Question Canbus with Spider v2.3 and BTT pi1.2

[Jusmu]

Hello, i have Spider v2.3 which has CAN-connector and BTT PI v1.2, which also comes with a CAN connector. Should i connect my CAN toolhead to the control board or to the Pi computer's CAN connector?

 

[Jusmu]

Ok, CAN connection is working. The starting end is connected as shown in the picture. One end directly to the BTT Pi board. Yellow cable to the left and green to the right. Configuring the CAN bus took more time and understanding than I would have liked... but now it works.