What is CAN bus off and how is it recovered?

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CAN bus off is a state where communication between nodes on a CAN bus is lost. It can be recovered by resetting the bus or fixing the underlying issue.

CAN bus off occurs when a node on the bus detects an error and goes into a fault state.
This can happen due to issues like a short circuit, open circuit, or excessive noise on the bus.
To recover from CAN bus off, the bus needs to be reset or the underlying issue needs to be fixed.
Resetting the bus involves sending a sequence of messages to wake up the nodes and bring them back online.
In some cases, the underlying issue may need to be fixed before the bus can be reset.
CAN bus off can be prevented by using proper termination, shielding, and grounding techniques.

What is CAN bus off and how is it recovered?

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