How can I establish CAN communication using Simulink and TI F28379D processor?

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Khashayar Olia 2017-2-27

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https://ww2.mathworks.cn/matlabcentral/answers/327190-how-can-i-establish-can-communication-using-simulink-and-ti-f28379d-processor

评论： Walter Roberson 2017-12-27

Hi, I'm using Simulink to program TI F28379D processors to establish CAN communication. Right now I'm able to transmit messages over CAN and monitor it with oscilloscope but I can't read it with Vector CANalyzer or other CAN transceivers. The problem is the CAN high and low signals are identical while they are supposed to be differential. Check this out:

I don't see any wrong configuration in my settings, but here is a screen shot just in case:

Does anybody know why I'm not getting differential signals?

Thanks, Kash

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Khashayar Olia 2017-12-27

Yes, I was. The problem is the TI F28379D Launchpad doesn't have the CAN transceiver so I was monitoring the CAN messages at the MCU side from which CAN+ and CAN- is supposed to be identical. You need to buy a CAN transceiver evaluation module such as SN65HVD257EVM and connect CAN+ and CAN- to it then it provides CAN_H and CAN_L differential signals for you.

Regards, --Kash