Internal Error: Sub-system: EMIF, File: /quartus/periph/emif/emif_gen6_netlist_modifier.cpp, Line: 1213 - Internal Error: Sub-system: EMIF, File: /quartus/periph/emif/emif_gen6_netlist_modifier.cpp, Line: 1213 Description When there are multiple external memory interfaces placed in the same I/O column and the Arria® 10 EMIF IP Diagnostics tab Calibration Debug Options parameters are not configured correctly, an Intel® Quartus® Prime software internal error message of this type may occur: Internal Error: Sub-system: EMIF, File: /quartus/periph/emif/emif_gen6_netlist_modifier.cpp, Line: 1213 Expected only one, but found 4 atoms with SOFT_NIOS_ADDR port connected! Resolution Configure the Diagnostics tab Calibration Debug Options for the EMIF Debug toolkit, daisy chaining, and Interface ID parameters correctly for each interface. Refer to the Intel® Arria® 10 Debugging Multiple EMIFs wiki page for details which shows an example project containing 3 interfaces with daisy-chained EMIF Toolkit connections. This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime Software. Custom Fields values: ['novalue'] Troubleshooting FB: 397202; False ['External Memory Interfaces Arria® 10 FPGA IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 17.1 15.0 ['Arria® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']