ID:16476 In altera_syncram megafunction, clocken1 port can only be used when clock1 port is used

CAUSE: You connected the clocken1 port of the altera_syncram megafunction; however, the clocken1 port can only be used when the clock1 port is connected. This error usually occurs when you instantiate a megafunction directly in a text file rather than using the IP Parameter Editor.

ACTION: Modify the design and connect clock1 port of the altera_syncram megafunction, or disconnect the clocken1 port. To avoid receiving this message in the future, Intel recommends using the IP Parameter Editor.