Mazda cranks no start and no crank no start

7 2008. My car would have issue ever now and then we’re it would shut off but then I could crank it back on but One day I was driving down the high way and when pressed on the gas peddle and it felt like the car battery just died, my rpms dropped to 0 and I pulled to the side of the road, I tried crank but it wouldn’t start, I tapped the starter with a wrench to see if it was that and it would crank but not start then after a few attempt it would stop cranking. I ran check engine codes and I got U0100 and P0340. Can anyone help me. I don’t know if it’s my crank shaft, cam shaft or starter