5.4 Init Function
These functions are used to enable / disable CAN port function of I-
7565-H1/H2.
5.4.1 VCI_OpenCAN
This function is used to enable the assigned CAN port function of I-
7565-H1/H2. After the CAN port function is enabled, users can use
“Communication” functions to send / receive CAN messages.
Syntax :
int
VCI_OpenCAN (
PVCI_CAN_PARAM
pCANPARAM
);
Parameter :
pCANPARAM
:
[in] A structure pointer of _VCI_CAN_PARAM is used to set the CAN
port communication parameters shown as below.
typedef struct _VCI_CAN_PARAM{
BYTE DevPort;
BYTE DevType;
DWORD CAN1_Baud;
DWORD CAN2_Baud;
} _VCI_CAN_PARAM, *PVCI_CAN_PARAM;
DevPort
:
The virtual com port number
DevType
:
The module type (1
:
I-7565-H1; 2
:
I-7565-H2)
CAN1_Baud
:
CAN1 port baud rate
(0
:
Disable CAN1 port
Others
:
Enable CAN1 port)
CAN2_Baud
:
CAN2 port baud rate
(0
:
Disable CAN2 port
Others
:
Enable CAN2 port)
Return Values :
Return 0 means success, others means failure.
Examples :
Int Ret;
_VCI_CAN_PARAM pCANPARAM;
pCANPARAM.DevPort = 1;
// Virtual com port = 1
I-7565-H1/H2 High Performance USB/CAN Converter User’s Manual (Ver 1.7, Aug/2011) ------------- 47
