Cyclone V transceiver LVDS reception problem

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Hello,

I'd like to link a LVDS signal on the RX channel. During the instanciation I put DATA_P ( it's a std_logic_vector (0 downto 0)) in the serial data of the transceiver but Quartus II automatically create a DATA_P(n) whereas i created a DATA_N sig declared as a LVDS on the pin planner. (I declared DATA_P as a LVDS)

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As far as I know, if a pin is LVDS, then Quartus expects to see a signal named as the pin planner shows. Personally, I just declare the positive pin of the signal and let quartus fit the negative pin. You can also name a signal SIGNAL and SIGNAL_n and Quartus should automatically pick it up correctly. For you, this would be DATA and DATA_N.

Check out http://www.alteraforum.com/forum/showthread.php?t=2707. If you don't need the special buffers, you can always do each pin separately and not declare the LVDS assignment, but this is for the transceivers, which is usually a special case.