Due to a problem in the Intel® Quartus® Prime Pro Edition software version 18.1 Update 2 and earlier, you may see this error when using EMIF Debug Toolkit.
Device Family: Intel® Stratix® 10
Intel Software: Quartus Prime Pro
Area: Tools
Last Modified: August 24, 2020
Version Found: v18.1
Version Fixed: v20.1
Bug ID: 1507647082
Internal Error: Sub-system: EMITT, File: /quartus/sld/emitt/emitt_hardware_driver_impl.cpp, Line: 1019
Description
Workaround/Fix
This error is caused by the lack of a refence clock, please make sure the refence clock frequency is correct and present before the EMIF Debug toolkit is running.
This problem is fixed in the Intel® Quartus® Prime Pro Edition software version 20.1.