ID:21588 To properly enable the cascade feature, port CASCADE_DATA_IN for DSP block WYSIWYG primitive "<atom name>" must be connected from the CASCASDE_DATA_OUT port of the previous DSP block.

CAUSE: The CASCADE_DATA_IN port of the specified DSP block WYSIWYG primitive is not connected to the CASCADE_DATA_OUT port of another DSP block.

ACTION: Connect the CASCADE_DATA_OUT port of the previous DSP block to the CASCADE_DATA_IN port of the specified DSP block.