ATSAMC21 and ISO1042Q1 CAN BUS

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Hey Guys,

 

I have a Custom Board with a ATSAMC21E18A MCU and a ISO1042Q1 CAN Isolation Transceiver on it.

The TX Message looks exactly what I would expect but the ISO1042 seems to not like multiple dominant consecutive Bits.

I have set the Baudrate to 10kBaud. Both Grounds of the Board are connected with each other. I have put a 10k Ohm Pullup on the TX line of the ISO1042 as described in the datasheet, as well as 100nF decoupling Capacitors on both VCC Inputs.

At the moment there is no other Device on the CAN line.

 

I really hope you can help me.

 

Thanks in advance.

 

Marcel

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