContributorCyclone V PLL Dynamic Phase Shift
Hello, did anybody successfully use basic PLL dynamic phase shift with Cyclone V? I tried to port an existing Cyclone III application, expecting that the dynamic phase shift interface would wor...
Altera_ForumHonored Contributor
Honored ContributorI found the problem. I had instantiated altera_pll directly in VHDL code as previously altpll for Cyclone III.
But without setting a pll_subtype parameter to "DPS" and some other accompanying parameters, the dynamic phase shift ports are left unconnected without a warning. Unfortunately there's no altera_pll user manual with port and parameter documentation, only AN661 giving usage examples. Altera is apparently assuming that the new PLL IP is only implemented through Megawizard.
