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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 ?

 

 

Thanks,

Shan

 

tja1043

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