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XEPLD Optimize: Unexpected error: epldinst.cc:40
When attempting to Implement a CPLD design in the
Design Manager/Flow Engine, the following error occurs:
Unexpected error detected.
Please report to Xilinx with reference:
This may be caused by an illegal connection in the design.
For example, the following configuration has been seen to cause
This would be illegal since an OBUF cannot drive internal logic.
Check the schematic for illegal connections.