DriverOpenP (FUN)¶

FUNCTION DriverOpenP : CAA.HANDLE

See DriverOpenH for details. In contrast to DriverOpenH no dynamic memory will be allocated. Memory specified by pMemory and szMemSize is used. Use DriverGetSize to calculate the required memory size. Please note that required memory size can change with new runtime version.

Note

pMemory should be aligned to a 4 byte address on 32 bit systems and an 8 byte address on 64 bit systems. To ensure this alignment, you can declare the memory with ARRAY [0..n] of __XWORD. Please keep in mind that the required memory size is different for 32 and 64-bit systems.

InOut:

Scope	Name	Type	Comment
Return	`DriverOpenP`	`CAA.HANDLE`	handle of CAN interface or `CAA.gc_hINVALID` if failed.
Input	`usiNetId`	`USINT`	number of CAN interface [0..n]
	`uiBaudrate`	`UINT`	Baudrate in kBit/s e.g. 1000 for 1 Mbit
	`xSupport29Bits`	`BOOL`	`FALSE`: only 11-Bit IDs, `TRUE`: support also 29-Bit
	`szMemSize`	`CAA.SIZE`	size of allocated memory
	`pMemory`	`CAA.PVOID`	pointer to aligned memory
	`peError`	POINTER TO ERROR	optional pointer to error enum