I am having trouble using the oscilloscope.
   I am no longer seeing big spikes. I am also seeing far more square
   waves. It is still not detecting the chip. I haven't figured out how to
   get it to the same region of the signal yet.
   The signal idles high. When I set a falling edge trigger, it triggers
   late, after the signal has already been low for some time, then risen
   and fallen again.