ST STM32F31xx

Controller area network (bxCAN)
UM1581
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DocID023800 Rev 1
 CAN_ERRORCODE_StuffErr: Stuff Error
 CAN_ERRORCODE_FormErr: Form Error
 CAN_ERRORCODE_ACKErr : Acknowledgment Error
 CAN_ERRORCODE_BitRecessiveErr: Bit Recessive
Error
 CAN_ERRORCODE_BitDominantErr: Bit Dominant
Error
 CAN_ERRORCODE_CRCErr: CRC Error
 CAN_ERRORCODE_SoftwareSetErr: Software Set
Error
Notes
 None.
4.2.12.2 CAN_GetReceiveErrorCounter
Function Name
uint8_t CAN_GetReceiveErrorCounter ( CAN_TypeDef *
CANx)
Function Description
Returns the CANx Receive Error Counter (REC).
Parameters
 CANx : where x can be 1 or 2 to to select the CAN
peripheral.
Return values
 CAN Receive Error Counter.
Notes
 In case of an error during reception, this counter is
incremented by 1 or by 8 depending on the error condition as
defined by the CAN standard. After every successful
reception, the counter is decremented by 1 or reset to 120 if
its value was higher than 128. When the counter value
exceeds 127, the CAN controller enters the error passive
state.
4.2.12.3 CAN_GetLSBTransmitErrorCounter
Function Name
uint8_t CAN_GetLSBTransmitErrorCounter ( CAN_TypeDef *
CANx)
Function Description
Returns the LSB of the 9-bit CANx Transmit Error Counter(TEC).
Parameters
 CANx : where x can be 1 or 2 to to select the CAN
peripheral.
Return values
 LSB of the 9-bit CAN Transmit Error Counter.
Notes
 None.