While compiling in Intel® Quartus® Prime software, you may see this error in the synthesis stage if an IOPLL instance in an Intel Arria® 10 or Stratix® 10 design is not connected to a valid reset signal.
Device Family: Intel® Arria® 10, Intel® Stratix® 10
Intel Software: Quartus Prime Pro, Quartus Prime Standard
Type: Answers
Area: Component
Last Modified: December 08, 2017
Version Found: v16.1
Bug ID: FB: 465100;
IP: Altera IOPLL
Error: RST_N port on the PLL is not properly connected on instance
Description
Workaround/Fix
The reset port of the IOPLL needs to be driven either by an external input pin or internally generated logic so that the IOPLL can be reset if it loses lock.