How to unpack full J1939 messages in Simulink, like CAN Unpack?

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Alex 2025-1-7

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https://ww2.mathworks.cn/matlabcentral/answers/2172741-how-to-unpack-full-j1939-messages-in-simulink-like-can-unpack

评论： Walter Roberson 2025-1-7

I am building an application that will use handwritten C++ code combined with autogenerated code from Simulink. I'm hoping to be able to do all the necessary CAN packing/unpacking within Simulink, but some of my hardware devices use J1939. Is there a way, similar to the CAN pack/unpack blocks, to pack/unpack full J1939 messages? Basically, I'd like the J1939 Receive/Transmit blocks to be able to take an input from external code where I will perform the actual J1939 receive.

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Alex 2025-1-7

Unfortunately the block is not compatible with the hardware I am deploying code to. From that page:

"The J1939 communication blocks also support code generation that have limited deployment capabilities"

Walter Roberson 2025-1-7

In that case, it seems unlikely that you will find ready-made Simulink blocks. There does not appear to be anything relevant in the File Exchange.

Maybe https://www.embitel.com/automotive-casestudies/j1939-protocol-integration-with-simulink-subsystems or https://jcatechnologies.com/model-based-development-and-jcas-simulink-block-set/

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