ring counter using d flipflop

[ece04]

I am trying t make ring counter in cadence virtuoso using d flipflop.I need to know wht should we do with unconnected pins like clr pin of first flip flop and set pins of rest flipflop.

https://obrazki.elektroda.pl/6539339700_1363354309.png

 

[alec_t]

Just google 'ring counter'. You'll get hits for various schematics which show how the set and/or clear pins can be used.

 

[kubeek]

Buy a new keyboard, you are somehow losing letters..