Talking to the DM16L, and receiving a dump
I built swiss_micros_tools because I was tired of keeping a serial terminal open just to poke a SwissMicros
calculator. 1.8.12 is the release where that stops being a plan for the receive path. The clock was already done. The
dump now is too.
This note is the bench for that release. The short announcement is the door. Here I write down how I actually open the
port, why macOS needed its own body, and which lines dm_receive keeps.