The debug message handling state machine ensures that debug messages are stored to three consecutive Rx Buffers in the correct order. If some messages are missing, the process is restarted. The DMA request is activated only when all three debug messages A, B, C have been received in the correct order.
The status of the debug message handling state machine is signalled via MCAN_RXF1S.DMS.
Figure 1. Debug Message Handling State Machine
