-crash readout: master i2c should go into known state
+more keystroke commands
-message_buffer_end symbol address is wrong
+speed changes immediate
-check output file davenant:trains-bessar/detpic/cro2
- this does correspond to current code and shows a bug in point init'n
+labels for keys
-then when point init'n ok, move panic morse_TI2 in slave.asm along
- and debug next bit
+race between cdu off (due to watchdog or short) and points
layout polarity diagram colourful segment encoding: