I have declared a 31 bit constant using the constant IP block:
When I do a timing simulation the constant bits show up as Z's going into the In0 input of the concatenation block:
The Synthesis schematic shows the correct implementation of the constant IP block:
Can somebody explain to me why the constant values are being displayed as Z's on the timing simulation and what should I do to correct this issue?
Thanks for all your help.
Looks like a bug. To dig deeper, right click on the schematic and go to source.