You can. But it's going to be hard. It would help you a lot if you get physics credit. That means a 5 on both physics AP tests (shouldn't be a problem for a physics major, right?

). That way, you can take the higher-level physics classes in place of the regular engineering physics.
I'm not sure if you know this, but one of the branches of ECE is heavily physics based. I forget which one, but you should look into that too, for your upper-level ECE classes.