[DRC INBB-3] Black Box Instances: Cell 'U1' of type 'clkdiv' has undefined contents and is considered a black box. The contents of this cell must be defined for opt_design to complete successfully.

[Carlos Garcia]

 

I have this error [DRC INBB-3] Black Box Instances: Cell 'U1' of type 'clkdiv' has undefined contents and is considered a black box.  The contents of this cell must be defined for opt_design to complete successfully. If anyone could help me to fix it please

 

 

[JColvin]

Hi @Carlos Garcia,

I would recommend taking a look at this Xilinx forum thread. I don't know which particular Basys 3 project you working with, but this error is commonly associated with mismatched names as mentioned in the thread.

Thanks,
JColvin