Knowledge Base Article
Warning: <fPLL instance name>.xcvr_fpll_a10_0: The value of parameter cmu_fpll_pll_n_counter_coarse_dly cannot be automatically resolved. Valid value ranges are: {0 ps} {200 ps} {400 ps} {600 ps} {800 ps} {1.0 ns}.
Description
Due to a problem in the Quartus® II software version 14.0 Arria® 10 Edition and later, you may observe the following warnings in the IP Parameter Editor when instantiating the Arria 10 fPLL:
Warning: <fPLL instance name>.xcvr_fpll_a10_0: The value of parameter cmu_fpll_pll_n_counter_coarse_dly cannot be automatically resolved. Valid value ranges are: {0 ps} {200 ps} {400 ps} {600 ps} {800 ps} {1.0 ns}.
Warning: <fPLL instance name>.xcvr_fpll_a10_0: The value of parameter cmu_fpll_pll_n_counter_fine_dly cannot be automatically resolved. Valid value ranges are: {0 ps} {50 ps} {100 ps} {150 ps}.
Warning: <fPLL instance name>.xcvr_fpll_a10_0: The value of parameter cmu_fpll_pll_ref_buf_dly cannot be automatically resolved. Valid value ranges are: {0 ps} {1.0 ns} {2.0 ns} {3.0 ns} {4.0 ns} {5.0 ns}.