CAN Read_only_mode

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CAN Read_only_mode

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449 次查看
Tau
Contributor I

I am currently using the S32K144. I would like to know how to set the CAN read_only_mode. Also, I want to know why I can’t receive bus messages under the read_only_mode.

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428 次查看
PetrS
NXP TechSupport
NXP TechSupport

Hi,

refer to Listen Only Mode, set by CRTL1[LOM] bit. In this mode more nodes must be connected to the bus as messages not acknowledged is not received in LOM mode.

PetrS_0-1758177877196.png

BR, Petr

 

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429 次查看
PetrS
NXP TechSupport
NXP TechSupport

Hi,

refer to Listen Only Mode, set by CRTL1[LOM] bit. In this mode more nodes must be connected to the bus as messages not acknowledged is not received in LOM mode.

PetrS_0-1758177877196.png

BR, Petr

 

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423 次查看
Tau
Contributor I

so,if I have only one node, I can not use this mode

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%3CLINGO-SUB%20id%3D%22lingo-sub-2171647%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3ECAN%20%E5%8F%AA%E8%AF%BB%E6%A8%A1%E5%BC%8F%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2171647%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%3CSPAN%3E%E6%88%91%E7%9B%AE%E5%89%8D%E4%BD%BF%E7%94%A8%E7%9A%84%E6%98%AF%20S32K144%E3%80%82%E6%88%91%E6%83%B3%E7%9F%A5%E9%81%93%E5%A6%82%E4%BD%95%E8%AE%BE%E7%BD%AE%20CAN%20%E7%9A%84%E5%8F%AA%E8%AF%BB%E6%A8%A1%E5%BC%8F%E3%80%82%E5%8F%A6%E5%A4%96%EF%BC%8C%E6%88%91%E6%83%B3%E7%9F%A5%E9%81%93%E4%B8%BA%E4%BB%80%E4%B9%88%E6%88%91%E6%97%A0%E6%B3%95%E5%9C%A8%20read_only_mode%20%E4%B8%8B%E6%94%B6%E5%88%B0%E6%80%BB%E7%BA%BF%E6%B6%88%E6%81%AF%E3%80%82%3C%2FSPAN%3E%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2171713%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20CAN%20Read_only_mode%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2171713%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%E5%9B%A0%E6%AD%A4%EF%BC%8C%E5%A6%82%E6%9E%9C%E6%88%91%E5%8F%AA%E6%9C%89%E4%B8%80%E4%B8%AA%E8%8A%82%E7%82%B9%EF%BC%8C%E5%B0%B1%E4%B8%8D%E8%83%BD%E4%BD%BF%E7%94%A8%E8%BF%99%E7%A7%8D%E6%A8%A1%E5%BC%8F%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2171696%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20CAN%20Read_only_mode%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2171696%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%E6%82%A8%E5%A5%BD%EF%BC%8C%3C%2FP%3E%0A%3CP%3E%E6%8C%87%E4%BB%85%E7%9B%91%E5%90%AC%E6%A8%A1%E5%BC%8F%EF%BC%8C%E7%94%B1%20CRTL1%5BLOM%5D%20%E4%BD%8D%E8%AE%BE%E7%BD%AE%E3%80%82%E5%9C%A8%E6%AD%A4%E6%A8%A1%E5%BC%8F%E4%B8%8B%EF%BC%8C%E7%94%B1%E4%BA%8E%E5%9C%A8%20LOM%20%E6%A8%A1%E5%BC%8F%E4%B8%8B%E4%B8%8D%E4%BC%9A%E6%94%B6%E5%88%B0%E6%9C%AA%E7%A1%AE%E8%AE%A4%E7%9A%84%E6%B6%88%E6%81%AF%EF%BC%8C%E5%9B%A0%E6%AD%A4%E5%BF%85%E9%A1%BB%E5%B0%86%E6%9B%B4%E5%A4%9A%E8%8A%82%E7%82%B9%E8%BF%9E%E6%8E%A5%E5%88%B0%E6%80%BB%E7%BA%BF%E3%80%82%3C%2FP%3E%0A%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%20lia-image-align-inline%22%20image-alt%3D%22PetrS_0-1758177877196.png%22%20style%3D%22width%3A%20400px%3B%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22PetrS_0-1758177877196.png%22%20style%3D%22width%3A%20400px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F357456i92A2F2F0DB396306%2Fimage-size%2Fmedium%3Fv%3Dv2%26amp%3Bpx%3D400%22%20role%3D%22button%22%20title%3D%22PetrS_0-1758177877196.png%22%20alt%3D%22PetrS_0-1758177877196.png%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3C%2FP%3E%0A%3CP%3EBR%2C%20Petr%3C%2FP%3E%0A%3CBR%20%2F%3E%3C%2FLINGO-BODY%3E