Moxa TC-SW04-M12-4P-T Инструкция по эксплуатации онлайн [28/43] 171088

Moxa TC-SW04-M12-8P Инструкция по эксплуатации онлайн [28/43] 171089

TC-6000 Series Expansion Modules Software Installation and Programming Guide

4-8

int nbytes;

struct sockaddr_can addr;

struct can_frame frame;

struct ifreq ifr;

char *ifname = "can0";

if((s = socket(PF_CAN, SOCK_RAW, CAN_RAW)) < 0) {

perror("Error while opening socket");

return -1;

}

strcpy(ifr.ifr_name, ifname);

ioctl(s, SIOCGIFINDEX, &ifr);

addr.can_family = AF_CAN;

addr.can_ifindex = ifr.ifr_ifindex;

printf("%s at index %d\n", ifname, ifr.ifr_ifindex);

if(bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {

perror("Error in socket bind");

return -2;

}

frame.can_id = 0x123;

frame.can_dlc = 2;

frame.data[0] = 0x11;

frame.data[1] = 0x22;

nbytes = write(s, &frame, sizeof(struct can_frame));

printf("Wrote %d bytes\n", nbytes);

return 0;

}

The following is sample code for reading data.

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <string.h>

#include <net/if.h>

#include <sys/types.h>

#include <sys/socket.h>

#include <sys/ioctl.h>

#include <linux/can.h>

#include <linux/can/raw.h>

int

main(void)

{

int i;

int s;

int nbytes;

struct sockaddr_can addr;

struct can_frame frame;

Moxa TC-SW04-M12-4P-T Инструкция по эксплуатации онлайн [28/43] 171088

Содержание

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