TJA1043 providing incorrect wakeup indication over ERRN Pin

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TJA1043 providing incorrect wakeup indication over ERRN Pin

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raghuramdevanur
Contributor I

Hello,

We are using TJA1043 CAN transceiver in our project.

We are facing an issue in one hardware, where we are receiving wakeup (ERRN) signal from the transceiver during the shutdown process (when we try to put the transceiver into sleep mode), even though the hardware is not connected to the bus. This issue is specific only this this hardware.

Any clues on what could be causing the transceiver to behave in this way, would be helpful for us to further analyze this issue.

We are following the flow for entering into sleep mode as per the application manual provided by NXP for TJA1043. I am attaching the same here.

Regards,

Raghuram

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