FdDriverOpenH (FUN)¶

FUNCTION FdDriverOpenH : CAA.HANDLE

Opens a CAN FD interface and allocates memory from heap. Please note that not all hardware supports every baud rate combination. If a baud rate is not supported or if the interface cannot be opened due to different reasons, the function returns CAA.gc_hINVALID. The function can be called several times on the same interface, so that multiple parts of a program can work on it. You can set uiNominalBaudrate and uiDataBaudrate to 0 if the interface is already opened or if the default baudrate from configuration file should be used. See following section in configuration file:

InOut:

Scope	Name	Type	Comment
Return	FdDriverOpenH	CAA.HANDLE	handle of CAN FD interface or CAA.gc_hINVALID if failed.
Input	usiNetId	USINT	number of FD-capable CAN interface [0..n]
	uiNominalBaudrate	UINT	Baud rate used for arbitration. Unit: kBit/s
	uiDataBaudrate	UINT	Baud rate used for data phase. If > 0 then bitrate switching is enabled. Unit: kBit/s
	xSupport29Bits	BOOL	FALSE: only 11-Bit IDs, TRUE: support also 29-Bit
	ctMessages	CAA.COUNT	number of FD transmit messages which should be allocated
	peError	POINTER TO ERROR	optional pointer to error enum