S32K144 FlexCAN Issues

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S32K144 FlexCAN Issues

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xiaoyuwang
Contributor II

In my S32K144 project, my ECU send only 3 messages(ID: 0x190, 0x191, 0x390) and receive 24 messages(all of these message ID smaller than 0x390). But I met 2 issues:

1.  When only my ECU is present on bus, I will get "Error Passive" state(due to no Acknowledgement error). But when I start another ECU on same bus, my ECU cannot restore automatically.

2. Sometimes, my 0x390 message cannot be sent. But sometimes, it is OK.

For these 2 issues, what's the root cause? how to solve them?

Thank you ~~

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