You may see the RREF pins incorrectly shown as GND in Quartus® .pin files of Intel® Arria® 10 GX660 and AX660 devices when using Intel Quartus® Prime software version 16.1. This is a known problem and will be fixed in a future version of the Quartus Prime software.
Article ID: 000077415 Content Type: Troubleshooting Last Reviewed: 02/21/2017
Why are the RREF pins shown as GND in Arria 10 device .pin files?
Intel® Quartus® Prime Pro Edition
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