Internal Error: Sub-system: EMITT, File: /quartus/sld/emitt/emitt_hardware_reader_nf_emif_131_impl.cpp, Line: 1905 - Internal Error: Sub-system: EMITT, File: /quartus/sld/emitt/emitt_hardware_reader_nf_emif_131_impl.cpp, Line: 1905 Description When targeting the Arria® 10 DDR4 IP and running the EMIF Toolkit in the Quartus® Prime Pro Software versions 19.2 or earlier, you may see the errors below. Internal Error: Sub-system: EMITT, File: /quartus/sld/emitt/emitt_hardware_reader_nf_emif_131_impl.cpp, Line: 1905 interface_id < EMITT_NF_EMIF_131_MAX_NUM_MEM_INTERFACES Stack Trace: 0xe3bae: EMITT_HARDWARE_READER_NF_EMIF_131::load_param_tables 0x71e (sld_emitt) 0xe1d24: EMITT_HARDWARE_READER_NF_EMIF_131::establish_connection 0x254 (sld_emitt) 0x5eb5e: emitt_establish_connection 0x31e (sld_emitt) ... End-trace Resolution To work around this problem, set the Interface ID parameter (in the Calibration Debug Options under the Diagnostics tab of the DDR4 IP) to a value equal to 10 or less. This problem is scheduled to be fixed in a future release of the Quartus® Prime Pro Software. Custom Fields values: ['novalue'] Troubleshooting 1409056583 False ['External Memory Interfaces Arria® 10 FPGA IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 19.1 ['Arria® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']