Errors

The RL-CAN library routines return one of the following error constants to indicate status.

• CAN_OK
  Indicates the function completed successfully without error.
• CAN_NOT_IMPLEMENTED_ERROR
  Indicates the function is not implemented.
• CAN_MEM_POOL_INIT_ERROR
  Indicates that the memory pool used for software message buffers did not initialize successfully.
• CAN_BAUDRATE_ERROR
  Indicates that the communication speed was incorrectly initialized.
• CAN_TX_BUSY_ERROR
  Indicates that the transmit hardware is busy.
• CAN_OBJECTS_FULL_ERROR
  Indicates that no more transmit or receive objects may be defined.
• CAN_ALLOC_MEM_ERROR
  Indicates there is no available memory in the CAN memory pool.
• CAN_DEALLOC_MEM_ERROR
  Indicates that the memory used by the transmitted or received message was not correctly deallocated.
• CAN_TIMEOUT_ERROR
  Indicates that the timeout expired before a message was transmitted.
• CAN_UNEXIST_CTRL_ERROR
  Indicates that the requested CAN controller does not exist.
• CAN_UNEXIST_CH_ERROR
  Indicates that the requested CAN channel does not exist.

If the function completes successfully and without error, CAN_OK is returned.

Note

• CAN error codes are defined as an enumerated CAN_ERROR type in RTX_CAN.h.