Endstops not working on Sanguish

I have a Sanguish board, two actually, and on one the opto-endstops work fine. They didn't start off that way but for whatever reason they started working. Anyway, this other board none of the endstops work, it has 2 optos and one mechanical and none of them are working. I had z working for a bit then it stopped. I've double checked all the soldering and connections. Both boards were burned with the same firmware but I've been fiddling with this one so much that I may have deviated a bit.

What settings should I have in my firmware to make these work?