Why does the Agilex™ 7 R-Tile Compute Express Link* (CXL*) 1.1/2.0 FPGA IP fail at “Fitter” when implementing multiple instances?

Description

Due to a problem in the Quartus® Prime Pro Edition Software version 23.1 and earlier, you might observe a fitter error when two Agilex™ 7 R-Tile Compute Express Link* (CXL*) 1.1/2.0 FPGA IPs are instantiated in one project.

Error(14566): The Fitter cannot place 1 periphery component(s) due to conflicts with existing constraints (1 IOPLL(s)). 

Resolution

This problem is fixed beginning with the Quartus® Prime Pro Edition Software version 23.2.