Lesson 04 of 07 · about 5 min

Who went bus-off

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7

A CAN node counts its own transmit errors. Past 127 it is error passive. At 255 it goes bus-off and stops transmitting until a recovery sequence. The other nodes keep their counters at zero and keep sending.

This log is one quiet second on the bench bus. Name the node that went silent, and the identifier of its last good data frame. Error frames have no identifier.

On the Knowledge page

Resources