AnsweredAssumed Answered

TJA1043 Bus Off is not detecting (CANH or CANL is open)

Question asked by shanmugamsundar on Jan 22, 2018
Latest reply on Jan 24, 2018 by shanmugamsundar

Hello All,

I need a clarification related to Bus Off detection, dependency with CAN transceiver.

Transceiver : TJA1043

Controller: Renesas RH850


During my testing on the Bus Off detection, I have observed that in the

following scenarios, Bus Off detection is not happening.

- CAN_H is connected and CAN_L is opened

- CAN_H is opened (not connected) and CAN_L is connected.

I would like to understand is there any limitation with the TJA1043 in

detecting the above scenario ?