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Honored Contributor
Honored ContributorPhase Relationship after PLL reconfiguration in CycloneIV
Hi, I am using EP4CE55 FPGA in my project. i have problem with PLL usage. I have enabled reconfiguration and dynamic phase shift of PLL. i want to know after i reconfigure PLL to output a d...
Altera_ForumHonored Contributor
Honored Contributoriirc the phase relationship once you change the pll settings can differ from what you set in the megafunction but after holding the pll in reset it should be back to your phase settings. note only hold the pll in reset not the pll reconfig.
if you havent already, look at https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/an/an661.pdf
