Error Codes

This chapter contains the description of all error codes.

Error Code	The error code indicates, that ...
`CAN_ERR_NONE`	no error is detected.
`CAN_ERR_NULLPTR`	a parameter pointer is NULL
`CAN_ERR_BUSID`	the bus identifier is out of range
`CAN_ERR_FRMSIZE`	the buffer size (CAN frame size) is invalid
`CAN_ERR_OPEN`	the driver indicates, that the CAN bus cant be opened
`CAN_ERR_ENABLE`	the CAN bus cant be enabled
`CAN_ERR_IOCTRLFUNC`	the I/O function code is out of range
`CAN_ERR_NULLMSG`	the given message identifier is not found
`CAN_ERR_MSGID`	the message identifier is out of range
`CAN_ERR_MSGUNUSED`	unused signals are linked to the message
`CAN_ERR_MSGCREATE`	the message cant be created
`CAN_ERR_SIGID`	the signal identifier is out of range
`CAN_ERR_NULLSIGCFG`	the signal is not configured
`CAN_ERR_CANSIZE`	the given signal size is invalid, e.g. is not 1, 2 or 4
`CAN_ERR_SIGCREATE`	the signal cant be created
`CAN_ERR_FRMWIDTH`	the given frame width is not 1, 2 or 4
`CAN_ERR_OSFREE`	the CAN frame cant be released to the memory pool
`CAN_ERR_OSQUEUE`	the CAN frame cant be set into the RX or TX queue
`CAN_ERR_OSALLOC`	the CAN frame cant be allocated from the memory pool
`CAN_ERR_OSSEM`	the CAN semaphore(s) cant be created
`CAN_ERR_OSQPEND`	the CAN RX queue is empty and timeout error is detected
`CAN_ERR_NOFRM`	the CAN RX queue is empty
`CAN_ERR_OSSEMPEND`	the CAN semaphore pending timeout error is detected
`CAN_ERR_OSSEMPOST`	the CAN semaphore posting timeout error is detected
`CAN_ERR_OSQACCEPT`	the CAN TX queue is empty

Note: the global variable CPU_INT16S can_errnum holds the last detected error code.