What firmware was pre-loaded on the XMEGA target chip when the ChipWhisperer Lite is shipped?
I ask because I flashed the AES firmware back on to the XMEGA target after having loaded my DES firmware. I found that the traces from the AES code provided don’t seem to be similar to the AES traces I captured from the XMEGA target before I started playing with firmware. In fact, the CWAnalyzer has a much more difficult time using DPA to discover the AES key with the provided firmware than with the pre-loaded firmware. So much so that I needed 400 captures instead of 50-100, and needed 4000 samples per traces instead of 2000.
So what was on the XMEGA target when it shipped?