Turns out the data-stream *is* 3.3V (despite being powered by 5V), and with a couple easy re-connects of some of the original and thankfully unmodified hardware there *is* data!

Onward!

Now, the next hurdle is that there's currently no *trigger* input on my logic-analyzer... just a "start sampling" button, which isn't responded-to immediately. So getting the timing right is a crap-shoot.

And the next hurdle after that may be a software bug; it seems to be sampling *twice* (each time?)... so even if the timing's right it'll show the sampled data then wipe it out.

This never appeared before, because everything was lab-testing; my data-sources repeated themselves. This one does not.

Good, anyhow. There *is* data, and I don't even have to do level-shifters. They should be done at some point, but would be better-done with buffers rather than XORs (heh, six buffers per typical 7400-series chip, nice), but software definitely needs improvement, and it feels more productive to work on, for some reason... maybe because I knew these issues were going to have to be attacked soon.