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Altera_Forum's avatar
Altera_Forum
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14 years ago

How to calculate parameters for reconfigure a pll

Hello, i'm implementing a reconfigurable PLL using an ALTPLL e ALTPLLRECONFIG megafunction. I initialize my PLL with an input freq of 50MHz and only c0 output clock with output freq of 100MHz...
Elias97's avatar
Elias97
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2 years ago

hello good afternoon, I am facing the same problem, I apply the formula that you showed objF = ((End*(M+Mdec)/(N*C))-Fout)^2. but it does not work for me, I carry out the series of steps indicated by the calculator in the plls manual but it does not give me the one I want for the intel pll, how can I know what to calculate to do with the M, N and C counters in the manual, to obtain the output what do I want. Thanks in advance for contributing.