I’ve got HERE2 GPS - came with CAN mode enabled and CAN cable fitted by default.
Switched to Serial mode and fitted serial + i2c cable for Cube black GPS1 port.
GPS was working on GPS1 port - but failing configuration checks - seems to be known bug with older HERE2 firmware - as discussed here: HERE2 GPS failing configuration checks. HERE2 LEDs were also not working in serial/i2c mode (just Power led).
Ok - tried to switch to CAN mode (Cube black, arduplane 3.9.11) - in order to check if it works with CAN and to update GPS firmware. Got LEDs working in CAN mode. But cant get GPS detected in CAN mode. Also not able to list any parameters when in SLCAN mode (in order to set node ID for example). After clicking “SLCAN mode on CAN1” button - nothing appears in the list. When using CTRL+L combination on Mission PLanner (v 1.3.68) "SLCAN mode … " buttons are greyed out alltogether - yet they are active if going via Initial Setup -> Optional Hardware -> UAVCAN
How to debug this further? Is there any special driver needed for SLCAN mode - that did not came with Mission Planner?