Xmc 4500 can bus

[#1]

Hello all,
Issue: I want to be able to forward every message from one CAN BUS to another. I do not know the identifier of the messages coming in so I cannot simply add a bunch of identifiers to a CAN node.

Progress: So far I have two CAN nodes(CAN_0 , CAN_1) and both CAN nodes can receive data as well as transmit. However when I transmit data the identifier changes to the identifiers in CAN_0 and CAN_1.
My program operates like the following:

• CAN node setup
  
• Dave setup
  
• Event handler for interrupt flags
  
• interrupts occur if there is a message on CAN_0 or on CAN_1
  
• After interrupt occurs, the approriate event is flagged; Read CAN_0 or CAN_1 message
  
• Send CAN_0 message on CAN_1 or send CAN_1 on CAN_0
  

Any help is appreciated, Thank you

[DRubeša]

HI ccox04,

I would suggest to use "Gateway" functionality of the CAN controller. Unfortunately, it won´t work right of the bat while you need to handle setting the ID and data values from the unknown source, but I believe it should be feasible. What is gateway and how you can use it you can see in "MULTICAN_CONFIG_EXAMPLE_XMC47" and of course in the accompanying chapter describing gateway functionality in Reference Manual.

Best regards,
Deni

[#3]

Thank you, I was able to make it work. Thanks!

[DRubeša]

Cool,

always nice to hear that 🙂

Best regards,
Deni