The Black Box Configuration Wizard opens automatically when a new black box block is added to a model.
For the Configuration Wizard to find your module, the model must be saved in the same directory as the module you are trying to import.
After searching the model's directory for .vhd and .v files, the Configuration Wizard opens a new window that lists the possible files that can be imported. An example screenshot is shown below:
You can select the file you would like to import by selecting the file, and then pressing the Open button. At this point, the configuration wizard generates a configuration M-function, and associates it with the black box block.