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lambert_yu's avatar
lambert_yu
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11 months ago

dynamic configuration issue of fpll from arria 10

Hi, all quartus ip : quartus 191 IP : fpll operation mode : fraction mode For change the frequency of fpll: I modify c0/m/n/k, after configure these register , then use register to r...
lambert_yu's avatar
lambert_yu
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11 months ago

I made sure I have written all register correctly through reading the related register after write. And I found that 1st k value, 2ed k value has same frequency; 3rd value, 4th value has another same frequency; 1st and 2ed k value is diff; 3rd value and 4th value is diff. Update frequency is 861us.