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AR# 64783

MIG UltraScale QDRII+ - XSDB Debugger indicates MicroBlaze has failed but calibration completes


Version Found: MIG UltraScale v7.0
Version Resolved: See (Xilinx Answer 58435)

The MIG XSDB Debugger can report "MB FAIL" indicating that MicroBlaze has failed during calibration, but init_calib_complete still asserts and no data errors are detected.

Is this safe to ignore and how can I fix it?


This is an issue with the status reporting of the XSDB Debugger, and should have no negative effects in hardware. 

If you need to run report_property [lindex [get_hw_migs] 0] or use the hw_manager GUI to see the calibration results and debug information, then issue a soft reset and the XSDB Debug GUI should be corrected.

If you are using the example design to check for data errors when running various traffic patterns with VT variation testing, then both init_calib_complete and data_compare_error should be used.

Revision History:
06/30/2015 - Initial Release

Linked Answer Records

Master Answer Records

AR# 64783
Date Created 06/11/2015
Last Updated 06/26/2015
Status Active
Type Known Issues
  • Kintex UltraScale
  • Virtex UltraScale
  • MIG UltraScale