So what's wrong with 160? it is chip address, A0, and isn't that fixed?

Regarding the logic analyzer. I have that saelae thing.
I can't get it work as I understand it should work - run continuously, monitor bytes, like scope does. it only has "run", it runs, fills up buffer in couple of seconds and stops - that's all. For that purposes, I bought a scope with built-in logic analyzer, which can run infinitely - Hantek DSO2D10 - but was able it to work only very low speeds, for protocol decoding.