obcantest_pxa.c

arm-linux 下小键盘驱动程序源码

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include "can_pxa.h"
#include <memory.h>

int main()
{
int i;	
int c0,c1;
struct canmsg_t cd,cs;
int cts = 10;

c0=open("/dev/can0",O_RDWR);
c1=open("/dev/can1",O_RDWR);

if(c0<0||c1<0)
{
  printf("error open can dev\n");
  exit(0);
}

cs.length=8;
cs.id=0;

for(cts=0;cts<10;cts++)
{
	printf("time is %x\n",cts);
	for(i=0;i<8;i++) cs.data[i]=i+cts;
  memset(&cd,0,sizeof(cd));
  write(c0,&cs,sizeof(cs));
  usleep(1000);
  read(c1,&cd,1);
  for(i=0;i<8;i++) printf("cs.data[%x]=%x\n",i,cd.data[i]);
  for(i=0;i<8;i++)
  {
  	if(cd.data[i]!=i+cts)
  	{
  		printf("error");
  		exit(0);
  	}
  }
}

close(c1);
close(c0);

printf("can test passed\n");
exit(1);
return 1;
}