Error(175020): The Fitter cannot place logic pin that is part of pcie_example_design pcie_example_design in region (95, 2) to (95, 2), to which it is constrained, because there are no valid locations in the region for logic of this type

Description

When you compile the Intel® Stratix® 10 Hard IP for PCI* Express MX H-Tile ES1 FPGA Devkit Design Example with any feature enabled in the Configuration, Debug, and Extension Options tab via the Intel® Stratix® 10 PCIe* IP Parameter Editor, you may see  the following Fitter error messages:

Error(175020): The Fitter cannot place logic pin that is part of pcie_example_design pcie_example_design in region (95, 2) to (95, 2), to which it is constrained, because there are no valid locations in the region for logic of this type.

Error(16234): No legal location could be found out of 1 considered location(s).

Error(175005): Could not find a location with: IO_FUNCTION of GPIO (1 location affected) .

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

Error(15307): Cannot apply project assignments to the design due to illegal or conflicting assignments.

The Fitter error messages are due to the invalid reconfiguration clock pin location assignments in the Intel® Stratix® 10 Hard IP for PCI Express MX H-Tile ES1 FPGA Devkit Design Example.

Resolution

To work around this problem, change the reconfiguration clock pin locations as shown below:

When switching pin location assignments in Intel® Quartus® Prime Pin Planner, reassign reconfig_clk_in_clk pins from PIN_AR26 / PIN_AP26(n) to PIN_AT13 / PIN_AU13(n). 

When switching pin location assignments in the QSF file, make the following assignment changes:

From pin location assignments:

set_location_assignment PIN_AR26 -to reconfig_clk_in_clk

set_location_assignment PIN_AP26 -to "reconfig_clk_in_clk(n)"

To pin location assignments:

set_location_assignment PIN_AT13 -to reconfig_clk_in_clk

set_location_assignment PIN_AU13 -to "reconfig_clk_in_clk(n)"

This problem is fixed in the Intel® Quartus® Prime Pro Edition Software version 19.1.