ID:18305 DSP block WYSIWYG primitive "<atom name>" cannot perform a subtraction operation with unsigned operands. Make sure ports SUB and NEGATE are disconnected or grounded, or make sure all operands are set to using signed representation.

CAUSE: The specified DSP block WYSIWYG primitive cannot perform a subtraction operation with unsigned operands. One or all of the input operands of the specified DSP block are set to using unsigned representation.

ACTION: Make sure ports SUB and NEGATE are disconnected or grounded, or make sure all operands are set to using signed representation.