Sys Tec Electronic GW-003 - Figure 14: Hardware Parameter Structure Overview; Figure 15: CAN-Ethernet-Gateway Transfer Protocols

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Software Support

Parameter:

pEthCanHandle_p: Address of the instance handle of the CAN-

Ethernet Gateway

This variable is a pointer of type tEthCanHandle. Upon successful

initialization, this address includes a valid hardware handle that also

serves as an instance handle. This instance handle should be secured

and identified as a return parameter when all other functions of this

instance are called.

pEthCanHwParam_p: Address to the hardware parameter structure

This variable is an address to a tEthCanHwParam hardware

parameter structure. It has the following structure:

typedef struct

{

DWORD m_dwIpAddress; //IP address

WORD m_wPort; //Port number

tUsedProtocol m_UsedProtocol; //Protocol (UDP or TCP)

DWORD m_dwReconnectTimeout; //Timeout for "Reconnect"

DWORD m_dwConnectTimeout; //Timeout for "Connect"

DWORD m_dwDisconnectTimeout; //Timeout for "Disconnect"

}tEthCanHwParam;

Figure 14: Hardware Parameter Structure Overview

This structure has to be filled out accordingly prior to a return to the

function. The IP address and port number correspond to the remote

address (IP address of the CAN-Ethernet Gateway) to which a

connection has to be established. The following format must be used:

#define IP_ADDR_DEFAULT ((192 << 0)+(168 << 8)+ (10 << 16)+(111 << 24))

#define IP_PORT_DEFAULT (8234)

UDP and TCP are available for the transfer protocol to be used.

typedef enum

{

kUseTCP = 0x00, // TCP Protocol

kUseUDP = 0x01 // UDP Protocol

}tUsedProtocol;

Figure 15: CAN-Ethernet-Gateway Transfer Protocols