CANBUS_DATA

This structure holds the runtime data for the CAN bus management.

typedef struct {

CANBUS_PARA *Cfg;

CPU_INT16S Dev;

CPU_INT16U RxTimeout;

CPU_INT16U TxTimeout;

CANFRM BufTx[CANBUS_TX_QSIZE];

CPU_INT16U BufTxRd;

CPU_INT16U BufTxWr;

CANFRM BufRx[CANBUS_RX_QSIZE];

CPU_INT16U BufRxRd;

CPU_INT16U BufRxWr;

#if CANBUS_STAT_EN > 0

CPU_INT16U RxOkay;

CPU_INT16U TxOkay;

CPU_INT16U RxLost;

CPU_INT16U TxLost;

#endif

} CANBUS_DATA;

Member	Meaning
Cfg	The pointer to the read-only CAN bus configuration
Dev	This member holds the device ID, which is returned by the `Open()` function of the linked low level device driver.
RxTimeout	The timeout, which is used during the `CanBusRead()`
TxTimeout	The timeout, which is used during the `CanBusWrite()`
BufTx[]	The internal transmit queue which is used between `CanBusWrite()` and `CanBusTxHandler()` when the CAN bus is busy.
BufTxRd	The internal transmit queue read pointer.
BufTxWr	The internal transmit queue write pointer.
BufRx[]	The internal receive queue which is used between `CanBusRxHandler()` and `CanBusRead()`.
BufRxRd	The internal receive queue read pointer.
BufRxWr	The internal receive queue write pointer.
RxOkay	This member holds the counter, which will be incremented every received CAN frame. This counter is incremented, when the `CanBusRead()` function successfully gives the CAN frame to the application layer.
TxOkay	The counter, which will be incremented every transmitted CAN frame. This counter is incremented, when the CAN transmit complete interrupt indicates, that the CAN frame is sent to the bus.
RxLost	This member holds the counter, which will be incremented for every received CAN frame which can not transferred to the application, due to a full receive queue.
TxLost	This member holds the counter, which will be incremented for every transmission CAN frame, which can not transferred to the transmit interrupt handler due to a full transmission queue

End