Forum Discussion
Norick
New Contributor
7 years agoPLL is not fully compensated
Hello in Quartus I get following warning message (same message for PLL_FRT and PLL_ADC_intern): Warning: PLL "PLL_FRT:PLL_FRT_inst|PLL_FRT_altpll_0:altpll_0|PLL_FRT_altpll_0_altpll_nr22:sd1|pll7" i...
Norick
New Contributor
7 years agoHello JwChin
now, I think I understand the problem here. First of all the diagram you showed is the Post Fitting Map Viewer. This is quite importand because the other viewers does not show this contolblock at all!
Second, the showed controlblock is not part of my design and therefore I focused on the assignment editor. Here I have seen that the FPGA_CLK1 has been set as "global signal" and was enabled. Therefore
Quartus put in such controlblock before the PLL!
After disabling it the warning messages is gone and everything fine :)
Thank you!
JonWay_altera
Frequent Contributor
7 years agoYou are welcome. I am glad it helped! 😊