Why can't I use the x1 line to clock Arria® V device transceiver channels higher than 6.5536 Gbps within a transceiver bank but across a triplet boundary when using Quartus® II software version 15.0.1 and earlier?

Description

Due to a bug in Quartus® II software version 15.0 Update 1 and earlier, the Fitter will prevent you from clocking Arria® V device transceiver channels higher than 6.5536 Gbps within a transceiver bank but across a triplet boundary.

Resolution

To work around this problem, install the Quartus® II software version 15.0 Update 1 and then download and install patch 1.07 from the links below.

• Download the Quartus II software version 15.0 Update 1 patch 1.07 for Windows (.exe)
• Download the Quartus II software version 15.0 Update 1 patch 1.07 for Linux (.run)
• Download the Readme file for the Quartus II software version 15.0 Update 1 patch 1.07 (.txt)

This problem has already been fixed in Quartus® standard software version 16.1.