com.eurotech.framework.protocol.can
Interface CanConnectionService

All Known Implementing Classes:

CanConnectionServiceImpl

public interface CanConnectionService

This is the primary control class for a CAN network interface.

Method Summary

CanMessage	receiveCanMessage(int can_id, int can_mask) Reads frames that are waiting on socket CAN (all interfaces) and returns an array if canId is correct.
void	sendCanMessage(String ifName, int canId, byte[] message) Sends an array of bytes on a CAN socket

Method Detail

sendCanMessage

void sendCanMessage(String ifName,
                    int canId,
                    byte[] message)
                    throws EsfException,
                           IOException

Sends an array of bytes on a CAN socket

Parameters:

ifName - the name of the socket (eg "can0")

canId - can identifier, must be unique

message - the array of bytes to send to the socket

Throws:

EsfException

IOException

receiveCanMessage

CanMessage receiveCanMessage(int can_id,
                             int can_mask)
                             throws EsfException,
                                    IOException

Reads frames that are waiting on socket CAN (all interfaces) and returns an array if canId is correct.

A filter can be defined to receive only frames for the id we are interested in. If the can_id param is set to -1, no filter is applied.

Parameters:

can_id - id to be filtered

can_mask - mask to be applied to the id

Returns:

CanMessage = canId and an array of bytes buffered on the socket if any

Throws:

EsfException

IOException