Qianling Mausoleum to famen temple or famen to qianling

I planned going to qianling from xian with first train and go to famen temple from there.
1. Is that possible qianling mausoleum in the morning and after lunch go to famen temple?if yes, can you help me with the transportation? Is there any bus between there?
2. Or is better i go to famen temple first than go to qianling?

Thanks