ID:16600 You connected the "accumulate" port for the DSP block WYSIWYG primitive "<name>" which requires the output register to be enabled. Select a clock source for the output register.

CAUSE: The specified DSP block WYSIWYG primitive is using the accumulate feature without an output register.

ACTION: Select a clock source for the output register based on your design requirements, or disable the accumulate feature by disconnecting or tying the \"accumulate\" port to GND.