CANBUS_DATA

Description

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

Members

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