Honored Contributor
Honored ContributorI wonder what "initialized the signals" means? A 'Z' signal can be sourced only from a tri-state driver. Initializing a tristate node is meaningless in my opinion. Registered signals can be initialized, e.g. a register feeding the output enable of a tristate driver, but tristate nodes can't be initialized other than to 'Z', which may be necessary in simulation in some cases. Unitialized signals would show as 'U', driver conflicts as 'X'.
If you expect other than 'Z' from a tristate node, you have to determine which driver is expected to drive the node and why it doesn't.
