M93X2 Arduino on USB
When the M93X2 Arduino is connected via USB to the host PC, it receives +5V power over USB.
1. Open the Power Jumper J16!
Else USB +5V would be connected to PDP-11 +5V rail ... your USB port would lose the fight.
2. When the Arduino is powered via an USB cable, it will hang after the PDP-11 system is powered.
It need a manual press onto the "Reset" Button then.
Arduino Every is running if its yellow LED is visible.
uTracer BOOT Download und UniBone scripts:
If uTracer11 is set to download a Bootloder or other code on Reset, UniBone scripts must be modified to NOT download their Bootloader too.
Else two code pieces would be garbled into each other at the same time., these two tools act both as bus-master at the same time.
Remove the "memory load" commands "m ll" from UniBone scripts then.
Perhaps add a boot delay until uTracer11 has completed code download (which make take a time).
"Pwr" in UniBone scripts starts the upload sequence in uTracer11.