Hello to all RC users,Originally posted in cdnusers.org by Stalker
I have some hierarchical ports of subdesigns, which are currently unused.
The are not driven inside the subdesign and not connected at the higher level.
RC decided to drive them with 1'b0 - assign output_pin 1'b0
There is an attribute, that is responsible for such behaviour:
rc:/> get_attr hdl_undriven_signal_value /
The options are 1, 0, Z, none.
It seems that RC ignores this attribute.
Any suggestion, how to eliminate driving of the unconnected bit would be appresiated.