sendburst.c

来自「can bus driver code.」· C语言 代码 · 共 44 行

#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>


#include "../include/can.h"

int main(void)
	{
	struct canmsg_t sendmsg={0,0,5,0,8,{1,2,3,4,5,6,7,8}};
	int fd, ret,i,j;

	if ((fd=open("/dev/can0",O_RDWR)) < 0 ) 
		{
		perror("open");
		printf("Error opening /dev/can0\n");
		exit(1);
		}
	j=0;
	while (1)
		{
		for(i=0;i<10;i++)
			{
			sendmsg.data[0]=i;
			sendmsg.data[1]=j;
			if ((ret=write(fd,&sendmsg,sizeof(struct canmsg_t))) < 0)
			  {
				perror("write");
				printf("Error sending message\n");
				break;
				}
			}
		printf("Sent block of 10 messages #: %u\n",j);
		j++;
		usleep(500000);
		}
	close(fd);
	return 0;
	}