Hello everyone. I am new in this forum and in using Arduino with CAN-BUS Shield.
In my project I want to analyse the from the Shield sended CAN messages with the CANcaseXL from Vector.
I have got the message: “CAN BUS Shield init okay!” . But I don’t receive anything on the CANcaseXL side.
I have connect it to the CAN-Shield in four ways:
- With Sub-D9 without an external resistor between CAN_H and CAN_L
- With Sub-D9 with an external resistor CAN_H and CAN_L
- With “CAN_H-CAN_L” Port without external resistor CAN_H and CAN_L
- With “CAN_H-CAN_L” Port with external resistor CAN_H and CAN_L
So I don’t know exactly if there is an internal resistor between CAN_H and CAN_L in the CAN-Shield
On the side of the CANcaseXL I tried it with and without resistor, too.
It seems like that the CAN-Shield can’t send messages, because for the first messages I have got a “SENDMSGTIMEOUT” and later I have got a “GETTXBFTIMEOUT” while sending.
I hope someone can help me. Thanks in advance.