ST STM32F405

Controller area network (bxCAN) RM0090
1092/1749 RM0090 Rev 18
Figure 345. CAN error state diagram
ERROR PASSIVE
When TEC or REC > 127
When TEC and REC < 128,
ERROR ACTIVE
BUS OFF
When TEC > 255When 128 * 11 recessive bits occur:
ai15903