"Hello World!" keeps looping. Anyone know why?

Mulligan22,

I think to start troubleshooting, you might want to remove the DDR3 and make sure nios is working properly. I usually would check the reset vector and the memory vector and make sure they are indeed pointing to the on chip memory. I usually have the data master and instruction master connected to the on chip memory that i want the nios to use. If nios starts properly and you dont see the looping, you can rule out that its a nios problem. After that you can add the DDR3 ip core and see if you get the same issue. Ive seen something similar before with this but i dont recall the solution, i think their was a setting in the BSP editor that wasnt pointing to the correct memory. Let me know how that goes.

-Trukng