@BenTuras were you able to get the CAN to work now?
you have to state the number of miners in cgminer correctly.
It must be maximum number of boards in cluster x2.
And i would also suggest setting the fan control target temperature to 45°C.
This is for a stack of 8:
--avalon-options 115200:16:10:50:256 --avalon-temp 45
Yes, I got the can-bus working with the termination installed on both ends of the bus.
I am running cgminer 3.3.2 without any options.
All board are blinking red/green/orange and are hashing like never before ;-)
Temp is 47/48 degrees C on cgminer.
8 boards produce around 42GH/s.
:-)