S32K344 flexCAN Stops Transmission When CAN Bus Loading Is High

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S32K344 flexCAN Stops Transmission When CAN Bus Loading Is High

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kodyw
Contributor II

Hello,

We had made a S32K344 board and are developing the application using MATLAB Simulink with S32K3 MBDT tool V1.5. We encountered an issue that when the CAN bus loading is high, that CAN controller will randomly stop transmitting CAN messages.  Receiving CAN messages are working okay when transmitting is not working.

I searched the 'SW32K3_RTD_4.4_R21-11_3.0.0_D2303_ReleaseNotes.pdf' and found there is an issue ID: ARTD-55399 which is similar to the issue that we encountered.  However, that issue is found in S32K3 RTD 2.0.0 and MBTD Tool V1.5 is using S32D3 RTD 4.0.0.  

Is the issue fixed in S32D3 RTD 4.0.0? And what can we do to fix the stop transmitting CAN messages issue?  

Please help,

Kody

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